diff --git a/examples/access-control-migration/.dockerignore b/examples/access-control-migration/.dockerignore
new file mode 100644
index 000000000000..7aecc7e3dda5
--- /dev/null
+++ b/examples/access-control-migration/.dockerignore
@@ -0,0 +1,5 @@
+node_modules
+npm-debug.log
+/dist
+# Cache used by TypeScript's incremental build
+*.tsbuildinfo
diff --git a/examples/access-control-migration/.eslintrc.js b/examples/access-control-migration/.eslintrc.js
new file mode 100644
index 000000000000..96a619049d5c
--- /dev/null
+++ b/examples/access-control-migration/.eslintrc.js
@@ -0,0 +1,8 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+module.exports = {
+  extends: ['@loopback/eslint-config'],
+};
diff --git a/examples/access-control-migration/.npmignore b/examples/access-control-migration/.npmignore
new file mode 100644
index 000000000000..f86f365ab85b
--- /dev/null
+++ b/examples/access-control-migration/.npmignore
@@ -0,0 +1,2 @@
+# Exclude *.tsbuildinfo - cache for tsc incremental builds
+*.tsbuildinfo
diff --git a/examples/access-control-migration/.npmrc b/examples/access-control-migration/.npmrc
new file mode 100644
index 000000000000..cafe685a112d
--- /dev/null
+++ b/examples/access-control-migration/.npmrc
@@ -0,0 +1 @@
+package-lock=true
diff --git a/examples/access-control-migration/.prettierignore b/examples/access-control-migration/.prettierignore
new file mode 100644
index 000000000000..c6911da9e1e8
--- /dev/null
+++ b/examples/access-control-migration/.prettierignore
@@ -0,0 +1,2 @@
+dist
+*.json
diff --git a/examples/access-control-migration/.prettierrc b/examples/access-control-migration/.prettierrc
new file mode 100644
index 000000000000..f58b81dd7be2
--- /dev/null
+++ b/examples/access-control-migration/.prettierrc
@@ -0,0 +1,6 @@
+{
+  "bracketSpacing": false,
+  "singleQuote": true,
+  "printWidth": 80,
+  "trailingComma": "all"
+}
diff --git a/examples/access-control-migration/.vscode/launch.json b/examples/access-control-migration/.vscode/launch.json
new file mode 100644
index 000000000000..d90497e32056
--- /dev/null
+++ b/examples/access-control-migration/.vscode/launch.json
@@ -0,0 +1,17 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Launch Program",
+      "skipFiles": [
+        "<node_internals>/**"
+      ],
+      "program": "${workspaceFolder}/index.js"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/examples/access-control-migration/.vscode/settings.json b/examples/access-control-migration/.vscode/settings.json
new file mode 100644
index 000000000000..7c80afccc2b4
--- /dev/null
+++ b/examples/access-control-migration/.vscode/settings.json
@@ -0,0 +1,20 @@
+{
+  "editor.rulers": [80],
+  "editor.tabCompletion": "on",
+  "editor.tabSize": 2,
+  "editor.trimAutoWhitespace": true,
+  "editor.formatOnSave": true,
+
+  "files.exclude": {
+    "**/.DS_Store": true,
+    "**/.git": true,
+    "**/.hg": true,
+    "**/.svn": true,
+    "**/CVS": true,
+    "dist": true,
+  },
+  "files.insertFinalNewline": true,
+  "files.trimTrailingWhitespace": true,
+
+  "typescript.tsdk": "./node_modules/typescript/lib"
+}
diff --git a/examples/access-control-migration/.vscode/tasks.json b/examples/access-control-migration/.vscode/tasks.json
new file mode 100644
index 000000000000..555f092d81eb
--- /dev/null
+++ b/examples/access-control-migration/.vscode/tasks.json
@@ -0,0 +1,29 @@
+{
+  // See https://go.microsoft.com/fwlink/?LinkId=733558
+  // for the documentation about the tasks.json format
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "Watch and Compile Project",
+      "type": "shell",
+      "command": "npm",
+      "args": ["--silent", "run", "build:watch"],
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "problemMatcher": "$tsc-watch"
+    },
+    {
+      "label": "Build, Test and Lint",
+      "type": "shell",
+      "command": "npm",
+      "args": ["--silent", "run", "test:dev"],
+      "group": {
+        "kind": "test",
+        "isDefault": true
+      },
+      "problemMatcher": ["$tsc", "$eslint-stylish", "$eslint-compact"]
+    }
+  ]
+}
diff --git a/examples/access-control-migration/Dockerfile b/examples/access-control-migration/Dockerfile
new file mode 100644
index 000000000000..bca90e201a53
--- /dev/null
+++ b/examples/access-control-migration/Dockerfile
@@ -0,0 +1,28 @@
+# Check out https://hub.docker.com/_/node to select a new base image
+FROM node:10-slim
+
+# Set to a non-root built-in user `node`
+USER node
+
+# Create app directory (with user `node`)
+RUN mkdir -p /home/node/app
+
+WORKDIR /home/node/app
+
+# Install app dependencies
+# A wildcard is used to ensure both package.json AND package-lock.json are copied
+# where available (npm@5+)
+COPY --chown=node package*.json ./
+
+RUN npm install
+
+# Bundle app source code
+COPY --chown=node . .
+
+RUN npm run build
+
+# Bind to all network interfaces so that it can be mapped to the host OS
+ENV HOST=0.0.0.0 PORT=3000
+
+EXPOSE ${PORT}
+CMD [ "node", "." ]
diff --git a/examples/access-control-migration/LICENSE b/examples/access-control-migration/LICENSE
new file mode 100644
index 000000000000..05b33530dda0
--- /dev/null
+++ b/examples/access-control-migration/LICENSE
@@ -0,0 +1,25 @@
+Copyright (c) IBM Corp. 2020. All Rights Reserved.
+Node module: @loopback/example-access-control-migration
+This project is licensed under the MIT License, full text below.
+
+--------
+
+MIT license
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/examples/access-control-migration/README.md b/examples/access-control-migration/README.md
new file mode 100644
index 000000000000..9f58a1808678
--- /dev/null
+++ b/examples/access-control-migration/README.md
@@ -0,0 +1,73 @@
+# @loopback/example-access-control-migration
+
+This example is migrated from
+[loopback-example-access-control](https://github.com/strongloop/loopback-example-access-control),
+and uses the authentication and authorization system in LoopBack 4 to implement
+the access control.
+
+## Overview
+
+This tutorial demonstrates how to implement a RBAC(Role Based Access Control)
+system and provides 5 endpoints to test different role's permissions. The
+tutorial of building it from a dummy application documented in
+![auth-example-migration-tutorial](https://github.com/strongloop/loopback-next/blob/auth-migration/docs/site/migration/auth/example.md)
+
+## Setup
+
+First, you'll need to install a supported version of Node:
+
+- [Node.js](https://nodejs.org/en/) at v10 or greater
+
+Additionally, this tutorial assumes that you are comfortable with certain
+technologies, languages and concepts.
+
+- JavaScript (ES6)
+- [REST](http://www.restapitutorial.com/lessons/whatisrest.html)
+
+Lastly, you'll need to install the LoopBack 4 CLI toolkit:
+
+```sh
+npm i -g @loopback/cli
+```
+
+## Try it out
+
+If you'd like to see the final results of this tutorial as an example
+application, follow these steps:
+
+```sh
+  $ npm start
+
+  Server is running at http://127.0.0.1:3000
+```
+
+Then try different roles' permissions by following the
+[try it out section](https://github.com/strongloop/loopback-next/blob/auth-migration/docs/site/migration/auth/example.md#try-it-out)
+
+### Need help?
+
+Check out our [Gitter channel](https://gitter.im/strongloop/loopback) and ask
+for help with this tutorial.
+
+### Bugs/Feedback
+
+Open an issue in [loopback-next](https://github.com/strongloop/loopback-next)
+and we'll take a look.
+
+## Contributions
+
+- [Guidelines](https://github.com/strongloop/loopback-next/blob/master/docs/CONTRIBUTING.md)
+- [Join the team](https://github.com/strongloop/loopback-next/issues/110)
+
+## Tests
+
+Run `npm test` from the root folder.
+
+## Contributors
+
+See
+[all contributors](https://github.com/strongloop/loopback-next/graphs/contributors).
+
+## License
+
+MIT
diff --git a/examples/access-control-migration/data/db.json b/examples/access-control-migration/data/db.json
new file mode 100644
index 000000000000..f692036839b0
--- /dev/null
+++ b/examples/access-control-migration/data/db.json
@@ -0,0 +1,28 @@
+{
+  "ids": {
+    "Project": 3,
+    "Team": 3,
+    "User": 4,
+    "UserCredentials": 4
+  },
+  "models": {
+    "Project": {
+      "1": "{\"id\":1,\"name\":\"project1\",\"balance\":90,\"ownerId\":1}",
+      "2": "{\"id\":2,\"name\":\"project2\",\"balance\":0,\"ownerId\":2}"
+    },
+    "Team": {
+      "1": "{\"id\":1,\"ownerId\":1,\"memberIds\":[1,2]}",
+      "2": "{\"id\":2,\"ownerId\":2,\"memberIds\":[2]}"
+    },
+    "User": {
+      "1": "{\"id\":1,\"username\":\"John\",\"email\":\"john@doe.com\"}",
+      "2": "{\"id\":2,\"username\":\"Jane\",\"email\":\"jane@doe.com\"}",
+      "3": "{\"id\":3,\"username\":\"Bob\",\"email\":\"bob@projects.com\"}"
+    },
+    "UserCredentials": {
+      "1": "{\"password\":\"$2a$10$Yn1/fMOjW6A.CdH7Yxb7weVFYmkcQJQBaYaiRScS6sw7ty3aL4lHu\",\"userId\":1,\"id\":1}",
+      "2": "{\"password\":\"$2a$10$Yn1/fMOjW6A.CdH7Yxb7weVFYmkcQJQBaYaiRScS6sw7ty3aL4lHu\",\"userId\":2,\"id\":2}",
+      "3": "{\"password\":\"$2a$10$Yn1/fMOjW6A.CdH7Yxb7weVFYmkcQJQBaYaiRScS6sw7ty3aL4lHu\",\"userId\":3,\"id\":3}"
+    }
+  }
+}
\ No newline at end of file
diff --git a/examples/access-control-migration/fixtures/casbin/rbac_model.conf b/examples/access-control-migration/fixtures/casbin/rbac_model.conf
new file mode 100644
index 000000000000..71159e387d34
--- /dev/null
+++ b/examples/access-control-migration/fixtures/casbin/rbac_model.conf
@@ -0,0 +1,14 @@
+[request_definition]
+r = sub, obj, act
+
+[policy_definition]
+p = sub, obj, act
+
+[role_definition]
+g = _, _
+
+[policy_effect]
+e = some(where (p.eft == allow))
+
+[matchers]
+m = g(r.sub, p.sub) && r.obj == p.obj && r.act == p.act
\ No newline at end of file
diff --git a/examples/access-control-migration/fixtures/casbin/rbac_policy.admin.csv b/examples/access-control-migration/fixtures/casbin/rbac_policy.admin.csv
new file mode 100644
index 000000000000..737e22e9dfe3
--- /dev/null
+++ b/examples/access-control-migration/fixtures/casbin/rbac_policy.admin.csv
@@ -0,0 +1,4 @@
+p, admin, project*, view-all
+p, admin, project1, donate
+p, admin, project2, donate
+g, u3, admin
\ No newline at end of file
diff --git a/examples/access-control-migration/fixtures/casbin/rbac_policy.owner.csv b/examples/access-control-migration/fixtures/casbin/rbac_policy.owner.csv
new file mode 100644
index 000000000000..cfbaa311a6ce
--- /dev/null
+++ b/examples/access-control-migration/fixtures/casbin/rbac_policy.owner.csv
@@ -0,0 +1,8 @@
+p, p1_owner, project1, show-balance
+p, p1_owner, project1, donate
+p, p1_owner, project1, withdraw
+g, u1, p1_owner
+p, p2_owner, project2, show-balance
+p, p2_owner, project2, donate
+p, p2_owner, project2, withdraw
+g, u2, p2_owner
diff --git a/examples/access-control-migration/fixtures/casbin/rbac_policy.team_member.csv b/examples/access-control-migration/fixtures/casbin/rbac_policy.team_member.csv
new file mode 100644
index 000000000000..49a1ed509b59
--- /dev/null
+++ b/examples/access-control-migration/fixtures/casbin/rbac_policy.team_member.csv
@@ -0,0 +1,7 @@
+p, p1_team, project1, show-balance
+p, p1_team, project1, donate
+g, u1, p1_team
+g, u2, p1_team
+p, p2_team, project2, show-balance
+p, p2_team, project2, donate
+g, u2, p2_team
\ No newline at end of file
diff --git a/examples/access-control-migration/index.d.ts b/examples/access-control-migration/index.d.ts
new file mode 100644
index 000000000000..737cc5bf8047
--- /dev/null
+++ b/examples/access-control-migration/index.d.ts
@@ -0,0 +1,6 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+export * from './dist';
diff --git a/examples/access-control-migration/index.js b/examples/access-control-migration/index.js
new file mode 100644
index 000000000000..fa2916f2d130
--- /dev/null
+++ b/examples/access-control-migration/index.js
@@ -0,0 +1,26 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+const application = require('./dist');
+
+module.exports = application;
+
+if (require.main === module) {
+  // Run the application
+  const config = {
+    rest: {
+      port: +process.env.PORT || 3000,
+      host: process.env.HOST || 'localhost',
+      openApiSpec: {
+        // useful when used with OpenAPI-to-GraphQL to locate your application
+        setServersFromRequest: true,
+      },
+    },
+  };
+  application.main(config).catch(err => {
+    console.error('Cannot start the application.', err);
+    process.exit(1);
+  });
+}
diff --git a/examples/access-control-migration/index.ts b/examples/access-control-migration/index.ts
new file mode 100644
index 000000000000..e8638d0c7c32
--- /dev/null
+++ b/examples/access-control-migration/index.ts
@@ -0,0 +1,8 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+// DO NOT EDIT THIS FILE
+// Add any additional (re)exports to src/index.ts instead.
+export * from './src';
diff --git a/examples/access-control-migration/package-lock.json b/examples/access-control-migration/package-lock.json
new file mode 100644
index 000000000000..30a3d811a551
--- /dev/null
+++ b/examples/access-control-migration/package-lock.json
@@ -0,0 +1,1795 @@
+{
+	"name": "@loopback/example-access-control-migration",
+	"version": "1.9.5",
+	"lockfileVersion": 1,
+	"requires": true,
+	"dependencies": {
+		"@babel/code-frame": {
+			"version": "7.8.3",
+			"resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.8.3.tgz",
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+			"dev": true,
+			"requires": {
+				"@babel/highlight": "^7.8.3"
+			}
+		},
+		"@babel/highlight": {
+			"version": "7.8.3",
+			"resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.8.3.tgz",
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+			"dev": true,
+			"requires": {
+				"chalk": "^2.0.0",
+				"esutils": "^2.0.2",
+				"js-tokens": "^4.0.0"
+			}
+		},
+		"@types/bcryptjs": {
+			"version": "2.4.2",
+			"resolved": "https://registry.npmjs.org/@types/bcryptjs/-/bcryptjs-2.4.2.tgz",
+			"integrity": "sha512-LiMQ6EOPob/4yUL66SZzu6Yh77cbzJFYll+ZfaPiPPFswtIlA/Fs1MzdKYA7JApHU49zQTbJGX3PDmCpIdDBRQ=="
+		},
+		"@types/eslint-visitor-keys": {
+			"version": "1.0.0",
+			"resolved": "https://registry.npmjs.org/@types/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz",
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+			"dev": true
+		},
+		"@types/json-schema": {
+			"version": "7.0.4",
+			"resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.4.tgz",
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+			"dev": true
+		},
+		"@types/lodash": {
+			"version": "4.14.149",
+			"resolved": "https://registry.npmjs.org/@types/lodash/-/lodash-4.14.149.tgz",
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+			"dev": true
+		},
+		"@types/node": {
+			"version": "10.17.15",
+			"resolved": "https://registry.npmjs.org/@types/node/-/node-10.17.15.tgz",
+			"integrity": "sha512-daFGV9GSs6USfPgxceDA8nlSe48XrVCJfDeYm7eokxq/ye7iuOH87hKXgMtEAVLFapkczbZsx868PMDT1Y0a6A==",
+			"dev": true
+		},
+		"@typescript-eslint/eslint-plugin": {
+			"version": "2.20.0",
+			"resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-2.20.0.tgz",
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+			"dev": true,
+			"requires": {
+				"@typescript-eslint/experimental-utils": "2.20.0",
+				"eslint-utils": "^1.4.3",
+				"functional-red-black-tree": "^1.0.1",
+				"regexpp": "^3.0.0",
+				"tsutils": "^3.17.1"
+			}
+		},
+		"@typescript-eslint/experimental-utils": {
+			"version": "2.20.0",
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+			"dev": true,
+			"requires": {
+				"@types/json-schema": "^7.0.3",
+				"@typescript-eslint/typescript-estree": "2.20.0",
+				"eslint-scope": "^5.0.0"
+			}
+		},
+		"@typescript-eslint/parser": {
+			"version": "2.20.0",
+			"resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-2.20.0.tgz",
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+				"eslint-visitor-keys": "^1.1.0"
+			}
+		},
+		"@typescript-eslint/typescript-estree": {
+			"version": "2.20.0",
+			"resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-2.20.0.tgz",
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+			"requires": {
+				"debug": "^4.1.1",
+				"eslint-visitor-keys": "^1.1.0",
+				"glob": "^7.1.6",
+				"is-glob": "^4.0.1",
+				"lodash": "^4.17.15",
+				"semver": "^6.3.0",
+				"tsutils": "^3.17.1"
+			},
+			"dependencies": {
+				"semver": {
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+			"dev": true
+		},
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+				"extsprintf": "^1.2.0"
+			}
+		},
+		"which": {
+			"version": "1.3.1",
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+			"requires": {
+				"isexe": "^2.0.0"
+			}
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+			"dev": true
+		},
+		"wrappy": {
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+		},
+		"write": {
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+			"dev": true,
+			"requires": {
+				"mkdirp": "^0.5.1"
+			}
+		},
+		"yamljs": {
+			"version": "0.3.0",
+			"resolved": "https://registry.npmjs.org/yamljs/-/yamljs-0.3.0.tgz",
+			"integrity": "sha512-C/FsVVhht4iPQYXOInoxUM/1ELSf9EsgKH34FofQOp6hwCPrW4vG4w5++TED3xRUo8gD7l0P1J1dLlDYzODsTQ==",
+			"requires": {
+				"argparse": "^1.0.7",
+				"glob": "^7.0.5"
+			}
+		}
+	}
+}
diff --git a/examples/access-control-migration/package.json b/examples/access-control-migration/package.json
new file mode 100644
index 000000000000..e44ed88d3a7a
--- /dev/null
+++ b/examples/access-control-migration/package.json
@@ -0,0 +1,81 @@
+{
+  "name": "@loopback/example-access-control-migration",
+  "version": "1.0.0",
+  "description": "Tutorial example on how to migrate the access control example with LoopBack 4.",
+  "main": "index.js",
+  "engines": {
+    "node": ">=10"
+  },
+  "author": "IBM Corp.",
+  "scripts": {
+    "build": "lb-tsc",
+    "build:watch": "lb-tsc --watch",
+    "clean": "lb-clean *example-access-control-migration*.tgz dist *.tsbuildinfo package",
+    "lint": "npm run prettier:check && npm run eslint",
+    "lint:fix": "npm run eslint:fix && npm run prettier:fix",
+    "prettier:cli": "lb-prettier \"**/*.ts\"",
+    "prettier:check": "npm run prettier:cli -- -l",
+    "prettier:fix": "npm run prettier:cli -- --write",
+    "eslint": "lb-eslint --report-unused-disable-directives .",
+    "eslint:fix": "npm run eslint -- --fix",
+    "pretest": "npm run build",
+    "test": "lb-mocha \"dist/__tests__/**/*.js\"",
+    "test:dev": "lb-mocha --allow-console-logs dist/__tests__/**/*.js",
+    "verify": "npm pack && tar xf loopback-access-control-migration*.tgz && tree package && npm run clean",
+    "migrate": "node ./dist/migrate",
+    "prestart": "npm run build",
+    "start": "node ."
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/strongloop/loopback-next.git",
+    "directory": "examples/access-control-migration"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "license": "MIT",
+  "dependencies": {
+    "@loopback/authentication": "^3.3.3",
+    "@loopback/authorization": "^0.4.10",
+    "@loopback/boot": "^1.7.4",
+    "@loopback/context": "^2.1.1",
+    "@loopback/core": "^1.12.4",
+    "@loopback/openapi-v3": "^2.0.0",
+    "@loopback/repository": "^1.19.1",
+    "@loopback/rest": "^2.0.0",
+    "@loopback/rest-explorer": "^1.4.10",
+    "@loopback/security": "^0.1.13",
+    "@loopback/service-proxy": "^1.3.17",
+    "bcryptjs": "^2.4.3",
+    "@types/bcryptjs": "2.4.2",
+    "casbin": "^3.1.0",
+    "jsonwebtoken": "^8.5.1",
+    "loopback-connector-rest": "^3.6.0"
+  },
+  "devDependencies": {
+    "@loopback/build": "^3.1.1",
+    "@loopback/eslint-config": "^5.0.3",
+    "@loopback/http-caching-proxy": "^1.3.0",
+    "@loopback/testlab": "^1.10.3",
+    "@types/lodash": "^4.14.149",
+    "@types/node": "^10.17.14",
+    "@typescript-eslint/eslint-plugin": "^2.19.0",
+    "@typescript-eslint/parser": "^2.19.0",
+    "eslint": "^6.8.0",
+    "eslint-config-prettier": "^6.10.0",
+    "eslint-plugin-eslint-plugin": "^2.2.1",
+    "eslint-plugin-mocha": "^6.2.2",
+    "lodash": "^4.17.15",
+    "typescript": "~3.7.5"
+  },
+  "keywords": [
+    "loopback",
+    "LoopBack",
+    "example",
+    "tutorial",
+    "CRUD",
+    "models",
+    "todo"
+  ]
+}
diff --git a/examples/access-control-migration/public/index.html b/examples/access-control-migration/public/index.html
new file mode 100644
index 000000000000..5a92bba48752
--- /dev/null
+++ b/examples/access-control-migration/public/index.html
@@ -0,0 +1,72 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <title>@loopback/example-access-control-migration</title>
+
+  <meta charset="utf-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <link rel="shortcut icon" type="image/x-icon" href="//v4.loopback.io/favicon.ico">
+
+  <style>
+    h3 {
+      margin-left: 25px;
+      text-align: center;
+    }
+
+    a, a:visited {
+      color: #3f5dff;
+    }
+
+    h3 a {
+      margin-left: 10px;
+    }
+
+    a:hover, a:focus, a:active {
+      color: #001956;
+    }
+
+    .power {
+      position: absolute;
+      bottom: 25px;
+      left: 50%;
+      transform: translateX(-50%);
+    }
+
+    .info {
+      position: absolute;
+      top: 50%;
+      left: 50%;
+      transform: translate(-50%, -50%)
+    }
+
+    .info h1 {
+      text-align: center;
+      margin-bottom: 0
+    }
+
+    .info p {
+      text-align: center;
+      margin-bottom: 3em;
+      margin-top: 1em;
+    }
+  </style>
+</head>
+
+<body>
+  <div class="info">
+    <h1>@loopback/example-access-control-migration</h1>
+
+    <h3>OpenAPI spec: <a href="/openapi.json">/openapi.json</a></h3>
+    <h3>API Explorer: <a href="/explorer">/explorer</a></h3>
+  </div>
+
+  <footer class="power">
+    <a href="https://v4.loopback.io" target="_blank">
+      <img src="https://loopback.io/images/branding/powered-by-loopback/blue/powered-by-loopback-sm.png" />
+    </a>
+  </footer>
+</body>
+
+</html>
diff --git a/examples/access-control-migration/src/__tests__/acceptance/project.acceptance.ts b/examples/access-control-migration/src/__tests__/acceptance/project.acceptance.ts
new file mode 100644
index 000000000000..d5433dc581d3
--- /dev/null
+++ b/examples/access-control-migration/src/__tests__/acceptance/project.acceptance.ts
@@ -0,0 +1,197 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {AnyObject} from '@loopback/repository';
+import {
+  Client,
+  createRestAppClient,
+  givenHttpServerConfig,
+} from '@loopback/testlab';
+import {AccessControlApplication} from '../../';
+
+describe('AccessControlApplication - permissions', () => {
+  let app: AccessControlApplication;
+  let client: Client;
+  let token: string;
+
+  before(givenRunningApplication);
+  before(() => {
+    client = createRestAppClient(app);
+  });
+  after(async () => {
+    process.env.SEED_DATA = undefined;
+    await app.stop();
+  });
+
+  const USER_CREDENTIAL_MAPPING: AnyObject = {
+    admin: ['bob@projects.com', 'opensesame'],
+    owner: ['john@doe.com', 'opensesame'],
+    team: ['jane@doe.com', 'opensesame'],
+  };
+
+  context('admin', () => {
+    const permissions = {
+      list: true,
+      view: true,
+      balance: false,
+      donate: true,
+      withdraw: false,
+    };
+    testPermission('admin', permissions);
+  });
+
+  context('owner', () => {
+    const permissions = {
+      list: true,
+      view: false,
+      balance: true,
+      donate: true,
+      withdraw: true,
+    };
+    testPermission('owner', permissions);
+  });
+
+  context('team-member', () => {
+    const permissions = {
+      list: true,
+      view: false,
+      balance: true,
+      donate: true,
+      withdraw: false,
+    };
+    testPermission('team', permissions);
+  });
+
+  context('anonymous', () => {
+    const permissions = {
+      list: true,
+      view: false,
+      balance: false,
+      donate: false,
+      withdraw: false,
+    };
+    testPermission('anonymous', permissions);
+  });
+
+  /**
+   * Test a role's permission when visit the 5 endpoints in the
+   * project controller
+   * @param role
+   * @param permissions
+   */
+  function testPermission(
+    role: string,
+    permissions: {[operation: string]: boolean},
+  ) {
+    it(`role ${role} login successfully`, async () => {
+      const credentials = USER_CREDENTIAL_MAPPING[role];
+      // for anonymous user
+      if (!credentials) return;
+
+      const res = await client
+        .post('/users/login')
+        .send({email: credentials[0], password: credentials[1]})
+        .expect(200);
+
+      token = res.body.token;
+    });
+
+    it(`list-projects returns ${permissions.list} for role ${role}`, async () => {
+      if (role === 'anonymous') {
+        await client.get('/list-projects').expect(200);
+        return;
+      }
+
+      await client
+        .get('/list-projects')
+        .set('Authorization', 'Bearer ' + token)
+        .expect(200);
+    });
+
+    it(`view returns ${permissions.view} for role ${role}`, async () => {
+      const expectedStatus = permissions.view ? 200 : 401;
+
+      if (role === 'anonymous') {
+        await client.get('/view-all-projects').expect(expectedStatus);
+        return;
+      }
+
+      await client
+        .get('/view-all-projects')
+        .set('Authorization', 'Bearer ' + token)
+        .expect(expectedStatus);
+    });
+
+    it(`show-balance returns ${permissions.balance} for role ${role}`, async () => {
+      const expectedStatus = permissions.balance ? 200 : 401;
+
+      if (role === 'anonymous') {
+        await client.get('/projects/1/show-balance').expect(expectedStatus);
+        return;
+      }
+
+      await client
+        .get('/projects/1/show-balance')
+        .set('Authorization', 'Bearer ' + token)
+        .expect(expectedStatus);
+    });
+
+    it(`donate returns ${permissions.donate} for role ${role}`, async () => {
+      const expectedStatus = permissions.donate ? 204 : 401;
+
+      if (role === 'anonymous') {
+        await client.patch('/projects/1/donate').expect(expectedStatus);
+        return;
+      }
+
+      await client
+        .patch('/projects/1/donate')
+        .set('Authorization', 'Bearer ' + token)
+        .expect(expectedStatus);
+    });
+
+    it(`withdraw returns ${permissions.withdraw} for role ${role}`, async () => {
+      const expectedStatus = permissions.withdraw ? 204 : 401;
+
+      if (role === 'anonymous') {
+        await client.patch('/projects/1/withdraw').expect(expectedStatus);
+        return;
+      }
+
+      await client
+        .patch('/projects/1/withdraw')
+        .set('Authorization', 'Bearer ' + token)
+        .expect(expectedStatus);
+    });
+  }
+
+  /*
+   ============================================================================
+   TEST HELPERS
+   These functions help simplify setup of your test fixtures so that your tests
+   can:
+   - operate on a "clean" environment each time (a fresh in-memory database)
+   - avoid polluting the test with large quantities of setup logic to keep
+   them clear and easy to read
+   - keep them DRY (who wants to write the same stuff over and over?)
+   ============================================================================
+   */
+
+  async function givenRunningApplication() {
+    process.env.SEED_DATA = '1';
+    app = new AccessControlApplication({
+      rest: givenHttpServerConfig(),
+    });
+
+    app.bind('datasources.config.db').to({
+      name: 'db',
+      connector: 'memory',
+    });
+
+    await app.boot();
+    // Start Application
+    await app.start();
+  }
+});
diff --git a/examples/access-control-migration/src/application.ts b/examples/access-control-migration/src/application.ts
new file mode 100644
index 000000000000..1f8d71fa2a81
--- /dev/null
+++ b/examples/access-control-migration/src/application.ts
@@ -0,0 +1,114 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {
+  AuthenticationComponent,
+  registerAuthenticationStrategy,
+} from '@loopback/authentication';
+import {
+  AuthorizationComponent,
+  AuthorizationTags,
+} from '@loopback/authorization';
+import {BootMixin} from '@loopback/boot';
+import {ApplicationConfig, BindingKey} from '@loopback/core';
+import {RepositoryMixin} from '@loopback/repository';
+import {RestApplication} from '@loopback/rest';
+import {RestExplorerComponent} from '@loopback/rest-explorer';
+import {ServiceMixin} from '@loopback/service-proxy';
+import path from 'path';
+import {
+  TokenServiceBindings,
+  TokenServiceConstants,
+  UserServiceBindings,
+} from './keys';
+import {MySequence} from './sequence';
+import {CasbinAuthorizationProvider} from './services/casbin.authorizer';
+import {getCasbinEnforcerByName} from './services/casbin.enforcers';
+import {JWTAuthenticationStrategy} from './services/jwt.auth.strategy';
+import {JWTService} from './services/jwt.service';
+import {SECURITY_SCHEME_SPEC} from './services/security.spec';
+import {MyUserService} from './services/user.service';
+
+/**
+ * Information from package.json
+ */
+export interface PackageInfo {
+  name: string;
+  version: string;
+  description: string;
+}
+export const PackageKey = BindingKey.create<PackageInfo>('application.package');
+
+export class AccessControlApplication extends BootMixin(
+  ServiceMixin(RepositoryMixin(RestApplication)),
+) {
+  constructor(options: ApplicationConfig = {}) {
+    super(options);
+
+    // Set up the custom sequence
+    this.sequence(MySequence);
+
+    // Set up default home page
+    this.static('/', path.join(__dirname, '../public'));
+
+    this.setUpBindings();
+    this.addSecuritySpec();
+
+    this.component(RestExplorerComponent);
+    // Bind authentication component related elements
+    this.component(AuthenticationComponent);
+    this.component(AuthorizationComponent);
+
+    this.projectRoot = __dirname;
+    // Customize @loopback/boot Booter Conventions here
+    this.bootOptions = {
+      controllers: {
+        // Customize ControllerBooter Conventions here
+        dirs: ['controllers'],
+        extensions: ['.controller.js'],
+        nested: true,
+      },
+    };
+  }
+
+  setUpBindings(): void {
+    this.bind(TokenServiceBindings.TOKEN_SECRET).to(
+      TokenServiceConstants.TOKEN_SECRET_VALUE,
+    );
+    this.bind(TokenServiceBindings.TOKEN_EXPIRES_IN).to(
+      TokenServiceConstants.TOKEN_EXPIRES_IN_VALUE,
+    );
+    this.bind(TokenServiceBindings.TOKEN_SERVICE).toClass(JWTService);
+
+    this.bind(UserServiceBindings.USER_SERVICE).toClass(MyUserService);
+
+    // authorization
+    this.bind('casbin.enforcer.factory').to(getCasbinEnforcerByName);
+    this.bind('authorizationProviders.casbin-provider')
+      .toProvider(CasbinAuthorizationProvider)
+      .tag(AuthorizationTags.AUTHORIZER);
+
+    // authentication
+    registerAuthenticationStrategy(this, JWTAuthenticationStrategy);
+  }
+
+  addSecuritySpec(): void {
+    this.api({
+      openapi: '3.0.0',
+      info: {
+        title: 'access-control-example',
+        version: require('.././package.json').version,
+      },
+      paths: {},
+      components: {securitySchemes: SECURITY_SCHEME_SPEC},
+      security: [
+        {
+          jwt: [],
+        },
+      ],
+      servers: [{url: '/'}],
+    });
+  }
+}
diff --git a/examples/access-control-migration/src/controllers/index.ts b/examples/access-control-migration/src/controllers/index.ts
new file mode 100644
index 000000000000..138651cb3e56
--- /dev/null
+++ b/examples/access-control-migration/src/controllers/index.ts
@@ -0,0 +1,7 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+export * from './project.controller';
+export * from './user.controller';
diff --git a/examples/access-control-migration/src/controllers/project.controller.ts b/examples/access-control-migration/src/controllers/project.controller.ts
new file mode 100644
index 000000000000..1e677eae280f
--- /dev/null
+++ b/examples/access-control-migration/src/controllers/project.controller.ts
@@ -0,0 +1,159 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import _ from 'lodash';
+import {repository} from '@loopback/repository';
+import {param, get, getModelSchemaRef, patch} from '@loopback/rest';
+import {Project} from '../models';
+import {ProjectRepository} from '../repositories';
+import {authenticate} from '@loopback/authentication';
+import {authorize} from '@loopback/authorization';
+import {assignProjectInstanceId} from '../services/assign-project-instance-id.voter';
+
+// TBD: refactor the ACLs to a separate file
+const RESOURCE_NAME = 'project';
+const ACL_PROJECT = {
+  'view-all': {
+    resource: `${RESOURCE_NAME}*`,
+    scopes: ['view-all'],
+    allowedRoles: ['admin'],
+  },
+  'show-balance': {
+    resource: RESOURCE_NAME,
+    scopes: ['show-balance'],
+    allowedRoles: ['owner', 'team'],
+    voters: [assignProjectInstanceId],
+  },
+  donate: {
+    resource: RESOURCE_NAME,
+    scopes: ['donate'],
+    allowedRoles: ['admin', 'owner', 'team'],
+    voters: [assignProjectInstanceId],
+  },
+  withdraw: {
+    resource: RESOURCE_NAME,
+    scopes: ['withdraw'],
+    allowedRoles: ['owner'],
+    voters: [assignProjectInstanceId],
+  },
+};
+
+// TODO: add other CRUD methods and corresponding ACL
+export class ProjectController {
+  constructor(
+    @repository(ProjectRepository)
+    public projectRepository: ProjectRepository,
+  ) {}
+
+  // LIST PROJECTS (balance is not public)
+  @get('/list-projects', {
+    responses: {
+      '200': {
+        description: 'List all the project model instances without balance',
+        content: {
+          'application/json': {
+            schema: {
+              type: 'array',
+              items: getModelSchemaRef(Project, {
+                title: 'ProjectPublic',
+                exclude: ['balance'],
+              }),
+            },
+          },
+        },
+      },
+    },
+  })
+  async listProjects(): Promise<Omit<Project, 'balance'>[]> {
+    const projects = await this.projectRepository.find();
+    return projects.map(p => _.omit(p, 'balance'));
+  }
+
+  // VIWE ALL PROJECTS (including balance)
+  @get('/view-all-projects', {
+    responses: {
+      '200': {
+        description: 'Array of all Project model instances including balance',
+        content: {
+          'application/json': {
+            schema: {
+              type: 'array',
+              items: getModelSchemaRef(Project),
+            },
+          },
+        },
+      },
+    },
+  })
+  @authenticate('jwt')
+  @authorize(ACL_PROJECT['view-all'])
+  async viewAll(): Promise<Project[]> {
+    return this.projectRepository.find();
+  }
+
+  // SHOW BALANCE: get project by id
+  @get('/projects/{id}/show-balance', {
+    responses: {
+      '200': {
+        description: 'show balance of a project',
+        content: {
+          'application/json': {
+            schema: getModelSchemaRef(Project),
+          },
+        },
+      },
+    },
+  })
+  @authenticate('jwt')
+  @authorize(ACL_PROJECT['show-balance'])
+  async findById(@param.path.number('id') id: number): Promise<Project> {
+    return this.projectRepository.findById(id);
+  }
+
+  // DONATE BY ID
+  @patch('/projects/{id}/donate', {
+    responses: {
+      '204': {
+        description: 'Project donate success',
+      },
+    },
+  })
+  @authenticate('jwt')
+  @authorize(ACL_PROJECT.donate)
+  async donateById(
+    @param.path.number('id') id: number,
+    @param.query.number('amount') amount: number,
+  ): Promise<void> {
+    const project = await this.projectRepository.findById(id);
+    await this.projectRepository.updateById(id, {
+      balance: project.balance + amount,
+    });
+    // TBD: return new balance
+  }
+
+  // WITHDRAW BY ID
+  @patch('/projects/{id}/withdraw', {
+    responses: {
+      '204': {
+        description: 'Project withdraw success',
+      },
+    },
+  })
+  @authenticate('jwt')
+  @authorize(ACL_PROJECT.withdraw)
+  async withdrawById(
+    @param.path.number('id') id: number,
+    @param.query.number('amount') amount: number,
+  ): Promise<void> {
+    const project = await this.projectRepository.findById(id);
+    if (project.balance < amount) {
+      throw new Error('Balance is not enough.');
+    }
+    await this.projectRepository.updateById(id, {
+      balance: project.balance - amount,
+    });
+    // TBD: return new balance
+  }
+}
diff --git a/examples/access-control-migration/src/controllers/user.controller.ts b/examples/access-control-migration/src/controllers/user.controller.ts
new file mode 100644
index 000000000000..2d30d878c9d5
--- /dev/null
+++ b/examples/access-control-migration/src/controllers/user.controller.ts
@@ -0,0 +1,79 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+// Uncomment these imports to begin using these cool features!
+
+import {inject} from '@loopback/context';
+import {post, requestBody} from '@loopback/rest';
+import {Credentials} from '../services/user.service';
+import {UserServiceBindings, TokenServiceBindings} from '../keys';
+import {UserService, TokenService} from '@loopback/authentication';
+import {User} from '../models';
+
+const CredentialsSchema = {
+  type: 'object',
+  required: ['email', 'password'],
+  properties: {
+    email: {
+      type: 'string',
+      format: 'email',
+    },
+    password: {
+      type: 'string',
+      minLength: 8,
+    },
+  },
+};
+
+export const CredentialsRequestBody = {
+  description: 'The input of login function',
+  required: true,
+  content: {
+    'application/json': {schema: CredentialsSchema},
+  },
+};
+
+export class UserController {
+  constructor(
+    @inject(TokenServiceBindings.TOKEN_SERVICE)
+    public jwtService: TokenService,
+    @inject(UserServiceBindings.USER_SERVICE)
+    public userService: UserService<User, Credentials>,
+  ) {}
+
+  @post('/users/login', {
+    responses: {
+      '200': {
+        description: 'Token',
+        content: {
+          'application/json': {
+            schema: {
+              type: 'object',
+              properties: {
+                token: {
+                  type: 'string',
+                },
+              },
+            },
+          },
+        },
+      },
+    },
+  })
+  async login(
+    @requestBody(CredentialsRequestBody) credentials: Credentials,
+  ): Promise<{token: string}> {
+    // ensure the user exists, and the password is correct
+    const user = await this.userService.verifyCredentials(credentials);
+
+    // convert a User object into a UserProfile object (reduced set of properties)
+    const userProfile = this.userService.convertToUserProfile(user);
+
+    // create a JSON Web Token based on the user profile
+    const token = await this.jwtService.generateToken(userProfile);
+
+    return {token};
+  }
+}
diff --git a/examples/access-control-migration/src/datasources/db.datasource.config.json b/examples/access-control-migration/src/datasources/db.datasource.config.json
new file mode 100644
index 000000000000..a68f220be986
--- /dev/null
+++ b/examples/access-control-migration/src/datasources/db.datasource.config.json
@@ -0,0 +1,6 @@
+{
+  "name": "db",
+  "connector": "memory",
+  "localStorage": "",
+  "file": "./data/db.json"
+}
diff --git a/examples/access-control-migration/src/datasources/db.datasource.ts b/examples/access-control-migration/src/datasources/db.datasource.ts
new file mode 100644
index 000000000000..9556e316e852
--- /dev/null
+++ b/examples/access-control-migration/src/datasources/db.datasource.ts
@@ -0,0 +1,19 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {inject} from '@loopback/core';
+import {juggler} from '@loopback/repository';
+import config from './db.datasource.config.json';
+
+export class DbDataSource extends juggler.DataSource {
+  static dataSourceName = 'db';
+
+  constructor(
+    @inject('datasources.config.db', {optional: true})
+    dsConfig: object = config,
+  ) {
+    super(dsConfig);
+  }
+}
diff --git a/examples/access-control-migration/src/datasources/index.ts b/examples/access-control-migration/src/datasources/index.ts
new file mode 100644
index 000000000000..2ee03a3f0871
--- /dev/null
+++ b/examples/access-control-migration/src/datasources/index.ts
@@ -0,0 +1,6 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+export * from './db.datasource';
diff --git a/examples/access-control-migration/src/index.ts b/examples/access-control-migration/src/index.ts
new file mode 100644
index 000000000000..b17bafb04d4d
--- /dev/null
+++ b/examples/access-control-migration/src/index.ts
@@ -0,0 +1,24 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {AccessControlApplication} from './application';
+import {ApplicationConfig} from '@loopback/core';
+
+export async function main(options: ApplicationConfig = {}) {
+  const app = new AccessControlApplication(options);
+  await app.boot();
+  await app.start();
+
+  const url = app.restServer.url;
+  console.log(`Server is running at ${url}`);
+  return app;
+}
+
+// re-exports for our benchmark, not needed for the tutorial itself
+export {AccessControlApplication};
+
+export * from './models';
+export * from './repositories';
+export * from '@loopback/rest';
diff --git a/examples/access-control-migration/src/keys.ts b/examples/access-control-migration/src/keys.ts
new file mode 100644
index 000000000000..7b5d33132547
--- /dev/null
+++ b/examples/access-control-migration/src/keys.ts
@@ -0,0 +1,34 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {TokenService, UserService} from '@loopback/authentication';
+import {BindingKey} from '@loopback/context';
+import {User} from './models';
+import {Credentials} from './services/user.service';
+
+export namespace TokenServiceConstants {
+  export const TOKEN_SECRET_VALUE = 'myjwts3cr3t';
+  export const TOKEN_EXPIRES_IN_VALUE = '21600';
+}
+
+export namespace TokenServiceBindings {
+  export const TOKEN_SECRET = BindingKey.create<string>(
+    'authentication.jwt.secret',
+  );
+  export const TOKEN_EXPIRES_IN = BindingKey.create<string>(
+    'authentication.jwt.expires.in.seconds',
+  );
+  export const TOKEN_SERVICE = BindingKey.create<TokenService>(
+    'services.authentication.jwt.tokenservice',
+  );
+}
+
+export namespace UserServiceBindings {
+  export const USER_SERVICE = BindingKey.create<UserService<User, Credentials>>(
+    'services.user.service',
+  );
+}
+
+export const RESOURCE_ID = BindingKey.create<string>('resourceId');
diff --git a/examples/access-control-migration/src/models/index.ts b/examples/access-control-migration/src/models/index.ts
new file mode 100644
index 000000000000..3de593999985
--- /dev/null
+++ b/examples/access-control-migration/src/models/index.ts
@@ -0,0 +1,9 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+export * from './user.model';
+export * from './team.model';
+export * from './project.model';
+export * from './user-credentials.model';
diff --git a/examples/access-control-migration/src/models/project.model.ts b/examples/access-control-migration/src/models/project.model.ts
new file mode 100644
index 000000000000..5540d296938a
--- /dev/null
+++ b/examples/access-control-migration/src/models/project.model.ts
@@ -0,0 +1,47 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {Entity, model, property, belongsTo} from '@loopback/repository';
+import {User} from './user.model';
+
+@model({settings: {strict: false}})
+export class Project extends Entity {
+  @property({
+    type: 'number',
+    id: true,
+    generated: false,
+  })
+  id: number;
+
+  @property({
+    type: 'string',
+    required: true,
+  })
+  name: string;
+
+  @property({
+    type: 'number',
+    required: true,
+  })
+  balance: number;
+
+  @belongsTo(() => User)
+  ownerId: number;
+  // Define well-known properties here
+
+  // Indexer property to allow additional data
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  [prop: string]: any;
+
+  constructor(data?: Partial<Project>) {
+    super(data);
+  }
+}
+
+export interface ProjectRelations {
+  // describe navigational properties here
+}
+
+export type ProjectWithRelations = Project & ProjectRelations;
diff --git a/examples/access-control-migration/src/models/team.model.ts b/examples/access-control-migration/src/models/team.model.ts
new file mode 100644
index 000000000000..f78f9070bd07
--- /dev/null
+++ b/examples/access-control-migration/src/models/team.model.ts
@@ -0,0 +1,48 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {Entity, model, property} from '@loopback/repository';
+
+@model({settings: {strict: false}})
+export class Team extends Entity {
+  @property({
+    type: 'number',
+    id: true,
+    generated: false,
+  })
+  id: number;
+
+  @property({
+    type: 'number',
+    required: true,
+  })
+  ownerId: number;
+
+  // REFACTOR
+  // The members should be specified by relation
+  // instead of using an array of Ids
+  @property({
+    type: 'array',
+    itemType: 'number',
+    required: true,
+  })
+  memberIds: number[];
+
+  // Define well-known properties here
+
+  // Indexer property to allow additional data
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  [prop: string]: any;
+
+  constructor(data?: Partial<Team>) {
+    super(data);
+  }
+}
+
+export interface TeamRelations {
+  // describe navigational properties here
+}
+
+export type TeamWithRelations = Team & TeamRelations;
diff --git a/examples/access-control-migration/src/models/user-credentials.model.ts b/examples/access-control-migration/src/models/user-credentials.model.ts
new file mode 100644
index 000000000000..58eef1952273
--- /dev/null
+++ b/examples/access-control-migration/src/models/user-credentials.model.ts
@@ -0,0 +1,44 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {Entity, model, property} from '@loopback/repository';
+
+@model({settings: {strict: false}})
+export class UserCredentials extends Entity {
+  @property({
+    type: 'number',
+    id: true,
+  })
+  id: number;
+
+  @property({
+    type: 'string',
+    required: true,
+  })
+  password: string;
+
+  @property({
+    type: 'number',
+    required: true,
+  })
+  userId: number;
+
+  // Define well-known properties here
+
+  // Indexer property to allow additional data
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  [prop: string]: any;
+
+  constructor(data?: Partial<UserCredentials>) {
+    super(data);
+  }
+}
+
+export interface UserCredentialsRelations {
+  // describe navigational properties here
+}
+
+export type UserCredentialsWithRelations = UserCredentials &
+  UserCredentialsRelations;
diff --git a/examples/access-control-migration/src/models/user.model.ts b/examples/access-control-migration/src/models/user.model.ts
new file mode 100644
index 000000000000..d19c076401d9
--- /dev/null
+++ b/examples/access-control-migration/src/models/user.model.ts
@@ -0,0 +1,51 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {Entity, model, property, hasMany, hasOne} from '@loopback/repository';
+import {Team} from './team.model';
+import {UserCredentials} from './user-credentials.model';
+
+@model({settings: {strict: false}})
+export class User extends Entity {
+  @property({
+    type: 'number',
+    id: true,
+    generated: false,
+  })
+  id: number;
+
+  @property({
+    type: 'string',
+    required: true,
+  })
+  username: string;
+
+  @property({
+    type: 'string',
+    required: true,
+  })
+  email: string;
+
+  @hasMany(() => Team, {keyTo: 'ownerId'})
+  teams: Team[];
+
+  @hasOne(() => UserCredentials)
+  userCredentials: UserCredentials;
+  // Define well-known properties here
+
+  // Indexer property to allow additional data
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  [prop: string]: any;
+
+  constructor(data?: Partial<User>) {
+    super(data);
+  }
+}
+
+export interface UserRelations {
+  // describe navigational properties here
+}
+
+export type UserWithRelations = User & UserRelations;
diff --git a/examples/access-control-migration/src/observers/index.ts b/examples/access-control-migration/src/observers/index.ts
new file mode 100644
index 000000000000..80f8e95fd844
--- /dev/null
+++ b/examples/access-control-migration/src/observers/index.ts
@@ -0,0 +1,6 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+export * from './sample.observer';
diff --git a/examples/access-control-migration/src/observers/sample.observer.ts b/examples/access-control-migration/src/observers/sample.observer.ts
new file mode 100644
index 000000000000..44345005a04e
--- /dev/null
+++ b/examples/access-control-migration/src/observers/sample.observer.ts
@@ -0,0 +1,109 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {
+  Application,
+  CoreBindings,
+  inject,
+  lifeCycleObserver, // The decorator
+  LifeCycleObserver,
+} from '@loopback/core';
+import * as _ from 'lodash';
+import {ProjectRepository} from '../repositories/project.repository';
+import {TeamRepository} from '../repositories/team.repository';
+import {UserRepository} from '../repositories/user.repository';
+import {genSalt, hash} from 'bcryptjs';
+
+/**
+ * This class will be bound to the application as a `LifeCycleObserver` during
+ * `boot`
+ */
+@lifeCycleObserver('')
+export class SampleObserver implements LifeCycleObserver {
+  constructor(
+    @inject(CoreBindings.APPLICATION_INSTANCE) private app: Application,
+    @inject('repositories.ProjectRepository')
+    private projectRepo: ProjectRepository,
+    @inject('repositories.TeamRepository') private teamRepo: TeamRepository,
+    @inject('repositories.UserRepository') private userRepo: UserRepository,
+  ) {}
+
+  /**
+   * This method will be invoked when the application starts
+   */
+  async start(): Promise<void> {
+    // Add your logic for start
+    if (process.env.SEED_DATA) {
+      await this.createUsers();
+      await this.createProjects();
+      await this.createTeams();
+    }
+  }
+
+  /**
+   * This method will be invoked when the application stops
+   */
+  async stop(): Promise<void> {
+    // Add your logic for stop
+  }
+
+  async createUsers(): Promise<void> {
+    const hashedPassword = await this.hashPassword('opensesame', 10);
+    const users = [
+      {
+        id: 1,
+        username: 'John',
+        email: 'john@doe.com',
+        password: hashedPassword,
+      },
+      {
+        id: 2,
+        username: 'Jane',
+        email: 'jane@doe.com',
+        password: hashedPassword,
+      },
+      {
+        id: 3,
+        username: 'Bob',
+        email: 'bob@projects.com',
+        password: hashedPassword,
+      },
+    ];
+
+    for (const u of users) {
+      await this.userRepo.create(_.pick(u, ['id', 'email', 'username']));
+      await this.userRepo
+        .userCredentials(u.id)
+        .create({password: u.password, userId: u.id});
+    }
+  }
+
+  async createProjects(): Promise<void> {
+    const projects = [
+      {id: 1, name: 'project1', balance: 0, ownerId: 1},
+      {id: 2, name: 'project2', balance: 0, ownerId: 2},
+    ];
+
+    for (const p of projects) {
+      await this.projectRepo.create(p);
+    }
+  }
+
+  async createTeams(): Promise<void> {
+    const teams = [
+      {id: 1, ownerId: 1, memberIds: [1, 2]},
+      {id: 2, ownerId: 2, memberIds: [2]},
+    ];
+
+    for (const t of teams) {
+      await this.teamRepo.create(t);
+    }
+  }
+
+  async hashPassword(password: string, rounds: number): Promise<string> {
+    const salt = await genSalt(rounds);
+    return hash(password, salt);
+  }
+}
diff --git a/examples/access-control-migration/src/repositories/index.ts b/examples/access-control-migration/src/repositories/index.ts
new file mode 100644
index 000000000000..be81a04a0068
--- /dev/null
+++ b/examples/access-control-migration/src/repositories/index.ts
@@ -0,0 +1,9 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+export * from './team.repository';
+export * from './user.repository';
+export * from './project.repository';
+export * from './user-credentials.repository';
diff --git a/examples/access-control-migration/src/repositories/project.repository.ts b/examples/access-control-migration/src/repositories/project.repository.ts
new file mode 100644
index 000000000000..ad80ec6f15ca
--- /dev/null
+++ b/examples/access-control-migration/src/repositories/project.repository.ts
@@ -0,0 +1,32 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {
+  DefaultCrudRepository,
+  repository,
+  BelongsToAccessor,
+} from '@loopback/repository';
+import {Project, ProjectRelations, User} from '../models';
+import {DbDataSource} from '../datasources';
+import {inject, Getter} from '@loopback/core';
+import {UserRepository} from './user.repository';
+
+export class ProjectRepository extends DefaultCrudRepository<
+  Project,
+  typeof Project.prototype.id,
+  ProjectRelations
+> {
+  public readonly user: BelongsToAccessor<User, typeof Project.prototype.id>;
+
+  constructor(
+    @inject('datasources.db') dataSource: DbDataSource,
+    @repository.getter('UserRepository')
+    protected userRepositoryGetter: Getter<UserRepository>,
+  ) {
+    super(Project, dataSource);
+    this.user = this.createBelongsToAccessorFor('owner', userRepositoryGetter);
+    this.registerInclusionResolver('user', this.user.inclusionResolver);
+  }
+}
diff --git a/examples/access-control-migration/src/repositories/team.repository.ts b/examples/access-control-migration/src/repositories/team.repository.ts
new file mode 100644
index 000000000000..e1c7c686617c
--- /dev/null
+++ b/examples/access-control-migration/src/repositories/team.repository.ts
@@ -0,0 +1,19 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {DefaultCrudRepository} from '@loopback/repository';
+import {Team, TeamRelations} from '../models';
+import {DbDataSource} from '../datasources';
+import {inject} from '@loopback/core';
+
+export class TeamRepository extends DefaultCrudRepository<
+  Team,
+  typeof Team.prototype.id,
+  TeamRelations
+> {
+  constructor(@inject('datasources.db') dataSource: DbDataSource) {
+    super(Team, dataSource);
+  }
+}
diff --git a/examples/access-control-migration/src/repositories/user-credentials.repository.ts b/examples/access-control-migration/src/repositories/user-credentials.repository.ts
new file mode 100644
index 000000000000..6907183a403e
--- /dev/null
+++ b/examples/access-control-migration/src/repositories/user-credentials.repository.ts
@@ -0,0 +1,19 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {DefaultCrudRepository} from '@loopback/repository';
+import {UserCredentials, UserCredentialsRelations} from '../models';
+import {DbDataSource} from '../datasources';
+import {inject} from '@loopback/core';
+
+export class UserCredentialsRepository extends DefaultCrudRepository<
+  UserCredentials,
+  typeof UserCredentials.prototype.id,
+  UserCredentialsRelations
+> {
+  constructor(@inject('datasources.db') dataSource: DbDataSource) {
+    super(UserCredentials, dataSource);
+  }
+}
diff --git a/examples/access-control-migration/src/repositories/user.repository.ts b/examples/access-control-migration/src/repositories/user.repository.ts
new file mode 100644
index 000000000000..dad9dc35feb2
--- /dev/null
+++ b/examples/access-control-migration/src/repositories/user.repository.ts
@@ -0,0 +1,70 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {
+  DefaultCrudRepository,
+  repository,
+  HasManyRepositoryFactory,
+  HasOneRepositoryFactory,
+} from '@loopback/repository';
+import {User, UserRelations, Team, UserCredentials} from '../models';
+import {DbDataSource} from '../datasources';
+import {inject, Getter} from '@loopback/core';
+import {TeamRepository} from './team.repository';
+import {UserCredentialsRepository} from './user-credentials.repository';
+
+export class UserRepository extends DefaultCrudRepository<
+  User,
+  typeof User.prototype.id,
+  UserRelations
+> {
+  public readonly teams: HasManyRepositoryFactory<
+    Team,
+    typeof User.prototype.id
+  >;
+
+  public readonly userCredentials: HasOneRepositoryFactory<
+    UserCredentials,
+    typeof User.prototype.id
+  >;
+
+  constructor(
+    @inject('datasources.db') dataSource: DbDataSource,
+    @repository.getter('TeamRepository')
+    protected teamRepositoryGetter: Getter<TeamRepository>,
+    @repository.getter('UserCredentialsRepository')
+    protected userCredentialsRepositoryGetter: Getter<
+      UserCredentialsRepository
+    >,
+  ) {
+    super(User, dataSource);
+    this.userCredentials = this.createHasOneRepositoryFactoryFor(
+      'userCredentials',
+      userCredentialsRepositoryGetter,
+    );
+    this.registerInclusionResolver(
+      'userCredentials',
+      this.userCredentials.inclusionResolver,
+    );
+    this.teams = this.createHasManyRepositoryFactoryFor(
+      'teams',
+      teamRepositoryGetter,
+    );
+    this.registerInclusionResolver('teams', this.teams.inclusionResolver);
+  }
+
+  async findCredentials(
+    userId: typeof User.prototype.id,
+  ): Promise<UserCredentials | undefined> {
+    try {
+      return await this.userCredentials(userId).get();
+    } catch (err) {
+      if (err.code === 'ENTITY_NOT_FOUND') {
+        return undefined;
+      }
+      throw err;
+    }
+  }
+}
diff --git a/examples/access-control-migration/src/sequence.ts b/examples/access-control-migration/src/sequence.ts
new file mode 100644
index 000000000000..4dbe29f00df5
--- /dev/null
+++ b/examples/access-control-migration/src/sequence.ts
@@ -0,0 +1,59 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {Context, inject} from '@loopback/context';
+import {
+  FindRoute,
+  InvokeMethod,
+  ParseParams,
+  Reject,
+  RequestContext,
+  RestBindings,
+  Send,
+  SequenceHandler,
+} from '@loopback/rest';
+import {
+  AuthenticationBindings,
+  AuthenticateFn,
+  AUTHENTICATION_STRATEGY_NOT_FOUND,
+  USER_PROFILE_NOT_FOUND,
+} from '@loopback/authentication';
+
+const SequenceActions = RestBindings.SequenceActions;
+
+export class MySequence implements SequenceHandler {
+  constructor(
+    @inject(RestBindings.Http.CONTEXT) public ctx: Context,
+    @inject(SequenceActions.FIND_ROUTE) protected findRoute: FindRoute,
+    @inject(SequenceActions.PARSE_PARAMS) protected parseParams: ParseParams,
+    @inject(SequenceActions.INVOKE_METHOD) protected invoke: InvokeMethod,
+    @inject(SequenceActions.SEND) public send: Send,
+    @inject(SequenceActions.REJECT) public reject: Reject,
+    @inject(AuthenticationBindings.AUTH_ACTION)
+    protected authenticateRequest: AuthenticateFn,
+  ) {}
+
+  async handle(context: RequestContext) {
+    try {
+      const {request, response} = context;
+      const route = this.findRoute(request);
+
+      //call authentication action
+      await this.authenticateRequest(request);
+
+      const args = await this.parseParams(request, route);
+      const result = await this.invoke(route, args);
+      this.send(response, result);
+    } catch (error) {
+      if (
+        error.code === AUTHENTICATION_STRATEGY_NOT_FOUND ||
+        error.code === USER_PROFILE_NOT_FOUND
+      ) {
+        Object.assign(error, {statusCode: 401 /* Unauthorized */});
+      }
+      this.reject(context, error);
+    }
+  }
+}
diff --git a/examples/access-control-migration/src/services/assign-project-instance-id.voter.ts b/examples/access-control-migration/src/services/assign-project-instance-id.voter.ts
new file mode 100644
index 000000000000..b458eee48a7b
--- /dev/null
+++ b/examples/access-control-migration/src/services/assign-project-instance-id.voter.ts
@@ -0,0 +1,48 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {
+  AuthorizationContext,
+  AuthorizationDecision,
+  AuthorizationMetadata,
+} from '@loopback/authorization';
+import {RESOURCE_ID} from '../keys';
+
+/**
+ * Instance level authorizer for known endpoints
+ * - 'projects/{id}/show-balance'
+ * - 'projects/{id}/donate'
+ * - 'projects/{id}/withdraw'
+ * This function is used to modify the authorization context.
+ * It is not used for making a decision, so just returns ABSTAIN
+ * @param authorizationCtx
+ * @param metadata
+ */
+export async function assignProjectInstanceId(
+  authorizationCtx: AuthorizationContext,
+  metadata: AuthorizationMetadata,
+) {
+  const projectId = authorizationCtx.invocationContext.args[0];
+  const resourceId = getResourceName(
+    metadata.resource ?? authorizationCtx.resource,
+    projectId,
+  );
+  // resourceId will override the resource name from metadata
+  authorizationCtx.invocationContext.bind(RESOURCE_ID).to(resourceId);
+  return AuthorizationDecision.ABSTAIN;
+}
+
+/**
+ * Generate the resource name according to the naming convention
+ * in casbin policy
+ * @param resource resource name
+ * @param id resource instance's id
+ */
+function getResourceName(resource: string, id?: number): string {
+  // instance level name
+  if (id) return `${resource}${id}`;
+  // class level name
+  return `${resource}*`;
+}
diff --git a/examples/access-control-migration/src/services/casbin.authorizer.ts b/examples/access-control-migration/src/services/casbin.authorizer.ts
new file mode 100644
index 000000000000..5bc31df97d63
--- /dev/null
+++ b/examples/access-control-migration/src/services/casbin.authorizer.ts
@@ -0,0 +1,87 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {
+  AuthorizationContext,
+  AuthorizationDecision,
+  AuthorizationMetadata,
+  AuthorizationRequest,
+  Authorizer,
+} from '@loopback/authorization';
+import {inject, Provider} from '@loopback/core';
+import * as casbin from 'casbin';
+import {RESOURCE_ID} from '../keys';
+const debug = require('debug')('loopback:example:acl');
+const DEFAULT_SCOPE = 'execute';
+
+// Class level authorizer
+export class CasbinAuthorizationProvider implements Provider<Authorizer> {
+  constructor(
+    @inject('casbin.enforcer.factory')
+    private enforcerFactory: (name: string) => Promise<casbin.Enforcer>,
+  ) {}
+
+  /**
+   * @returns authenticateFn
+   */
+  value(): Authorizer {
+    return this.authorize.bind(this);
+  }
+
+  async authorize(
+    authorizationCtx: AuthorizationContext,
+    metadata: AuthorizationMetadata,
+  ): Promise<AuthorizationDecision> {
+    const subject = this.getUserName(authorizationCtx.principals[0].id);
+    const resourceId = await authorizationCtx.invocationContext.get(
+      RESOURCE_ID,
+      {optional: true},
+    );
+    const object = resourceId ?? metadata.resource ?? authorizationCtx.resource;
+
+    const request: AuthorizationRequest = {
+      subject,
+      object,
+      action: (metadata.scopes && metadata.scopes[0]) || DEFAULT_SCOPE,
+    };
+
+    const allowedRoles = metadata.allowedRoles;
+
+    if (!allowedRoles) return AuthorizationDecision.ALLOW;
+    if (allowedRoles.length < 1) return AuthorizationDecision.DENY;
+
+    let allow = false;
+
+    // An optimization for ONLY searching among the allowed roles' policies
+    for (const role of allowedRoles) {
+      const enforcer = await this.enforcerFactory(role);
+
+      const allowedByRole = await enforcer.enforce(
+        request.subject,
+        request.object,
+        request.action,
+      );
+
+      debug(`authorizer role: ${role}, result: ${allowedByRole}`);
+      if (allowedByRole) {
+        allow = true;
+        break;
+      }
+    }
+
+    debug('final result: ', allow);
+
+    if (allow) return AuthorizationDecision.ALLOW;
+    else if (allow === false) return AuthorizationDecision.DENY;
+    return AuthorizationDecision.ABSTAIN;
+  }
+
+  // Generate the user name according to the naming convention
+  // in casbin policy
+  // A user's name would be `u${id}`
+  getUserName(id: number): string {
+    return `u${id}`;
+  }
+}
diff --git a/examples/access-control-migration/src/services/casbin.enforcers.ts b/examples/access-control-migration/src/services/casbin.enforcers.ts
new file mode 100644
index 000000000000..75a2802faf4e
--- /dev/null
+++ b/examples/access-control-migration/src/services/casbin.enforcers.ts
@@ -0,0 +1,34 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import * as casbin from 'casbin';
+import path from 'path';
+
+const POLICY_PATHS = {
+  admin: '../../fixtures/casbin/rbac_policy.admin.csv',
+  owner: '../../fixtures/casbin/rbac_policy.owner.csv',
+  team: '../../fixtures/casbin/rbac_policy.team_member.csv',
+};
+
+export async function getCasbinEnforcerByName(
+  name: string,
+): Promise<casbin.Enforcer | undefined> {
+  const CASBIN_ENFORCERS: {[key: string]: Promise<casbin.Enforcer>} = {
+    admin: createEnforcerByRole(POLICY_PATHS.admin),
+    owner: createEnforcerByRole(POLICY_PATHS.owner),
+    team: createEnforcerByRole(POLICY_PATHS.team),
+  };
+  if (Object.prototype.hasOwnProperty.call(CASBIN_ENFORCERS, name))
+    return CASBIN_ENFORCERS[name];
+  return undefined;
+}
+
+export async function createEnforcerByRole(
+  policyPath: string,
+): Promise<casbin.Enforcer> {
+  const conf = path.resolve(__dirname, '../../fixtures/casbin/rbac_model.conf');
+  const policy = path.resolve(__dirname, policyPath);
+  return casbin.newEnforcer(conf, policy);
+}
diff --git a/examples/access-control-migration/src/services/index.ts b/examples/access-control-migration/src/services/index.ts
new file mode 100644
index 000000000000..e13d9c3be264
--- /dev/null
+++ b/examples/access-control-migration/src/services/index.ts
@@ -0,0 +1,4 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
diff --git a/examples/access-control-migration/src/services/jwt.auth.strategy.ts b/examples/access-control-migration/src/services/jwt.auth.strategy.ts
new file mode 100644
index 000000000000..60f9c519209a
--- /dev/null
+++ b/examples/access-control-migration/src/services/jwt.auth.strategy.ts
@@ -0,0 +1,50 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {inject} from '@loopback/context';
+import {HttpErrors, Request} from '@loopback/rest';
+import {AuthenticationStrategy, TokenService} from '@loopback/authentication';
+import {UserProfile} from '@loopback/security';
+import {TokenServiceBindings} from '../keys';
+
+export class JWTAuthenticationStrategy implements AuthenticationStrategy {
+  name = 'jwt';
+
+  constructor(
+    @inject(TokenServiceBindings.TOKEN_SERVICE)
+    public tokenService: TokenService,
+  ) {}
+
+  async authenticate(request: Request): Promise<UserProfile | undefined> {
+    const token: string = this.extractCredentials(request);
+    const userProfile: UserProfile = await this.tokenService.verifyToken(token);
+    return userProfile;
+  }
+
+  extractCredentials(request: Request): string {
+    if (!request.headers.authorization) {
+      throw new HttpErrors.Unauthorized(`Authorization header not found.`);
+    }
+
+    // for example : Bearer xxx.yyy.zzz
+    const authHeaderValue = request.headers.authorization;
+
+    if (!authHeaderValue.startsWith('Bearer')) {
+      throw new HttpErrors.Unauthorized(
+        `Authorization header is not of type 'Bearer'.`,
+      );
+    }
+
+    //split the string into 2 parts : 'Bearer ' and the `xxx.yyy.zzz`
+    const parts = authHeaderValue.split(' ');
+    if (parts.length !== 2)
+      throw new HttpErrors.Unauthorized(
+        `Authorization header value has too many parts. It must follow the pattern: 'Bearer xx.yy.zz' where xx.yy.zz is a valid JWT token.`,
+      );
+    const token = parts[1];
+
+    return token;
+  }
+}
diff --git a/examples/access-control-migration/src/services/jwt.service.ts b/examples/access-control-migration/src/services/jwt.service.ts
new file mode 100644
index 000000000000..e36b83d4b275
--- /dev/null
+++ b/examples/access-control-migration/src/services/jwt.service.ts
@@ -0,0 +1,77 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {inject} from '@loopback/context';
+import {HttpErrors} from '@loopback/rest';
+import {promisify} from 'util';
+import {TokenService} from '@loopback/authentication';
+import {UserProfile, securityId} from '@loopback/security';
+import {TokenServiceBindings} from '../keys';
+
+const jwt = require('jsonwebtoken');
+const signAsync = promisify(jwt.sign);
+const verifyAsync = promisify(jwt.verify);
+
+export class JWTService implements TokenService {
+  constructor(
+    @inject(TokenServiceBindings.TOKEN_SECRET)
+    private jwtSecret: string,
+    @inject(TokenServiceBindings.TOKEN_EXPIRES_IN)
+    private jwtExpiresIn: string,
+  ) {}
+
+  async verifyToken(token: string): Promise<UserProfile> {
+    if (!token) {
+      throw new HttpErrors.Unauthorized(
+        `Error verifying token : 'token' is null`,
+      );
+    }
+
+    let userProfile: UserProfile;
+
+    try {
+      // decode user profile from token
+      const decodedToken = await verifyAsync(token, this.jwtSecret);
+      // don't copy over  token field 'iat' and 'exp', nor 'email' to user profile
+      userProfile = Object.assign(
+        {[securityId]: '', name: ''},
+        {
+          [securityId]: decodedToken.id,
+          name: decodedToken.name,
+          id: decodedToken.id,
+        },
+      );
+    } catch (error) {
+      throw new HttpErrors.Unauthorized(
+        `Error verifying token : ${error.message}`,
+      );
+    }
+    return userProfile;
+  }
+
+  async generateToken(userProfile: UserProfile): Promise<string> {
+    if (!userProfile) {
+      throw new HttpErrors.Unauthorized(
+        'Error generating token : userProfile is null',
+      );
+    }
+    const userInfoForToken = {
+      id: userProfile[securityId],
+      name: userProfile.name,
+      email: userProfile.email,
+    };
+    // Generate a JSON Web Token
+    let token: string;
+    try {
+      token = await signAsync(userInfoForToken, this.jwtSecret, {
+        expiresIn: Number(this.jwtExpiresIn),
+      });
+    } catch (error) {
+      throw new HttpErrors.Unauthorized(`Error encoding token : ${error}`);
+    }
+
+    return token;
+  }
+}
diff --git a/examples/access-control-migration/src/services/security.spec.ts b/examples/access-control-migration/src/services/security.spec.ts
new file mode 100644
index 000000000000..20a63d6d988e
--- /dev/null
+++ b/examples/access-control-migration/src/services/security.spec.ts
@@ -0,0 +1,18 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {SecuritySchemeObject, ReferenceObject} from '@loopback/openapi-v3';
+
+export const OPERATION_SECURITY_SPEC = [{jwt: []}];
+export type SecuritySchemeObjects = {
+  [securityScheme: string]: SecuritySchemeObject | ReferenceObject;
+};
+export const SECURITY_SCHEME_SPEC: SecuritySchemeObjects = {
+  jwt: {
+    type: 'http',
+    scheme: 'bearer',
+    bearerFormat: 'JWT',
+  },
+};
diff --git a/examples/access-control-migration/src/services/user.service.ts b/examples/access-control-migration/src/services/user.service.ts
new file mode 100644
index 000000000000..ee94e9aaedff
--- /dev/null
+++ b/examples/access-control-migration/src/services/user.service.ts
@@ -0,0 +1,61 @@
+// Copyright IBM Corp. 2020. All Rights Reserved.
+// Node module: @loopback/example-access-control-migration
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {UserService} from '@loopback/authentication';
+import {repository} from '@loopback/repository';
+import {HttpErrors} from '@loopback/rest';
+import {securityId, UserProfile} from '@loopback/security';
+import {compare} from 'bcryptjs';
+import {User} from '../models/user.model';
+import {UserRepository} from '../repositories/user.repository';
+
+export type Credentials = {
+  email: string;
+  password: string;
+};
+
+export class MyUserService implements UserService<User, Credentials> {
+  constructor(
+    @repository(UserRepository) public userRepository: UserRepository,
+  ) {}
+
+  async verifyCredentials(credentials: Credentials): Promise<User> {
+    const invalidCredentialsError = 'Invalid email or password.';
+
+    const foundUser = await this.userRepository.findOne({
+      where: {email: credentials.email},
+    });
+    if (!foundUser) {
+      throw new HttpErrors.Unauthorized(invalidCredentialsError);
+    }
+
+    const credentialsFound = await this.userRepository.findCredentials(
+      foundUser.id,
+    );
+    if (!credentialsFound) {
+      throw new HttpErrors.Unauthorized(invalidCredentialsError);
+    }
+
+    const passwordMatched = await compare(
+      credentials.password,
+      credentialsFound.password,
+    );
+
+    if (!passwordMatched) {
+      throw new HttpErrors.Unauthorized(invalidCredentialsError);
+    }
+
+    return foundUser;
+  }
+
+  convertToUserProfile(user: User): UserProfile {
+    return {
+      [securityId]: user.id.toString(),
+      name: user.username,
+      id: user.id,
+      email: user.email,
+    };
+  }
+}
diff --git a/examples/access-control-migration/tsconfig.build.json b/examples/access-control-migration/tsconfig.build.json
new file mode 100644
index 000000000000..c7b8e49eaca5
--- /dev/null
+++ b/examples/access-control-migration/tsconfig.build.json
@@ -0,0 +1,9 @@
+{
+  "$schema": "http://json.schemastore.org/tsconfig",
+  "extends": "@loopback/build/config/tsconfig.common.json",
+  "compilerOptions": {
+    "outDir": "dist",
+    "rootDir": "src"
+  },
+  "include": ["src"]
+}