serverless.yml

# Welcome to Serverless!
#
# This file is the main config file for your service.
# It's very minimal at this point and uses default values.
# You can always add more config options for more control.
#
#
# For full config options, check the docs:
#    docs.serverless.com
#
# Happy Coding!


# AWS's service name, it creates a new stack with provided name + stage
service: eloy-aws-api-service

# custom variables
custom:
  devicesTableName: ${self:service}-${self:provider.stage}-devices
  devicesTableArn: # ARNs are addresses of deployed services in AWS space
    Fn::Join:
    - ":"
    - - arn
      - aws
      - dynamodb
      - Ref: AWS::Region
      - Ref: AWS::AccountId
      - table/${self:custom.devicesTableName}

provider:
  name: aws
  runtime: go1.x 
  stage: dev # can be dev, master or what ever you want
  region: us-east-2
  environment:
    DEVICES_TABLE_NAME: ${self:custom.devicesTableName}

  iamRoleStatements: # Defines what other AWS services our lambda functions can access
    - Effect: Allow # Allow access to DynamoDB tables
      Action:
        - dynamodb:Scan
        - dynamodb:GetItem
        - dynamodb:PutItem
        - dynamodb:UpdateItem
        - dynamodb:DeleteItem
      Resource:
        - ${self:custom.devicesTableArn}


package:
 individually: true
 exclude:
   - ./**

# lambda functions
functions:
  addDevice:
    handler: bin/handlers/addDevice
    package:
      include:
        - ./bin/handlers/addDevice
    events:
      - http:
          path: devices
          method: post
          cors: true
  getDeviceById:
    handler: bin/handlers/getDeviceById
    package:
      include:
        - ./bin/handlers/getDeviceById
    events:
      - http:
          path: devices/{id}
          method: get
          cors: true


# defining DynamoDB structures
resources:
  Resources:
    eloyDevicesTable:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: ${self:custom.devicesTableName}
        ProvisionedThroughput:
          ReadCapacityUnits:  1
          WriteCapacityUnits: 1
        AttributeDefinitions:
          - AttributeName: id
            AttributeType: S
        KeySchema:
          - AttributeName: id
            KeyType: HASH