[V5] Best way to check if Redis connection exists

[vkaelin]

Hi!
I'm trying to find a good way to tell the developer that the redis connection isn't working without having to wait for the long default 20 retries (maxRetriesPerRequest key in the redis config).

Here is my current code in the AppProvider.ts:

import { IocContract } from '@adonisjs/fold'
import { Exception } from '@poppinss/utils'

export default class AppProvider {
  constructor (protected $container: IocContract) {
  }

  public register () {
  }

  public async boot () {
    // Check if Redis connection works
    const Redis = (await import('@ioc:Adonis/Addons/Redis')).default
    const redisConfig = (await import('@ioc:Adonis/Core/Config')).default.get('redis')
    const connection = redisConfig.connections[redisConfig.connection]

    try {
      await Redis.info()
    } catch (e) {
      throw new Exception(
        `No Redis connection registered on host ${connection.host}:${connection.port}`,
        500,
        'E_NO_REDIS_CONNECTION',
      )
    }
  }

  public shutdown () {
  }

  public ready () {
  }
}

But it's still trying to make the request 20 times.
I saw that ioredis package had a redis.status key but I can't find it in the Adonis Redis package.
Thanks!

[thetutlage]

Simply set the maxRetriesPerRequest to 0 and hence it will not retry again

[vkaelin]

Thanks! Should I set maxRetriesPerRequest to 0 in development and let the default 20 in production. Sounds safer ?