Node.js Cloud Events Function

Welcome to your new Node.js function project! The boilerplate function code can be found in index.js. This function is meant to respond to Cloud Events.

Local execution

After executing npm install, you can run this function locally by executing npm run local.

The runtime will expose three endpoints.

• / The endpoint for your function.
• /health/readiness The endpoint for a readiness health check
• /health/liveness The endpoint for a liveness health check

The health checks can be accessed in your browser at http://localhost:8080/health/readiness and http://localhost:8080/health/liveness. You can use curl to POST an event to the function endpoint:

curl -X POST -d '{"name": "Tiger", "customerId": "0123456789"}' \
  -H'Content-type: application/json' \
  -H'Ce-id: 1' \
  -H'Ce-source: cloud-event-example' \
  -H'Ce-type: dev.knative.example' \
  -H'Ce-specversion: 1.0' \
  http://localhost:8080

The readiness and liveness endpoints use overload-protection and will respond with HTTP 503 Service Unavailable with a Client-Retry header if your function is determined to be overloaded, based on the memory usage and event loop delay.

Testing

This function project includes a unit test and an integration test. All .js files in the test directory are run.

npm test