shields/doc/badge-urls.md

Badge URL Conventions

• The format of new badges should be of the form /SERVICE/NOUN/PARAMETERS?QUERYSTRING e.g: /github/issues/:user/:repo. The service is github, the badge is for issues, and the parameters are :user/:repo.
• Parameters should always be part of the route if they are required to display a badge e.g: :packageName.
• Common optional params like, :branch or :tag should also be passed as part of the route.
• Query string parameters should be used when:
  • The parameter is related to formatting. e.g: /appveyor/tests/:user/:repo?compact_message.
  • The parameter is for an uncommon optional attribute, like an alternate registry URL.
  • The parameter triggers application of alternative logic, like version semantics. e.g: /github/v/tag/:user/:repo?sort=semver.
  • Services which require a url/hostname parameter always should use a query string parameter to accept that value. e.g: /discourse/topics?server=https://meta.discourse.org.

It is convention to use the following standard routes and abbreviations across services:

• Coverage: /coverage
• Downloads or Installs:
  • Total: /dt - Use this even for services that only provide the total download/install data
  • Per month: /dm
  • Per week: /dw
  • Per day: /dd
• Rating:
  • Numeric: /rating
  • Stars: /stars
• License: /l
• Version or Release: /v