Using MongoDB in Symfony Monolog Causes Error

Question

The error I'm getting is like the following:

---

Some information that you should know:

1. I'm using Symfony 5

2. I'm able to connect to mongo db using MongoDB Compass and in terminal using mongo command

3. What packages I have installed are the following:

   • "mongodb/mongodb": "^1.6"
   • "monolog/monolog": "^2.0"
   • "symfony/monolog-bundle": "^3.5"

4. My configuration file monolog.yaml (config/packages/dev/monolog.yaml) is like the following:

monolog:
    handlers:
        mongo:
            type: mongo
            mongo:
                host: localhost

Thank you.

Answer 1

I had installed mongodb with brew. And I figured out MongoDB\Client class was not recognized. Then I found that we can install mongo driver manually.

1. I followed the steps here : https://www.php.net/manual/en/mongodb.installation.manual.php

2. I've changed my monolog configuration file monolog.yaml as

monolog:
  handlers:
    mongodb:
      type: mongo
      mongo:
        id: mongolog

3. I added MongoDB\Client as service into service configuration file services.yaml

services:
    ...
    mongolog:
        class: MongoDB\Client

And after doing things above, it's worked.