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Prometheus Formatter

Browser extension which makes plain Prometheus/OpenMetrics output easier to read.

This extension is a simple syntax highlighter for Prometheus and OpenMetrics formats. For the highlighting to work, metric endpoints must use either HTTP Content-Type application/openmetrics-text or text/plain. For plain-text metrics, parsing is limited by default on URL paths matching '/metrics', '/federate', '/probe', '/prometheus' and '/actuator/prometheus'. By clicking on the extension's icon, you can define your own paths (Regular Expressions are supported), which will override the default list.

Before:

After:

For highlighting in the terminal: promcolor.

Installation

Option 1 – install it from the web store:

Option 2 – install it from source:

  • Clone or download this repo
  • Google Chrome or Microsoft Edge:
    • Go to chrome://extensions/ respectively edge://extensions/,
    • enable "Developer mode",
    • click "Load unpacked extension",
    • select the extension folder in this repo.
  • Firefox:
    • Go to about:addons
    • From the Cog-Menu on the right choose "Install Add-On From File …"

License

MIT