Vfrdtyky

I'm trying to create an API Gateway using a Cloudformation template like this:

Resources:

 InvoiceApi:

  Type: AWS::ApiGateway::RestApi

  Properties:

    Description: an Api for our Invoicegen App

    Name: !Ref ApiName

    ApiKeySourceType: !Ref ApiKeySourceType

    BinaryMediaTypes:

    - !Ref binaryMediaType1

    - !Ref binaryMediaType2

    BodyS3Location:

     Bucket:

       Fn::ImportValue: !Sub ${EnvironmentName}-SwaggerApiBucket-Name

     Key: swaggertest.yaml

     ETag: !Ref ETag

     EndpointConfiguration:

     Types:

      - REGIONAL

     FailOnWarnings: true

     MinimumCompressionSize: !Ref minimumCompressionSize

the Swagger-yaml file on the S3 Bucket looks like this:

  swagger: '2.0'

  info:

    version: '2016-08-17T18:08:34Z'

    title: InvoicegenAPI

  basePath: "/LATEST"

  schemes:

   - https

  paths:

    /greeting:

       get:

         summary: Get Greeting

         parameters:

          - name: name

            in: query

            required: false

            type: string

        produces:

          - application/json

        responses:

          '200':

            description: 200 response

        x-amazon-apigateway-integration:

          requestTemplates:

            application/json: '{"name": "$input.params(''name'')"}'

          uri:

            Fn::Join:

             - ''

             - - 'arn:aws:apigateway:'

               - Ref: AWS::Region

               - ":lambda:path/2015-03-31/functions/"

               - Fn::GetAtt:

                 - InvoiceLambda

                 - Arn

               - "/invocations"

         responses:

           default:

             statusCode: '200'

         httpMethod: POST

         type: aws

unfortunately it throws an error like this:

Unable to parse API definition because of a malformed integration at path /greeting. (Service: AmazonApiGateway; Status Code: 400; Error Code: BadRequestException; Request ID: 2cf08a97-e66f-11e8-afee-fb6b03568b64)

I double checked the Swagger file, all the indents seem fine. What am I missing?

There is a thread dealing with this issue already but has not yielded any solution yet.

Passing ARN reference from CloudFormation to Swagger

merci in advance

A

I think you problem is on using the BodyS3Location property for the referenced S3 file, which is probably not parsing the YAML file, therefore not resolving your instricic functions.

My suggestion is that you change to Body + AWS::Include Transform, similar to what was suggested on Passing ARN reference from CloudFormation to Swagger. Try this as your Resource:

Resources:

 InvoiceApi:

  Type: AWS::ApiGateway::RestApi

  Properties:

    Description: an Api for our Invoicegen App

    Name: !Ref ApiName

    ApiKeySourceType: !Ref ApiKeySourceType

    BinaryMediaTypes:

    - !Ref binaryMediaType1

    - !Ref binaryMediaType2

    Body:

      Fn::Transform:

        Name: AWS::Include

        Parameters:

          Location: !Sub 's3://${EnvironmentName}-SwaggerApiBucket-Name/swaggertest.yaml'

    EndpointConfiguration:

    Types:

    - REGIONAL

    FailOnWarnings: true

    MinimumCompressionSize: !Ref minimumCompressionSize