telegraf http input plugin

Question

I am trying to create a proof on concept using the TICK stack for monitoring. I have the helloworld stack running and showing CPU/Docker metrics.

I am trying to use the telegraf http input plugin to pull from an http endpoint:

From the docs i have simply configured the URL, GET and type (Set to json)

[[inputs.http]]
## One or more URLs from which to read formatted metrics
urls = [
"http://localhost:500/Queues"
]
method = "GET"
data_format = "json"

However nothing appears in Influx/Chronograf. I can modify the endpoint to suit any changes there, but what am i doing wrong in telegraf config ?

I am having a similar issue with this plugin: https://community.influxdata.com/t/when-using-tick-charts-telegraf-s-i-cannot-use-the-inputs-http-plugin/4740 — gaigepr, Apr 12 '18 at 22:02

score 1 · Answer 1 · answered May 21 '21 at 14:37

I think I had the same struggle. For me the following conf worked:

[[inputs.http]]
name_override ="restservice_health"
urls = [
   "https://localhost:5001/health"
]
method = "GET"
data_format = "value"
data_type = "string"

In this way, it appeared in Influxdb under the name "restservice_health" (allthough this option is not important for the example, so you could leave it out).

score 0 · Answer 2 · answered Jul 16 '20 at 15:48

First, you would have to look at the result of the http://localhost:500/Queues request to make sure that it's a valid JSON object. Then, depending on what is returned from that endpoint, you may have to configure the JSON parser, for example by setting json_query to a GJSON query to navigate the JSON response to the data you need.

telegraf http input plugin

2 Answers2