自訂回應範例 AWS SAM

您可以在 AWS SAM 範本中定義回應標頭，以自訂某些API閘道錯誤回應。要執行此操作，請使用「閘道響應對象」數据類型。

以下是建立DEFAULT_5XX錯誤自訂回應的 AWS SAM 範例範本。

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Resources:
  MyApi:
    Type: AWS::Serverless::Api
    Properties:
      StageName: Prod
      GatewayResponses:
        DEFAULT_5XX:
          ResponseParameters:
            Headers:
              Access-Control-Expose-Headers: "'WWW-Authenticate'"
              Access-Control-Allow-Origin: "'*'"
              ErrorHeader: "'MyCustomErrorHeader'"
          ResponseTemplates:
            application/json: "{\"message\": \"Error on the $context.resourcePath resource\" }"
              
  GetFunction:
    Type: AWS::Serverless::Function
    Properties:
      Runtime: python3.10
      Handler: index.handler
      InlineCode: |
        def handler(event, context):
          raise Exception('Check out the new response!')
      Events:
        GetResource:
          Type: Api
          Properties:
            Path: /error
            Method: get
            RestApiId: !Ref MyApi

如需API閘道回應的詳細資訊，請參閱閘道開發人員指南中的API閘道回應。API