[Federation] interface implements other interfaces

[L-Luciano]

Is there an existing issue for this?

• [X] I have searched the existing issues

Current behavior

When I run the server using code-first approach I get the following error. Using the schema-first approach it is working as expected.

/Users/laurent/users-application/node_modules/graphql/type/schema.js:219
        throw new Error(
              ^
Error: Schema must contain uniquely named types but contains multiple types named "Entity".
    at new GraphQLSchema (/Users/laurent/users-application/node_modules/graphql/type/schema.js:219:15)
    at transformSchema (/Users/laurent/users-application/node_modules/@nestjs/graphql/dist/utils/transform-schema.util.js:22:12)
    at GraphQLFederationFactory.overrideOrExtendResolvers (/Users/laurent/users-application/node_modules/@nestjs/graphql/dist/federation/graphql-federation.factory.js:101:60)
    at GraphQLFederationFactory.generateSchema (/Users/laurent/users-application/node_modules/@nestjs/graphql/dist/federation/graphql-federation.factory.js:79:33)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at GraphQLFederationFactory.mergeWithSchema (/Users/laurent/users-application/node_modules/@nestjs/graphql/dist/federation/graphql-federation.factory.js:32:22)
    at ApolloFederationDriver.start (/Users/laurent/users-application/node_modules/@nestjs/apollo/dist/drivers/apollo-federation.driver.js:19:32)
    at GraphQLModule.onModuleInit (/Users/laurent/users-application/node_modules/@nestjs/graphql/dist/graphql.module.js:105:9)
    at callModuleInitHook (/Users/laurent/users-application/node_modules/@nestjs/core/hooks/on-module-init.hook.js:51:9)
    at NestApplication.callInitHook (/Users/laurent/users-application/node_modules/@nestjs/core/nest-application-context.js:178:13)

Minimum reproduction code

https://github.com/L-Luciano/graphql-federation-interface

Steps to reproduce

1. npm i
2. npm run start:dev

Expected behavior

server starts

Package version

10.0.19

Graphql version

"apollo-server-express": "3.9.0", "graphql": "16.5.0", "graphql-tools": "8.3.0",

"@apollo/federation": "0.36.1", "@apollo/gateway": "2.0.5", "@apollo/subgraph": "2.0.5",

NestJS version

9.0.1

Node.js version

v16.14.0

In which operating systems have you tested?

• [X] macOS
• [ ] Windows
• [ ] Linux

Other

Interfaces :

import { Field, ID, InterfaceType } from '@nestjs/graphql';

@InterfaceType()
export abstract class Entity {
  @Field(() => ID)
  id: number;
}

import { Field, InterfaceType } from '@nestjs/graphql';
import { Entity } from './entity.interface';

@InterfaceType({ implements: [Entity] })
export abstract class Person extends Entity {
  @Field(() => String)
  lastName: string;

  @Field(() => String)
  firstName: string;
}

Models :

@ObjectType({ implements: [Entity, Person] })
@Directive('@key(fields: "id")')
export class User extends Person {
  @Field()
  email: string;
}

This works with apollo-server packages.

No response

[L-Luciano]

up 😄

[roypeled]

Hey @L-Luciano did this merge https://github.com/nestjs/graphql/pull/2666 fixed your issue? try to upgrade nest/graphql to version 11

[L-Luciano]

Yes, it looks like