Fix graphql Queries (#142)

server/src/api/resolvers/user.resolver.ts

@@ -1,27 +1,27 @@
-import { PrismaClient } from '@prisma/client';
 import { Person, User } from '../generated-graphql/models';
 import { Resolver, Query, Args, Mutation } from '@nestjs/graphql';
 import { FindManyUserArgs } from '../generated-graphql/resolvers/crud/User/args/FindManyUserArgs';
 import { FindUniqueUserOrThrowArgs } from '../generated-graphql';
+import { PrismaService } from 'src/database/prisma.service';
 
 @Resolver(() => User)
 export class UserResolver {
-  constructor(private readonly prismaClient: PrismaClient) {}
+  constructor(private readonly prismaService: PrismaService) {}
 
   @Query(() => [User], {
     nullable: false,
   })
   async users(@Args() args: FindManyUserArgs): Promise<User[]> {
-    return this.prismaClient.user.findMany({
+    return await this.prismaService.user.findMany({
       ...args,
     });
   }
 
   @Query(() => User, {
-    nullable: true,
+    nullable: false,
   })
-  async getUser(@Args() args: FindUniqueUserOrThrowArgs): Promise<User | null> {
-    return this.prismaClient.user.findUniqueOrThrow({
+  async user(@Args() args: FindUniqueUserOrThrowArgs): Promise<User | null> {
+    return await this.prismaService.user.findUnique({
       ...args,
     });
   }