Hey guys I'm trying to add a new scalar with

GraphQLScalarType

in schema.graphql

scalar DateTime

type User {
  id: ID!
  registered: DateTime
}

types.ts

type DateTime = string 

export interface User {
    id: string
    registered: DateTime
}

scalars/DateTime.ts

export const DateTime = new GraphQLScalarType({
   name: 'DateTime',
   description: 'testing DateTime' ,
   serialize: (value) => {
      let result;
      console.log(value);
      return result;
   },
   parseValue: (value) => {
      let result;
      console.log(value);
      return result;
   },
   parseLiteral: (ast) => {
      console.log(ast);
   },
});

In the resolvers.ts I've tried to import the

DateTime

and added to

export const resolvers: Resolvers = {
    DateTime,
    User,
}

But I get the error

Type '{ DateTime: GraphQLScalarType; User: Type; }' is not assignable to type 'Resolvers'.

How should I add the scalar to the server (

graphql-yoga

) ?

OMG, I was looking for a that, have you found a solution ?

Hey @guille Can you please tell me how you are generating that Resolver type? This looks like a typescript error to me. If you cast the resolver object to any it should work. But do let me know what you are using for type generation

@Harshit I'm using the

graphqlgen

command, my

graphqlgen.yml

looks exactly like this https://github.com/prisma/graphqlgen/blob/master/packages/graphqlgen-templates/typescript-yoga/graphqlgen.yml

This is a known issue in graphqlgen: https://github.com/prisma/graphqlgen/issues/165

Thanks, I shouldn't expect a solution any time soon, so I'll try with resolvers as any, thanks @Harshit!