readme.md

Running CoffeeScript on AWS Lambda

AWS Lambda does not have native support for running CoffeeScript. However, because you have any node module available to you, you can just using the coffee-script/register function to connect a CoffeeScript module to your AWS Lambda handler.

AWS Lambda function is configured as:

• File name: index.js
• Handler: handler

downloadData.coffee

AWS = require 'aws-sdk'
s3 = new AWS.S3()

bucketName = 'lambda-test'
region = 'us-east-1'
key = 'testData.json'

module.exports = (event, context) ->
    console.log JSON.stringify(event, null, 2)
    console.log 'From SNS:', event.Records[0].Sns.Message

    payload = {
        key: 'myTestData'
        event: event
    }

    s3.putObject {
        Bucket: bucketName
        Key: key
        ContentType: 'application/json'
        Body: JSON.stringify payload, null, 2
    }, (err) ->
        if err
            console.log 'Error uploading'
            console.log err
            context.fail err
            return

        console.log "Successfully uploaded to s3:#{region}:#{bucketName}/#{key}"
        context.succeed()

index.js

require('coffee-script/register')
exports.handler = require('./downloadData.coffee')

package.json

{
  "name": "lambdaTest",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "aws-sdk": "^2.1.29",
    "coffee-script": "^1.9.2"
  }
}