serverless.yml

service: rwp-webhook

package:
  individually: true

plugins:
  - serverless-bundle
  - serverless-iam-roles-per-function
  - serverless-disable-request-validators
  - serverless-reqvalidator-plugin

custom:
  bundle:
    aliases:
      - '@': ../../lib/
    forceExclude:
      - '@aws-sdk/client-apigatewaymanagementapi'
      - '@aws-sdk/client-dynamodb'
      - '@aws-sdk/client-sns'
      - '@aws-sdk/util-dynamodb'

provider:
  name: aws
  runtime: nodejs18.x
  stage: ${opt:stage, 'prod'}
  profile: aurdalgroup-${self:provider.stage}
  region: ${opt:region, 'eu-west-1'}
  logRetentionInDays: 14
  # Link to existing API GW
  apiGateway:
    restApiId: !Ref ApiGatewayRestApi
    restApiRootResourceId: !GetAtt ApiGatewayRestApi.RootResourceId

functions:
  webhook:
    handler: webhook.main
    name: rwp-${self:provider.stage}-webhook-webhook
    timeout: 30
    environment:
      WEBSOCKETS_TOPIC_ARN: !ImportValue WebsocketsTopicArn
    iamRoleStatements:
      - Effect: Allow
        Action:
          - sns:Publish
        Resource: !ImportValue WebsocketsTopicArn
    events:
      - http:
          path: webhook
          method: post
          cors: true

resources:
  Resources:
    # Define REST API GW
    ApiGatewayRestApi:
      Type: AWS::ApiGateway::RestApi
      Properties:
        Name: rwp-${self:provider.stage}-webhook-rest
        Description: REST API.

    4XXGatewayResponse:
      Type: AWS::ApiGateway::GatewayResponse
      Properties:
        ResponseType: DEFAULT_4XX
        RestApiId: !Ref ApiGatewayRestApi
        ResponseParameters:
          gatewayresponse.header.Access-Control-Allow-Origin: "'*'"
          gatewayresponse.header.Access-Control-Allow-Headers: "'*'"
        ResponseTemplates:
          application/json: '{"error":$context.error.messageString}'

  Outputs:
    ApiGatewayRestApiId:
      Value: !Ref ApiGatewayRestApi
      Export:
        Name: ApiGatewayRestApiId
    ApiGatewayRestApiRootResourceId:
      Value: !GetAtt ApiGatewayRestApi.RootResourceId
      Export:
        Name: ApiGatewayRestApiRootResourceId