Dropping logs in alloy

Grafana Alloy
,
1

Im trying to drop logs in alloy, i know i can drop these in the application itself but i am trying to understand how to configure alloy

The input lines:

{
        "level": 30,
        "time": 1747211787180,
        "pid": 1,
        "hostname": "api-6b497f9b8d-bnxs7",
        "reqId": "60ee8ca1-d9df-494b-be44-73fb63f46668",
        "res": {
            "statusCode": 204
        },
        "responseTime": 0.5024009943008423,
        "msg": "request completed"
    },
    {
        "level": 30,
        "time": 1747211787179,
        "pid": 1,
        "hostname": "api-6b497f9b8d-bnxs7",
        "reqId": "60ee8ca1-d9df-494b-be44-73fb63f46668",
        "req": {
            "method": "GET",
            "url": "/api/public/healthcheck",
            "host": "10.1.115.42:3001",
            "remoteAddress": "10.1.103.111",
            "remotePort": 14650
        },
        "msg": "incoming request"
    }

I want to drop these completely and the stage.drop does nothing for me
this is the latest settings i am using

loki.process "process" {
    forward_to = [loki.write.loki.receiver]

    stage.drop {
        older_than = "24h"
    }

    stage.json {
      expressions = {
        req    = "req",
        msg    = "msg",
        res    = "res",
      }
    }

    stage.json {
      expressions = {
        source = "req",
        url    = "url",
      }
    }

    stage.json {
      expressions = {
        source = "res",
        status = "statusCode",
      }
    }

    stage.drop {
      source     = "url"
      expression = "/api/public/healthcheck"
    }

    stage.drop {
      source     = "status"
      expression = "204"
    }
}

I have tried with url = “req.url” and that route also
What am i doing wrong here?

2

Are you logs coming in as one json string per line, or are they coming in formatted like your example?