Activities Examples

This sample shows use cases for Activities:

• makeHTTPRequest: Make an external HTTP request in an Activity (using axios).
• cancellableFetch: Make a cancellable HTTP request with cancellationSignal.
• doSomethingAsync: Complete an Activity async with AsyncCompletionClient.

More Activity samples are listed here.

Testing

• Mocha: Run the tests in src/mocha/ with:
  • npm test: run once
  • npm run test.watch: run when files change
  • npm run test.coverage: run with coverage report
• Jest: npm run jest runs tests outside the mocha/ directory:
  • src/workflows.test.ts
  • src/activities/make-http-request.test.ts

Running this sample

1. temporal server start-dev to start Temporal Server.
2. npm install to install dependencies.
3. npm run start.watch to start the Worker.
4. In another shell, npm run workflow to run the Workflow.

The Workflow should make an HTTP request to httpbin.org and then return:

The answer is 42