CODEWITHSUNDEEP
aws-lambdaaws-api-gatewayaws-sam
simon
simon

Reputation: 765

How to specify mapping templates in AWS SAM

I have an AWS lambda that acts on an events of the form:

{"id": "some-id", "stuff": "bla-bla-stuff-here" }

Now I want to attach an API Gateway endpoint with POSTs to an url of the form /stuff/{id} where the actual stuff would go in the body. So, on the integration request of the method there is a mapping template section which seems to allow for something like:

{
  "id": $input.params('id'),
  "stuff": $input.body
}

Now, how do I specify this template in the SAM file?

Upvotes: 2

Views: 1408

Answers (1)

Brett
Brett

Reputation: 2746

SAM uses the Proxy integration to Lambda which I don't think works with request/response mapping. If it does, you would need to specify this in Swagger as the DefinitionBody property of the Serverless::Api as SAM doesn't currently have a property for adding Request/Response mapping and generating the Swagger for you. The easiest way to use Swagger is to inspect the generated CloudFormation template of your stack; copy-paste it into your SAM template under DefinitionBody; and then apply the necessary Swagger additions.

Upvotes: 1

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