Graphql-code-generator: Overriding default scalars

[Slessi]

I have a custom resolver for GraphQL's ID scalar, which sends strings to the client but resolves to integers for the server.

I have tried specifying a custom type inside gql-gen.json, however I still get string inside the generated types.

Is there a way to override the types for default scalars such as ID?

// gql-gen.json
{
  "generatorConfig": {
    "scalars": {
      "ID": "number"
    }
  }
}

# schema.graphql
type MyType {
    id: ID!
}

// types.ts
export interface MyType {
 id: string;
}

[ardatan]

Could you try to use primitives instead of scalars?

[Slessi]

@ardatan Tried as described in packages/graphql-codegen-cli/README.md but has no effect.

// gql-gen.json
{
    "primitives": {
        "ID": "number"
    }
}

Just for good measure, I even tried the following, but still no luck

{
    "primitives": {
        "ID": "number"
    },
    "scalars": {
        "ID": "number"
    },
    "generatorConfig": {
        "primitives": {
            "ID": "number"
        },
        "scalars": {
            "ID": "number"
        }
    }
}

[ardatan]

Could you remove scalars field and only use primitives?

[Slessi]

@ardatan That was the first thing I tried. Also tried any other combinations I could think of

[Slessi]

@ardatan Minimal repro available here https://github.com/Slessi/gql-gen-primitive-override-repro

[ardatan]

Found an issue about CLI's gql-gen.json handling.
Thank you!

[dotansimha]

For now, we released an alpha version with a fix for this:

Successfully published:
 - [email protected]
 - [email protected]
 - [email protected]
 - [email protected]
 - [email protected]
 - [email protected]
 - graphql-codegen-typescript-mongodb-template@0.12.0-alpha.821f12df
 - graphql-codegen-typescript-react-apollo-template@0.12.0-alpha.821f12df
 - [email protected]

[Slessi]

I can confirm that it works for me now with the alpha branch

[dotansimha]

Done in 0.12.0