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add restricted registry documentation #968

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merged 6 commits into from Oct 24, 2023
Merged

add restricted registry documentation #968

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f533910
add restricted registry documentation
remijouannet Oct 19, 2023
3c9065c
remove curl verbose in readme
remijouannet Oct 24, 2023
5f2633c
show example for generate_latest
remijouannet Oct 24, 2023
cc43fe0
Update README.md
remijouannet Oct 24, 2023
eba0e01
Update README.md
remijouannet Oct 24, 2023
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Update README.md
remijouannet Oct 24, 2023
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Expand Up @@ -737,6 +737,39 @@ for family in text_string_to_metric_families(u"my_gauge 1.0\n"):
print("Name: {0} Labels: {1} Value: {2}".format(*sample))
```

## Restricted registry

Registry support querying a specific metric with the GET parameter "name[]".
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Since it's an array it can be use multiple times.

```python
curl -v --get --data-urlencode "name[]=python_gc_objects_collected_total" --data-urlencode "name[]=python_info" http://127.0.0.1:9200/metrics
* About to connect() to 127.0.0.1 port 9200 (#0)
* Trying 127.0.0.1...
* Connected to 127.0.0.1 (127.0.0.1) port 9200 (#0)
> GET /metrics?name[]=python_gc_objects_collected_total&name[]=python_info HTTP/1.1
> User-Agent: curl/7.29.0
> Host: 127.0.0.1:9200
> Accept: */*
>
* HTTP 1.0, assume close after body
< HTTP/1.0 200 OK
< Date: Thu, 19 Oct 2023 10:00:38 GMT
< Server: WSGIServer/0.2 CPython/3.9.3
< Content-Type: text/plain; version=0.0.4; charset=utf-8
< Content-Length: 454
<
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# HELP python_info Python platform information
# TYPE python_info gauge
python_info{implementation="CPython",major="3",minor="9",patchlevel="3",version="3.9.3"} 1.0
# HELP python_gc_objects_collected_total Objects collected during gc
# TYPE python_gc_objects_collected_total counter
python_gc_objects_collected_total{generation="0"} 73129.0
python_gc_objects_collected_total{generation="1"} 8594.0
python_gc_objects_collected_total{generation="2"} 296.0
* Closing connection 0
```

## Links

* [Releases](https://github.com/prometheus/client_python/releases): The releases page shows the history of the project and acts as a changelog.
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