TypeOrm cause MaxListenersExceededWarning

[michaelsogos]

With version 0.2.25 of TypeOrm, when I try to save 10 records at once using Repository.Save(), nodejs print the "MaxListenersExceededWarning".

Typeorm project owners already knows about "MaxListenersExceededWarning" with PGSQL server (exactly my case).
Typeorm Issue Here

Actually i don't want to add manually the package typeorm@0.2.26, i prefer to let this library to include the right version of typeorm; so i will wait till a newer package version will be released which will include a newer package version of typeorm.

[kamilmysliwiec]

Fixed

[climmmm]

Hello,

Sorry, but we always have the warning displayed when we want to register an entity in the PostgresSQL database:

(node:11170) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 error listeners added to [Client]. Use emitter.setMaxListeners() to increase the limit.

Code sample:

import { Injectable } from '@nestjs/common';
import { Repository } from 'typeorm';
import { GbfsRt } from './gbfs-rt.entity';
import { InjectRepository } from '@nestjs/typeorm';
@Injectable()
export class DbGbfsRtService {
  constructor(
    @InjectRepository(GbfsRt)
    private readonly dbGbfsRtRepository: Repository<GbfsRt>,
  ) {
  }

  async saveAll(gbfsRts: GbfsRt[]): Promise<void> {
    try {
      await this.dbGbfsRtRepository.save(gbfsRts);
    } catch (error) {
      throw error;
    }
  }
}

The warning has appeared since we upgraded the @nestjs/typeorm and typeorm packages :

[sclausen]

@climmmm It's fixed in the PR typeorm/typeorm#6708 and discussed in the issue typeorm/typeorm#6699, but not released yet.

[climmmm]

Thank you !