Serverless AWS lambda

Config serverless with aws

serverless config credentials --provider aws --key <ACCESS_KEY_AWS> --secret <SECRET_KEY_AWS>

Init project

serverless create --template aws-nodejs --name cake-ordering-system

Define how to trigger lambda in serverless.yml

for example:

functions:
  createOrder:
    handler: handler.createOrder
    # trigger for lambda
    events:
      # http: stands for APIGateWay
      - http:
          path: /order
          method: post

Hanlder

In handler.js:

"use strict";

module.exports.createOrder = async (event) => {
  return {
    statusCode: 200,
    body: JSON.stringify({
      message: "Create Order",
      input: event,
    }),
  };
};

Deploy

sls deploy

Logs

sls logs -f <FUNCTION_NAME>
## sls logs -f notifyExternalParties

Clean up

sls remove