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Transform: AWS::Serverless-2016-10-31
Description: Hello world Direct Lambda Resolver
Globals:
Function:
Timeout: 5
Runtime: python3.12
Tracing: Active
Environment:
Variables:
# Powertools for AWS Lambda (Python) env vars: https://docs.powertools.aws.dev/lambda/python/latest/#environment-variables
POWERTOOLS_LOG_LEVEL: INFO
POWERTOOLS_LOGGER_SAMPLE_RATE: 0.1
POWERTOOLS_LOGGER_LOG_EVENT: true
POWERTOOLS_SERVICE_NAME: example
Resources:
TodosFunction:
Type: AWS::Serverless::Function
Properties:
Handler: getting_started_graphql_api_resolver.lambda_handler
CodeUri: ../src
Description: Sample Direct Lambda Resolver
# 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
DefinitionS3Location: ../src/getting_started_schema.graphql
Metadata:
cfn-lint:
config:
ignore_checks:
- W3002 # allow relative path in DefinitionS3Location
# 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
CreateTodoResolver:
Type: "AWS::AppSync::Resolver"
Properties:
ApiId: !GetAtt TodosApi.ApiId
TypeName: "Mutation"
FieldName: "createTodo"
DataSourceName: !GetAtt TodosFunctionDataSource.Name
Outputs:
TodosFunction:
Description: "Hello World Lambda Function ARN"
Value: !GetAtt TodosFunction.Arn
TodosApi:
Value: !GetAtt TodosApi.GraphQLUrl
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