ioredis won't throw errors, prints to console instead - Unhandled error event: Error: connect ECONNREFUSED

[vktrl]

Error handling seems to be broken when trying to query a non-existent database. To reproduce:

const Redis = require('ioredis');

const settings = {
  host: "localhost",
  port: 1234 // any invalid port
};

const redis = new Redis(settings);

(async function() {
  try {
    await redis.info()
  } catch (err) {
    // no error is caught, ioredis prints straight to console
    console.log("caught: ", err)
  }
})()

Results in console getting flooded with:

[ioredis] Unhandled error event: Error: connect ECONNREFUSED 127.0.0.1:6379
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1146:16)

Version 4.19.2

[peteraw77]

Experiencing the same issue, tried passing a reconnectOnError function but no use

[peteraw77]

The proposed solution in #1209 seemed to resolve this for me.

[vktrl]

The proposed solution in #1209 seemed to resolve this for me.

I don't see how this helps. Ioredis should throw an error so I could do something about it.

[smartinio]

@vktrl Redis extends EventEmitter, so it doesn't throw the error. It emits the error. You need to attach an error handler using e.g:

redis.on('error', (e) => doSomething())

[vktrl]

@vktrl Redis extends EventEmitter, so it doesn't throw the error. It emits the error. You need to attach an error handler using e.g:

redis.on('error', (e) => doSomething())

Oh, I see, thanks!

[cope]

And what can we do in redis.on('error' to make this stop? I tried .disconnect and .quit and nothing helps 😞