nest-project/src/users/users.service.ts

import { Injectable, NotFoundException } from '@nestjs/common'
import { PrismaService } from 'nestjs-prisma'
import { Prisma } from '@prisma/client'
import { UserEntity } from './entities/user.entity'

@Injectable()
export class UsersService {
  constructor(private prismaService: PrismaService) {}

  async findUser(where: Prisma.UserWhereUniqueInput): Promise<UserEntity> {
    const user = await this.prismaService.user.findUnique({
      where,
    })
    if (!user) {
      throw new NotFoundException(`No user found`)
    }
    return user
  }
}