Unknown directive "@namespace" error

[185driver]

New Issue Checklist

• I am not disclosing a vulnerability.
• I am not just asking a question.
• I have searched through existing issues.
• I can reproduce the issue with the latest version of Parse Server.

Issue Description

An error is thrown on build if I use the @namespace directive in custom schema.

Steps to reproduce

const parseGraphQLServer = new ParseGraphQLServer(
  parseServer,
  {
    graphQLPath: '/graphql',
    graphQLCustomTypeDefs: gql`
    extend type Query {
      custom: Custom @namespace
    }
    type Custom {
      hello: String @resolve
    }
  `,
    playgroundPath: '/playground',
  },
);

1. Initialize a ParseServer using the code found in @davimacedo 's PR found at GraphQL Custom Schema #5821 (comment)
2. Open the GraphQL API console. The error will be logged in the dev console.

Actual Outcome

An Unknown directive "@namespace" error in the console.

Expected Outcome

I thought it would not error out.

Environment

Server

• Parse Server version: 4.30
• Operating system: Win 10
• Local or remote host (AWS, Azure, Google Cloud, Heroku, Digital Ocean, etc): localhost

Database

• System (MongoDB or Postgres): MongoDB
• Database version: 4.2.8
• Local or remote host (MongoDB Atlas, mLab, AWS, Azure, Google Cloud, etc): MongoDB Atlas

Client

• SDK (iOS, Android, JavaScript, PHP, Unity, etc): JS
• SDK version: Cloud Code

Logs

error: Error: Unknown directive "@namespace".
    at assertValidSDLExtension (C:\Mypath\node_modules\graphql\validation\validate.js:124:11)
    at Object.extendSchema (C:\Mypath\node_modules\graphql\utilities\extendSchema.js:77:43)
    at extensions.forEach.extension (C:\Mypath\node_modules\@graphql-tools\stitch\index.cjs.js:862:28)   
    at Array.forEach (<anonymous>)
    at stitchSchemas (C:\Mypath\node_modules\@graphql-tools\stitch\index.cjs.js:861:16)
    at ParseGraphQLSchema.load (C:\Mypath\node_modules\parse-server\lib\GraphQL\ParseGraphQLSchema.js:212:56)
    at process._tickCallback (internal/process/next_tick.js:68:7)

[mtrezza]

Thanks for reporting.

@Moumouls Since you are a GraphQL expert, do you have any comment on this?

[davimacedo]

@185driver There is no @namespace directive implemented by default in Parse Server GraphQL. Could you please explain what's your goal with this directive? Maybe it's something that can be added to the project.

[Moumouls]

@davimacedo, you are right, @185driver , directives were designed to customize and enhance a GraphQL Schema.
Some default directives exists like: @deprecated , @skip. In case of parse server we added @resolve (designed to call a Parse Cloud function as a resolver) and @mock to allow developers to mock a response when they need the API Schema but do not have the resolver/clound function ready.

@namespace seems to be a custom directive, may be you see this directive into a GraphQL example ?

[Moumouls]

Ohhhh i see @185driver , @namespace was removed from API it's just a resolve that return an empty object () => ({}). After namespace i suggested to implement @mock that replace @namespace you can find some example on the PR from @davimacedo : #5836

[Moumouls]

@185driver If everything is ok for you, i let you close this issue

[185driver]

Oh, copy that. That would explain the error, ha. Thank you.