Serverless HTTP Event

serverless-http-evemt.md

Serverless HTTP Event

There are 3 main types of Serverless HTTP events:

AWS Lambda Function URL

• Added Cost: 0
• Announcement: https://aws.amazon.com/blogs/aws/announcing-aws-lambda-function-urls-built-in-https-endpoints-for-single-function-microservices/
• Docs: https://docs.aws.amazon.com/lambda/latest/dg/urls-invocation.html

functions:
  hello:
    handler: handler.hello
    # Public by default
    url: true

The lambda doesn't support path on the deployment level, so you should do something like:

const { requestContext: { http: { method, path } }, body } = event
  if (method !== 'POST' || path !== '/foo') return { statusCode: 404 }

AWS REST API (API Gateway v1)

• Added Cost: ~$3.5/million requests
• Compare with v2: https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-vs-rest.html
• Docs: https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-develop-integrations-lambda.html
• Serverless Docs: https://www.serverless.com/framework/docs/providers/aws/events/apigateway

functions:
  hello:
    handler: handler.hello
    events:
      - http:
            method: GET
            path: /hello

AWS HTTP API (API Gateway v2)

• Added Cost: ~$1/million requests
• Compare with v1: https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-vs-rest.html
• Docs: https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-develop-integrations-lambda.html
• Serverless Docs: https://www.serverless.com/framework/docs/providers/aws/events/http-api

functions:
  hello:
    handler: handler.hello
    events:
      - httpApi:
            method: GET
            path: /hello