api-queue-template.yaml

AWSTemplateFormatVersion: 2010-09-09
Transform: AWS::Serverless-2016-10-31
Description: Creates an API Gateway to publish data to a SQS queue.

Resources:

  ApiQueue:
    Type: AWS::SQS::Queue

  ApiRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Action:
              - sts:AssumeRole
            Principal:
              Service:
                - apigateway.amazonaws.com
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/service-role/AmazonAPIGatewayPushToCloudWatchLogs
      Policies:
        - PolicyName: ApiQueuePolicy
          PolicyDocument:
            Version: 2012-10-17
            Statement:
              - Effect: Allow
                Action:
                  - sqs:SendMessage
                Resource: !GetAtt ApiQueue.Arn

  Api:
    Type: AWS::Serverless::Api
    Properties:
      StageName: latest
      Auth:
        ApiKeyRequired: 'true'
      DefinitionBody:
        swagger: '2.0'
        info:
          version: '1.0'
          title: !Ref AWS::StackName
        paths:
          "/":
            post:
              consumes:
              - "application/json"
              responses:
                "204":
                  description: 204 Response
              x-amazon-apigateway-integration:
                type: aws
                httpMethod: POST
                credentials: !GetAtt ApiRole.Arn
                uri: !Sub "arn:aws:apigateway:${AWS::Region}:sqs:path//"
                responses:
                  default:
                    statusCode: "204"
                requestParameters:
                  integration.request.header.Content-Type: "'application/x-www-form-urlencoded'"
                requestTemplates:
                  application/json: !Sub "Action=SendMessage##\n&QueueUrl=$util.urlEncode('${ApiQueue}')##\n\
                    &MessageBody=$util.urlEncode($input.body)##\n"
                passthroughBehavior: never

  ApiKey:
    Type: AWS::ApiGateway::ApiKey
    Properties:
      Description: !Ref AWS::StackName
      Enabled: true
      StageKeys:
        - RestApiId: !Ref Api
          StageName: !Ref Api.Stage

  ApiUsagePlan:
    Type: AWS::ApiGateway::UsagePlan
    Properties:
      ApiStages:
        - ApiId: !Ref Api
          Stage: !Ref Api.Stage

  ApiUsagePlanKey:
    Type: AWS::ApiGateway::UsagePlanKey
    Properties:
      KeyId: !Ref ApiKey
      KeyType: API_KEY
      UsagePlanId: !Ref ApiUsagePlan

Outputs:

  ApiGatewayExecuteApi:
    Value: !Sub https://${Api}.execute-api.${AWS::Region}.${AWS::URLSuffix}/${Api.Stage}/

  ApiKey:
    Value: !Ref ApiKey

  SqsQueueUrl:
    Value: !Ref ApiQueue

  SqsQueueArn:
    Value: !GetAtt ApiQueue.Arn