Our Serverless YML

serverless.yml

service: serverless-checkout # NOTE: update this with your service name

provider:
  name: aws
  runtime: nodejs8.10
  stage: prod
  memorySize: 256

package:
  include:
    - node_modules/square-connect/**
    - node_modules/superagent/**
  excludeDevDependencies: true

functions:
  checkout:
    environment:
      ACCESS_TOKEN: YOUR_ACCESS_TOKEN
      LOCATION_ID: YOUR_LOCATION_ID
    handler: handler.checkout
    events:
      - http:
          path: /checkout
          method: any