oa_based/src/modules/auth/strategies/local.strategy.ts

import { Injectable } from '@nestjs/common';
import { PassportStrategy } from '@nestjs/passport';
import { Strategy } from 'passport-local';

import { AuthStrategy } from '../auth.constant';
import { AuthService } from '../auth.service';

@Injectable()
export class LocalStrategy extends PassportStrategy(Strategy, AuthStrategy.LOCAL) {
  constructor(private authService: AuthService) {
    super({
      usernameField: 'credential',
      passwordField: 'password',
    });
  }

  async validate(username: string, password: string): Promise<any> {
    const user = await this.authService.validateUser(username, password);
    return user;
  }
}