Setup topics & subscriptions required for running cascade message workers

This command is used to setup pubsub topics & subscriptions

How

Install

• from sources:

npm install
npm run build
npm link

• using NPM:

npm install -g @elmy-oss/init-pubsub-cli

Run

• when globally installed

init-pubsub --env=./example.local.env scripts/initPubSub/config.json

• explicit call using npm / npx

npx @elmy-oss/init-pubsub-cli ./scripts/initPubSub/config.json

Config

Environment variables

• PUBSUB_EMULATOR_HOST: is the host of the pubsub emulator (edit accordingly when port-forwarding from test envs)
• PUBSUB_PROJECT_ID: is the project id of the google pubsub project
• Please note that you have the option to use current shell's environment variables or to utilize an .env file. Additionally, you can specify an alternate dotenv file by using the --env=dotenv-file switch, as demonstrated in the Run section above.

Setup

• Either copy example.local.env or example.testenv.env to .env and edit accordingly
• or define environment variables PUBSUB_EMULATOR_HOST & PUBSUB_PROJECT_ID in your shell before running

Topics & subscription mappings are found in a config.json file

• an example is provided in example-config.json.

{
  "topic1-with-single-sub": ["topic1-sub1"],
  "topic2-with-subs": [
    "topic2-sub1",
    "topic2-sub2"
  ],
  "topic3-without-sub": []
}