From 77e51f30af75056cd835d7d27337136d47f6cae2 Mon Sep 17 00:00:00 2001
From: Samuel Hellawell <sshellawell@gmail.com>
Date: Tue, 5 Oct 2021 19:33:21 +0100
Subject: [PATCH 1/2] if requestBody required is false, allow empty requests

---
 src/middlewares/parsers/body.parse.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/middlewares/parsers/body.parse.ts b/src/middlewares/parsers/body.parse.ts
index fdbddf17..eb2161c1 100644
--- a/src/middlewares/parsers/body.parse.ts
+++ b/src/middlewares/parsers/body.parse.ts
@@ -57,6 +57,9 @@ export class BodySchemaParser {
     }
 
     if (!content) {
+      if (requestBody.required === false) { // user has explicitly set body required to false
+        return {};
+      }
       const msg =
         contentType.contentType === 'not_provided'
           ? 'media type not specified'

From 65626784073353fa084bbea839fcf7199299d1b1 Mon Sep 17 00:00:00 2001
From: Samuel Hellawell <sshellawell@gmail.com>
Date: Tue, 5 Oct 2021 20:25:11 +0100
Subject: [PATCH 2/2] add test

---
 src/middlewares/parsers/body.parse.ts | 6 ++++--
 test/optional-request-body.spec.ts    | 5 +++++
 test/optional-request-body.yaml       | 1 +
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/middlewares/parsers/body.parse.ts b/src/middlewares/parsers/body.parse.ts
index eb2161c1..e0aa76b3 100644
--- a/src/middlewares/parsers/body.parse.ts
+++ b/src/middlewares/parsers/body.parse.ts
@@ -57,11 +57,13 @@ export class BodySchemaParser {
     }
 
     if (!content) {
-      if (requestBody.required === false) { // user has explicitly set body required to false
+      // check if required is false, if so allow request when no content type is supplied
+      const contentNotProvided = contentType.contentType === 'not_provided';
+      if ((contentType.contentType === undefined || contentNotProvided) && requestBody.required === false) {
         return {};
       }
       const msg =
-        contentType.contentType === 'not_provided'
+        contentNotProvided
           ? 'media type not specified'
           : `unsupported media type ${contentType.contentType}`;
       throw new UnsupportedMediaType({ path: path, message: msg });
diff --git a/test/optional-request-body.spec.ts b/test/optional-request-body.spec.ts
index 9a0d2d58..f99aa8d6 100644
--- a/test/optional-request-body.spec.ts
+++ b/test/optional-request-body.spec.ts
@@ -32,6 +32,11 @@ describe(packageJson.name, () => {
       .set('Content-Type', 'application/json')
       .expect(201));
 
+  it('create document should return 201 with empty body', async () =>
+    request(app)
+      .post(`/documents`)
+      .expect(201));
+
   it('return 415', async () =>
     request(app)
       .post(`/documents`)
diff --git a/test/optional-request-body.yaml b/test/optional-request-body.yaml
index c86b3269..368adad4 100644
--- a/test/optional-request-body.yaml
+++ b/test/optional-request-body.yaml
@@ -10,6 +10,7 @@ paths:
     post:
       summary: Create a document
       requestBody:
+        required: false
         content:
           application/json:
             schema: