How to configure asynchronous lambda invocation via API Gateway using SAM?
I have configured a lambda proxy integration with API Gateway using SAM specification and am invoking the lambda asynchronously by passing X-Amz-Invocation-Type: "'Event'" header
ApiGateway:
Type: AWS::Serverless::Api
Properties:
StageName: prod
DefinitionBody:
swagger: "2.0"
info:
title:
Ref: AWS::StackName
description: API endpoint for invoking LambdaFunction
version: 1.0.0
paths:
/items:
post:
consumes: ["application/json"]
produces: ["application/json"]
responses: {}
x-amazon-apigateway-integration:
type: "aws_proxy"
uri:
Fn::Sub: arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${LambdaFunction.Arn}/invocations
passthroughBehavior: "when_no_match"
httpMethod: "POST"
requestParameters:
integration.request.header.X-Amz-Invocation-Type: "'Event'"
The problem is that lambda is returning empty response(invoked async) so API Gateway is throwing following error
Wed Nov 14 08:03:14 UTC 2018 : Execution failed due to configuration error: Malformed Lambda proxy response
Wed Nov 14 08:03:14 UTC 2018 : Method completed with status: 502
Is this behaviour expected? Do I have to define responses explicitly? I do not want to throw 200 always because I also want to send bad request and unauthorized errors as well.What's the solution to avoid this problem?
amazon-web-services aws-lambda aws-api-gateway aws-sam
asked Nov 14 '18 at 8:07
himanshu219himanshu219
859
add a comment |
I have configured a lambda proxy integration with API Gateway using SAM specification and am invoking the lambda asynchronously by passing X-Amz-Invocation-Type: "'Event'" header
ApiGateway:
Type: AWS::Serverless::Api
Properties:
StageName: prod
DefinitionBody:
swagger: "2.0"
info:
title:
Ref: AWS::StackName
description: API endpoint for invoking LambdaFunction
version: 1.0.0
paths:
/items:
post:
consumes: ["application/json"]
produces: ["application/json"]
responses: {}
x-amazon-apigateway-integration:
type: "aws_proxy"
uri:
Fn::Sub: arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${LambdaFunction.Arn}/invocations
passthroughBehavior: "when_no_match"
httpMethod: "POST"
requestParameters:
integration.request.header.X-Amz-Invocation-Type: "'Event'"
The problem is that lambda is returning empty response(invoked async) so API Gateway is throwing following error
Wed Nov 14 08:03:14 UTC 2018 : Execution failed due to configuration error: Malformed Lambda proxy response
Wed Nov 14 08:03:14 UTC 2018 : Method completed with status: 502
Is this behaviour expected? Do I have to define responses explicitly? I do not want to throw 200 always because I also want to send bad request and unauthorized errors as well.What's the solution to avoid this problem?
amazon-web-services aws-lambda aws-api-gateway aws-sam
asked Nov 14 '18 at 8:07
himanshu219himanshu219
859
add a comment |
I have configured a lambda proxy integration with API Gateway using SAM specification and am invoking the lambda asynchronously by passing X-Amz-Invocation-Type: "'Event'" header
ApiGateway:
Type: AWS::Serverless::Api
Properties:
StageName: prod
DefinitionBody:
swagger: "2.0"
info:
title:
Ref: AWS::StackName
description: API endpoint for invoking LambdaFunction
version: 1.0.0
paths:
/items:
post:
consumes: ["application/json"]
produces: ["application/json"]
responses: {}
x-amazon-apigateway-integration:
type: "aws_proxy"
uri:
Fn::Sub: arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${LambdaFunction.Arn}/invocations
passthroughBehavior: "when_no_match"
httpMethod: "POST"
requestParameters:
integration.request.header.X-Amz-Invocation-Type: "'Event'"
The problem is that lambda is returning empty response(invoked async) so API Gateway is throwing following error
Wed Nov 14 08:03:14 UTC 2018 : Execution failed due to configuration error: Malformed Lambda proxy response
Wed Nov 14 08:03:14 UTC 2018 : Method completed with status: 502
Is this behaviour expected? Do I have to define responses explicitly? I do not want to throw 200 always because I also want to send bad request and unauthorized errors as well.What's the solution to avoid this problem?
amazon-web-services aws-lambda aws-api-gateway aws-sam
asked Nov 14 '18 at 8:07
himanshu219himanshu219
859
I have configured a lambda proxy integration with API Gateway using SAM specification and am invoking the lambda asynchronously by passing X-Amz-Invocation-Type: "'Event'" header
ApiGateway:
Type: AWS::Serverless::Api
Properties:
StageName: prod
DefinitionBody:
swagger: "2.0"
info:
title:
Ref: AWS::StackName
description: API endpoint for invoking LambdaFunction
version: 1.0.0
paths:
/items:
post:
consumes: ["application/json"]
produces: ["application/json"]
responses: {}
x-amazon-apigateway-integration:
type: "aws_proxy"
uri:
Fn::Sub: arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${LambdaFunction.Arn}/invocations
passthroughBehavior: "when_no_match"
httpMethod: "POST"
requestParameters:
integration.request.header.X-Amz-Invocation-Type: "'Event'"
The problem is that lambda is returning empty response(invoked async) so API Gateway is throwing following error
Wed Nov 14 08:03:14 UTC 2018 : Execution failed due to configuration error: Malformed Lambda proxy response
Wed Nov 14 08:03:14 UTC 2018 : Method completed with status: 502
Is this behaviour expected? Do I have to define responses explicitly? I do not want to throw 200 always because I also want to send bad request and unauthorized errors as well.What's the solution to avoid this problem?
amazon-web-services aws-lambda aws-api-gateway aws-sam
amazon-web-services aws-lambda aws-api-gateway aws-sam
asked Nov 14 '18 at 8:07
himanshu219himanshu219
859
asked Nov 14 '18 at 8:07
himanshu219himanshu219
859
asked Nov 14 '18 at 8:07
himanshu219himanshu219
859
asked Nov 14 '18 at 8:07
himanshu219himanshu219
859
asked Nov 14 '18 at 8:07
himanshu219himanshu219
859
859
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
The SAM template is deploying an API with Lambda proxy integration, it won't be possible to invoke a proxy integrated Lambda asynchronously as the response will be empty which is not in the valid return format for Lambda proxy integration.
Hence, to invoke Lambda asynchronously from API Gateway use aws (custom or non proxy) type integration, setting the X-Amz-Invocation-Type: 'Event' header.
You can also authorize access to your API Gateway to return unauthorized access errors.
answered 15 hours ago
Reethi JosephReethi Joseph
4115
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The SAM template is deploying an API with Lambda proxy integration, it won't be possible to invoke a proxy integrated Lambda asynchronously as the response will be empty which is not in the valid return format for Lambda proxy integration.
Hence, to invoke Lambda asynchronously from API Gateway use aws (custom or non proxy) type integration, setting the X-Amz-Invocation-Type: 'Event' header.
You can also authorize access to your API Gateway to return unauthorized access errors.
answered 15 hours ago
Reethi JosephReethi Joseph
4115
add a comment |
The SAM template is deploying an API with Lambda proxy integration, it won't be possible to invoke a proxy integrated Lambda asynchronously as the response will be empty which is not in the valid return format for Lambda proxy integration.
Hence, to invoke Lambda asynchronously from API Gateway use aws (custom or non proxy) type integration, setting the X-Amz-Invocation-Type: 'Event' header.
You can also authorize access to your API Gateway to return unauthorized access errors.
answered 15 hours ago
Reethi JosephReethi Joseph
4115
add a comment |
The SAM template is deploying an API with Lambda proxy integration, it won't be possible to invoke a proxy integrated Lambda asynchronously as the response will be empty which is not in the valid return format for Lambda proxy integration.
Hence, to invoke Lambda asynchronously from API Gateway use aws (custom or non proxy) type integration, setting the X-Amz-Invocation-Type: 'Event' header.
You can also authorize access to your API Gateway to return unauthorized access errors.
answered 15 hours ago
Reethi JosephReethi Joseph
4115
The SAM template is deploying an API with Lambda proxy integration, it won't be possible to invoke a proxy integrated Lambda asynchronously as the response will be empty which is not in the valid return format for Lambda proxy integration.
Hence, to invoke Lambda asynchronously from API Gateway use aws (custom or non proxy) type integration, setting the X-Amz-Invocation-Type: 'Event' header.
You can also authorize access to your API Gateway to return unauthorized access errors.
answered 15 hours ago
Reethi JosephReethi Joseph
4115
answered 15 hours ago
Reethi JosephReethi Joseph
4115
answered 15 hours ago
Reethi JosephReethi Joseph
4115
answered 15 hours ago
Reethi JosephReethi Joseph
4115
4115
add a comment |
add a comment |
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