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Prometheus instrumentation library for Go applications
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beorn7 64b4a9cf9d API client: Enable fallback on status code 501, too 
When discussing #801, I remembered #794. While dealing with the
latter, I read the HTTP RFC, stumbling upon the following:

    When a request method is received
    that is unrecognized or not implemented by an origin server, the
    origin server SHOULD respond with the 501 (Not Implemented) status
    code.  When a request method is received that is known by an origin
    server but not allowed for the target resource, the origin server
    SHOULD respond with the 405 (Method Not Allowed) status code.

Concluding from that, it is possible that a server desiring a fallback
to GET will send a status code of 501. It is even preferred if that
server does not offer any resource to be used with the POST method.

Therefore, I think we should fallback to GET on a 501, too.

Signed-off-by: beorn7 <beorn@grafana.com>
 		2020-09-10 13:14:07 +02:00
.circleci Support go 1.15 2020-08-17 20:00:44 +02:00
.github Release v0.9.0 2018-10-15 13:28:28 +02:00
api API client: Enable fallback on status code 501, too 2020-09-10 13:14:07 +02:00
examples Fix typo in doc comment 2020-01-27 15:46:39 +01:00
prometheus Remove spurious commas from links to the docs site 2020-09-07 22:31:29 +02:00
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CHANGELOG.md Cut v1.7.1 2020-06-23 20:16:09 +02:00
CODE_OF_CONDUCT.md Update common Prometheus files 2020-06-23 00:08:53 +00:00
CONTRIBUTING.md Mention the DCO in the contributing guide 2018-05-31 14:22:30 +00:00
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README.md

Prometheus Go client library

Build Status Go Report Card go-doc

This is the Go client library for Prometheus. It has two separate parts, one for instrumenting application code, and one for creating clients that talk to the Prometheus HTTP API.

This library requires Go1.9 or later. The minimum required patch releases for older Go versions are Go1.9.7 and Go1.10.3.

Important note about releases and stability

This repository generally follows Semantic Versioning. However, the API client in prometheus/client_golang/api/… is still considered experimental. Breaking changes of the API client will not trigger a new major release. The same is true for selected other new features explicitly marked as EXPERIMENTAL in CHANGELOG.md.

Features that require breaking changes in the stable parts of the repository are being batched up and tracked in the v2 milestone. The v2 development happens in a separate branch for the time being. v2 releases off that branch will happen once sufficient stability is reached. In view of the widespread use of this repository, v1 and v2 will coexist for a while to enable a convenient transition.

Instrumenting applications

code-coverage go-doc

The prometheus directory contains the instrumentation library. See the guide on the Prometheus website to learn more about instrumenting applications.

The examples directory contains simple examples of instrumented code.

Client for the Prometheus HTTP API

code-coverage go-doc

The api/prometheus directory contains the client for the Prometheus HTTP API. It allows you to write Go applications that query time series data from a Prometheus server. It is still in alpha stage.

Where is model, extraction, and text?

The model packages has been moved to prometheus/common/model.

The extraction and text packages are now contained in prometheus/common/expfmt.

Contributing and community

See the contributing guidelines and the Community section of the homepage.