play-with-lambda-micro

Run zeit/micro based app on top of AWS Lambda and Amazon API Gateway using aws-serverless-express

Getting started

SEE: example

const { serve, proxy, withEventContext } = require('micro-lambda')
const micro = require('micro')

// Handle HTTP Request with micro.
const server = serve(micro(withEventContext(async (req, res) => {
  if (req.method === 'POST') {
    return micro.json(req)
  }
  return { hoge: 'fuga' }
})))

exports.handler = (event, context, cb) => {
  context.callbackWaitsForEmptyEventLoop = false
  proxy(server, event, context, cb)
}

How to run

Setup

# Install dependencies
npm i

# Copy dependencies to child.
cp -r ./node_modules ./functions/example

A. Local run micro

# Start dev server
npm run dev

B. Local run lambda (by docker-lambda)

# Simulate GET request
cat ./functions/example/__tests__/events/api-gw.json | docker run --rm -v "$PWD":/var/task -i -e DOCKER_LAMBDA_USE_STDIN=1 lambci/lambda:nodejs8.10 functions/example/index.handler

# Simulate POST request
cat ./functions/example/__tests__/events/api-gw-post.json | docker run --rm -v "$PWD":/var/task -i -e DOCKER_LAMBDA_USE_STDIN=1 lambci/lambda:nodejs8.10 functions/example/index.handler

How to deploy

Prerequisites

• apex

Steps

You must setup example as your AWS Profile(at ~/.aws/credentials && ~/.aws/config).

# Init project.json
apex --profile example init 

# Initialize infra(API Gateway)
apex --profile example infra init

# Dry run for see changes.
apex --profile example deploy -D

# Do deploy lambda.
apex --profile example deploy

# Dry run for see changes.
apex --profile example infra plan
apex --profile example infra apply

Steps to destroy

# Destroy infrastructure.
apex --profile example infra destroy

# Delete lambda
apex --profile example delete

Credits

Thanks to original authors of aws-serverless-express package.

LICENSE

MIT License

SEE: LICENSE