# Prometheus plugin returning 405 Method Not Allowed on /metrics

**URL:** <https://discuss.konghq.com/t/prometheus-plugin-returning-405-method-not-allowed-on-metrics/5167>\
**Category:** Questions\
**Created:** [December 18, 2019, 12:58am UTC](https://discuss.konghq.com/t/prometheus-plugin-returning-405-method-not-allowed-on-metrics/5167 "2019-12-18T00:58:46Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![zorlack](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/zorlack/32/1577_2.png) [@zorlack](https://discuss.konghq.com/u/zorlack)\
**Post date:** [December 18, 2019, 12:58am UTC](https://discuss.konghq.com/t/prometheus-plugin-returning-405-method-not-allowed-on-metrics/5167/1 "2019-12-18T00:58:46Z")

</div>

Hello,

I’ve setup a Kong 1.4.1 cluster on three servers with a Cassandra backing.

I have a working service named my-service and I want to monitor it using Prometheus.

**Step 1: Enable the plugin for the service:**

```
curl -X POST http://localhost:8001/services/my-service/plugins --data "name=prometheus"
{
  "created_at": 1576630361,
  "consumer": null,
  "id": "d9cb0e37-795c-40f9-8902-c097f73bccf5",
  "service": {
    "id": "376b38e5-913f-4ed0-9556-71c1b2584aca"
  },
  "name": "prometheus",
  "config": {},
  "route": null,
  "run_on": "first",
  "tags": null,
  "protocols": [
    "grpc",
    "grpcs",
    "http",
    "https"
  ],
  "enabled": true
}

```

**Step 2: Validate that the plugin is enabled:**

```
curl http://localhost:8001/services/my-service/plugins
{
  "next": null,
  "data": [
    {
      "created_at": 1576630361,
      "consumer": null,
      "id": "d9cb0e37-795c-40f9-8902-c097f73bccf5",
      "service": {
        "id": "376b38e5-913f-4ed0-9556-71c1b2584aca"
      },
      "enabled": true,
      "name": "prometheus",
      "protocols": [
        "grpc",
        "grpcs",
        "http",
        "https"
      ],
      "run_on": "first",
      "tags": null,
      "route": null,
      "config": {}
    }
}

```

**Step 3: Pull some metrics**

```
curl -i http://localhost:8001/metrics
HTTP/1.1 405 Not Allowed
Date: Wed, 18 Dec 2019 00:55:47 GMT
Content-Type: application/json; charset=utf-8
Connection: keep-alive
Access-Control-Allow-Origin: *
Server: kong/1.4.1
Content-Length: 32
X-Kong-Admin-Latency: 1

{"message":"Method not allowed"}

```

**Why am I getting “Method not allowed” when I try to pull metrics?**

Many thanks!

-Z

---

<div class="post-metadata">

**Author:** ![hbagdi](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/hbagdi/32/562_2.png) [@hbagdi](https://discuss.konghq.com/u/hbagdi)\
**Post date:** [December 18, 2019, 5:15pm UTC](https://discuss.konghq.com/t/prometheus-plugin-returning-405-method-not-allowed-on-metrics/5167/2 "2019-12-18T17:15:28Z")

</div>

Please upgrade to Kong 1.4.2.  
This was a bug in 1.4.1.

---

<div class="post-metadata">

**Author:** ![zorlack](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/zorlack/32/1577_2.png) [@zorlack](https://discuss.konghq.com/u/zorlack)\
**Post date:** [December 18, 2019, 9:36pm UTC](https://discuss.konghq.com/t/prometheus-plugin-returning-405-method-not-allowed-on-metrics/5167/3 "2019-12-18T21:36:00Z")

</div>

Hahah I thought I was going crazy.

Thanks!