TypeORM ManyToMany relation with custom pivot table and column names.

Client.ts

import { Entity, PrimaryGeneratedColumn, Column, ManyToMany, JoinTable } from 'typeorm';

import Company from './Company';

@Entity('clients')
export default class Client {
  @PrimaryGeneratedColumn()
  id: number;

  @Column()
  name: string;

  @Column()
  email: string;

  @Column()
  document: string;

  @Column()
  password: string;

  @ManyToMany(() => Company, company => company.clients)
  @JoinTable({
    name: 'clients_companies_relation',
    joinColumn: {
      name: 'client_id',
      referencedColumnName: 'id',
    },
    inverseJoinColumn: {
      name: 'company_id',
      referencedColumnName: 'id',
    }
  })
  companies: Company[];
}

ClientsRepository.ts

import { getRepository, Repository } from 'typeorm';

import Client from '../entities/Client';

interface IClientsRepository {
  findById(id: number): Promise<Client>;
}
    
export default class ClientsRepositoryimplements IClientsRepository {
  private ormRepository: Repository<Client>;
    
  constructor() {
    this.ormRepository = getRepository(Client);
  }
    
  public async findById (id: number): Promise<Client> {
    const client = await this.ormRepository.findOne(id, { relations: ['companies'] });
    
    return client;
  }
}

Company.ts

import { Entity, PrimaryGeneratedColumn, Column, ManyToMany } from 'typeorm';

import Client from './Client';

@Entity('companies')
export default class Company {
  @PrimaryGeneratedColumn()
  id: number;

  @Colum()
  company_name: string;

  @Column()
  document: string;

  @Column()
  phone: string;

  @ManyToMany(() => Client, client => client.companies)
  clients: Client[];
}