template.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: Serverless patterns - Amazon API Gateway to AWS Lambda to Amazon DynamoDB

Parameters:
  ENVIRONMENT:
    Type: String
    Description: AWS Environment where code is being executed (dev or prod).
    Default: "dev"
  DYNAMO_URL:
    Type: String
    Description: AWS local DynamoDB instance URI (will only be used if ENVIRONMENT is "dev")
    # Default: "http://localhost:8000"
    Default: "http://host.docker.internal:8000"
  TABLE_NAME:
    Type: String
    Description: DynamoDB table name.
    Default: "todo_1"

Resources:
  Index:
    Type: AWS::Serverless::Function
    Properties:
      Handler: index.handler
      Runtime: python3.9
      Timeout: 10
      CodeUri: src/
      Policies:
        DynamoDBCrudPolicy:
          TableName: !Ref TABLE_NAME
      Environment:
        Variables:
          ENVIRONMENT: !Ref ENVIRONMENT
          DYNAMO_URL: !Ref DYNAMO_URL
          TABLE_NAME: !Ref TABLE_NAME
      Events:
        ApiEvent:
          Type: Api
          Properties:
            Path: /todos/list
            Method: GET
  
  Create:
    Type: AWS::Serverless::Function
    Properties:
      Handler: create.handler
      Runtime: python3.9
      Timeout: 10
      CodeUri: src/
      Policies:
        DynamoDBCrudPolicy:
          TableName: !Ref TABLE_NAME
      Environment:
        Variables:
          ENVIRONMENT: !Ref ENVIRONMENT
          DYNAMO_URL: !Ref DYNAMO_URL
          TABLE_NAME: !Ref TABLE_NAME
      Events:
        ApiEvent:
          Type: Api
          Properties:
            Path: /todos/create
            Method: POST

  Delete:
    Type: AWS::Serverless::Function
    Properties:
      Handler: delete.handler
      Runtime: python3.9
      Timeout: 10
      CodeUri: src/
      Policies:
        DynamoDBCrudPolicy:
          TableName: !Ref TABLE_NAME
      Environment:
        Variables:
          ENVIRONMENT: !Ref ENVIRONMENT
          DYNAMO_URL: !Ref DYNAMO_URL
          TABLE_NAME: !Ref TABLE_NAME
      Events:
        ApiEvent:
          Type: Api
          Properties:
            Path: /todos/delete/{pk}
            Method: DELETE

  DynamoDBTable:
    Type: AWS::Serverless::SimpleTable
    Properties:
      TableName: ToDos
Outputs:
  EndpointUrl:
    Description: 'HTTP REST endpoint URL'
    Value: !Sub 'https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod'