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“Hello world”: Your First Serverless Function

This is the basic example of how to get started with serverless functions, API endpoints, and the Serverless Framework. This example uses NodeJS for the function.

This is the serverless.yml file:

org: your-org
app: hello-world-endpoint
service: hello-world-endpoint

frameworkVersion: '2'

provider:
  name: aws
  runtime: nodejs12.x
  lambdaHashingVersion: '20201221'

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

This is the handler.js file:

"use strict";

module.exports.hello = async (event) => {  
  return {
    statusCode: 200,
    body: JSON.stringify(
      {
        message: "Nice work! Have a high five 👋!",
        input: event,
      },
      null,
      2
    ),
  };
};

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