AWS Lambda Powertools Python入門 ~ 第 6  回 EventHandler Utility - GraphQL 編

AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31
Description: >
  05_eventhandler_graphql_demo

  Sample SAM Template for 05_eventhandler_graphql_demo

Globals:
  Function:
    Timeout: 5
    Tracing: Active
    Environment:
      Variables:
        LOG_LEVEL: INFO
        POWERTOOLS_LOGGER_SAMPLE_RATE: 0.1
        POWERTOOLS_LOGGER_LOG_EVENT: true
        POWERTOOLS_SERVICE_NAME: sample_resolver

Resources:
  # Lambda function
  TodosFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: src/
      Handler: app.lambda_handler
      Runtime: python3.9
      Architectures:
        - x86_64

      # AWS Lambda Powertools for Python
      Layers:
        - !Sub arn:aws:lambda:${AWS::Region}:017000801446:layer:AWSLambdaPowertoolsPython:36

  # IAM Permissions and Roles
  AppSyncServiceRole:
    Type: "AWS::IAM::Role"
    Properties:
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Effect: "Allow"
            Principal:
              Service:
                - "appsync.amazonaws.com"
            Action:
              - "sts:AssumeRole"

  InvokeLambdaResolverPolicy:
    Type: "AWS::IAM::Policy"
    Properties:
      PolicyName: "DirectAppSyncLambda"
      PolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Effect: "Allow"
            Action: "lambda:invokeFunction"
            Resource:
              - !GetAtt TodosFunction.Arn
      Roles:
        - !Ref AppSyncServiceRole

  # GraphQL API
  TodosApi:
    Type: "AWS::AppSync::GraphQLApi"
    Properties:
      Name: TodosApi
      AuthenticationType: "API_KEY"
      XrayEnabled: true

  TodosApiKey:
    Type: AWS::AppSync::ApiKey
    Properties:
      ApiId: !GetAtt TodosApi.ApiId

  TodosApiSchema:
    Type: "AWS::AppSync::GraphQLSchema"
    Properties:
      ApiId: !GetAtt TodosApi.ApiId
      Definition: |
        schema {
            query:Query
        }

        type Query {
            getTodo(id: ID!): Todo
            listTodos: [Todo]
        }

        type Todo {
            id: ID!
            title: String
            description: String
            done: Boolean
        }

  # Lambda Direct Data Source and Resolver
  TodosFunctionDataSource:
    Type: "AWS::AppSync::DataSource"
    Properties:
      ApiId: !GetAtt TodosApi.ApiId
      Name: "HelloWorldLambdaDirectResolver"
      Type: "AWS_LAMBDA"
      ServiceRoleArn: !GetAtt AppSyncServiceRole.Arn
      LambdaConfig:
        LambdaFunctionArn: !GetAtt TodosFunction.Arn

  ListTodosResolver:
    Type: "AWS::AppSync::Resolver"
    Properties:
      ApiId: !GetAtt TodosApi.ApiId
      TypeName: "Query"
      FieldName: "listTodos"
      DataSourceName: !GetAtt TodosFunctionDataSource.Name

  GetTodoResolver:
    Type: "AWS::AppSync::Resolver"
    Properties:
      ApiId: !GetAtt TodosApi.ApiId
      TypeName: "Query"
      FieldName: "getTodo"
      DataSourceName: !GetAtt TodosFunctionDataSource.Name

Outputs:
  HelloWorldFunction:
    Description: "Hello World Lambda Function ARN"
    Value: !GetAtt TodosFunction.Arn

  HelloWorldAPI:
    Value: !GetAtt TodosApi.Arn

schema {
    query: Query
}

type Query {
    getTodo(id: ID!): Todo
    listTodos: [Todo]
}

type Todo {
    id: ID!
    userId: String
    title: String
    completed: Boolean
}