serverless/docs/providers/cloudflare/events/http.md

Read this on the main serverless docs site

Cloudflare Workers - HTTP Events

Serverless Yml

When creating a service your serverless yml will define which endpoint is used for your function and when you run the serverless invoke command.

# serverless.yml
...
functions:
  helloWorld:
    # What the script will be called on Cloudflare (this property value must match the function name one line above)
    name: helloWorld
    # The name of the script on your machine, omitting the .js file extension
    script: helloWorld
    events:
      - http:
          url: example.com/hello/user
          method: GET
          headers:
            greeting: hi

The events section in the yml above makes it so that the Function helloWorld will be used for request to the example.com/hello/user endpoint. This configuration would send a GET request with a header called greeting that has a value of hi to the example.com/hello/user endpoint when you run serverless invoke -f helloWorld.