How to only expose part of prima generated schema in nestjs - graphql

Question

I'm trying to integrate nestjs with prisma. I followed the tutorial in nestjs document.
Everthing works fine until I want to make some changes so nestjs doesn't expose all the query/mutations schema.
what I did is
1. update app module not let typePath include the generated schema
import { Module } from '#nestjs/common';
import { AppController } from 'app/app.controller';
import { AppService } from 'app/app.service';
import { GraphQLModule } from '#nestjs/graphql';
import { UserModule } from './user/user.module';
#Module({
imports: [
GraphQLModule.forRoot({
typePaths: ['./src/**/*.schema.graphql'],
debug: true,
playground: true,
}),
UserModule,
],
controllers: [AppController],
providers: [AppService],
})
export class AppModule {}
2. Then I created a user.schema.graphql file in user folder:
#import User from "../prisma/generated/prisma.graphql"
type Query {
user(id: ID!): User
}
However, I got some error saying I can't import User:
(node:36277) UnhandledPromiseRejectionWarning: Error: Type "User" not found in document.
at ASTDefinitionBuilder._resolveType (/Users/anx/Projects/axesk/gallery-api/node_modules/graphql/utilities/buildASTSchema.js:100:11)
at ASTDefinitionBuilder.buildType (/Users/anx/Projects/axesk/gallery-api/node_modules/graphql/utilities/buildASTSchema.js:210:79)
at ASTDefinitionBuilder._buildWrappedType (/Users/anx/Projects/axesk/gallery-api/node_modules/graphql/utilities/buildASTSchema.js:229:17)
at ASTDefinitionBuilder.buildField (/Users/anx/Projects/axesk/gallery-api/node_modules/graphql/utilities/buildASTSchema.js:249:18)
at /Users/anx/Projects/axesk/gallery-api/node_modules/graphql/utilities/buildASTSchema.js:332:21
at /Users/anx/Projects/axesk/gallery-api/node_modules/graphql/jsutils/keyValMap.js:36:31
at Array.reduce (<anonymous>)
at keyValMap (/Users/anx/Projects/axesk/gallery-api/node_modules/graphql/jsutils/keyValMap.js:35:15)
at ASTDefinitionBuilder._makeFieldDefMap (/Users/anx/Projects/axesk/gallery-api/node_modules/graphql/utilities/buildASTSchema.js:329:48)
at fields (/Users/anx/Projects/axesk/gallery-api/node_modules/graphql/utilities/buildASTSchema.js:312:22)
(node:36277) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)
(node:36277) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
I'm new to nestjs and graphql, please help!

Answer 1

I make it work in sort of hack way.. i will just paste my solution here for anyone who got same problem.
For example i have a user.schema.graphql that import some type from prisma.graphql:
#import User from "../prisma/generated/prisma.graphql"
type Query {
user(id: ID!): User
}
Then i create a main.schema.graphql file that will import every schemas from the project manually.
#import * from "./user/user.schema.graphql"
Finally just import this maim schema to app.module.ts:
import { Module } from '#nestjs/common';
import { AppController } from 'app/app.controller';
import { AppService } from 'app/app.service';
import { GraphQLModule } from '#nestjs/graphql';
import { UserModule } from './user/user.module';
import { importSchema } from 'graphql-import';
#Module({
imports: [
GraphQLModule.forRoot({
resolverValidationOptions: {
requireResolversForResolveType: false,
},
typeDefs: importSchema('./src/main.schema.graphql'),
debug: true,
playground: true,
}),
UserModule,
],
controllers: [AppController],
providers: [AppService],
})
export class AppModule {}
Doing this not really ideal. if graphql-import library can import from folders, it makes life easier.
or the #nest/graphql library can use graphql-import instead of merge-graphql-schemas under the hood to build typeDefs will be also great.