Is it possible to use AppSync and GraphQL without mapping templates?

Question

Is it possible to use AppSync and GraphQL without mapping templates? Because Serverless has a limit of 200 resources and every mapping template is new resource.

Thank you!

Answer 1

The problem was that I was using serverless-appsync-plugin which didn't permit me to use the same GraphQL instance in multiple serverless projects.

I removed the plugin and referenced the API in different projects like this:

CreateUserDataSource:
    Type: AWS::AppSync::DataSource
    Properties:
      ApiId: { 'Fn::ImportValue': 'graphQLApiId-${self:provider.stage}' }
      Name: CreateUser
      Type: AWS_LAMBDA
      LambdaConfig: 
        LambdaFunctionArn: {'Fn::GetAtt': [CreateUserLambdaFunction, Arn]}
      ServiceRoleArn: { 'Fn::ImportValue': 'appSyncServiceRole-${self:provider.stage}' }

  CreateUserResolver:
    Type: AWS::AppSync::Resolver
    Properties:
      ApiId: { 'Fn::ImportValue': 'graphQLApiId-${self:provider.stage}' }
      DataSourceName: CreateUser
      FieldName: createUser
      TypeName: Mutation
      RequestMappingTemplate: "{
        \"version\": \"2017-02-28\",
        \"operation\": \"Invoke\",
        \"payload\": {
          \"field\": \"createUser\",
          \"arguments\": $utils.toJson($context.arguments),
          \"handle\": $utils.toJson($context.identity)
        }
      }"
      ResponseMappingTemplate: $util.toJson($context.result)