CODEWITHSUNDEEP
javascriptnode.jsnest
Graham Morby
Graham Morby

Reputation: 197

Nest can't resolve dependencies of the ClientsService (?)

So I have a sample app im building in nest js and I hit an error on npm start

Nest can't resolve dependencies of the ClientsService (?). Please make sure that the argument ClientModel at index [0] is available in the ClientsModule context.

So I have checked it over but cant seem to find why the error is happening

My client.service.ts

import { Injectable } from '@nestjs/common';
import { Model } from 'mongoose';
import { InjectModel } from '@nestjs/mongoose';
import { Client } from 'clients/interfaces/client.interface';
import { CreateClientDTO } from 'clients/dto/create-client.dto';


@Injectable()
export class ClientsService {
    constructor(@InjectModel('Client') private readonly clientModel: Model<Client>) { }

    // Get all clients
    async getClients(): Promise<Client[]> {
        const clients = await this.clientModel.find().exec();
        return clients
    }

    //Get single client
    async getClient(clientID: Promise<Client>) {
        const client = await this.clientModel
            .findById(clientID)
            .exec();
        return client;
    }

    //Add client
    async addClient(createClientDTO: CreateClientDTO): Promise<Client> {
        const newClient = await new this.clientModel(createClientDTO);
        return newClient.save()
    }
}

and my client.module.ts

import { Module } from '@nestjs/common';
import { ClientsService } from './clients.service';
import { ClientsController } from './clients.controller';
import { MongooseModule } from '@nestjs/mongoose';
import { ClientSchema } from 'clients/schemas/clients.schema';

@Module({
  imports: [
    MongooseModule.forFeature([{name: 'Clients', schema: ClientSchema}])
  ],
  providers: [ClientsService],
  controllers: [ClientsController]
})
export class ClientsModule {}

Upvotes: 0

Views: 757

Answers (1)

Mostafa Fakhraei
Mostafa Fakhraei

Reputation: 3687

The InjectModel decorator expects to take the schema name of your entity.

So you tell the mongoose in ClientsModule that the schema name is Clients, but in ClientsService you try to inject the model with the schema name Client, which is different from the contract in the module.

MongooseModule.forFeature([{name: 'Clients', schema: ClientSchema}])

constructor(@InjectModel('Client') private readonly clientModel: Model<Client>) { }

Upvotes: 1

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