serverless.yml

service: receipt-processor

custom:
  config: ${file(env.yml):${opt:stage, self:provider.stage}}

provider:
  name: aws
  runtime: nodejs8.10
  profile: receipt-processor
  region: us-west-2
  iamRoleStatements:
    - Effect: Allow
      Action:
        - s3:GetObject
      Resource: "arn:aws:s3:::${self:custom.config.bucket_name}/*"

functions:
  receipt-processor:
    handler: handler.processEvent
    events:
      - s3:
          bucket: ${self:custom.config.bucket_name}
          event: s3:ObjectCreated:*
    environment:
      google_client_email: ${self:custom.config.google_client_email}
      google_private_key: ${self:custom.config.google_private_key}
      google_email_to_impersonate: ${self:custom.config.google_email_to_impersonate}
      receipt_folder_id: ${self:custom.config.receipt_folder_id}