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    7.25.0 • Public • Published


    Blacklight is an open source Solr user interface discovery platform. You can use Blacklight to enable searching and browsing of your collections. Blacklight uses the Apache Solr search engine to search full text and/or metadata. Blacklight has a highly configurable Ruby on Rails front-end. Blacklight was originally developed at the University of Virginia Library and is made public under an Apache 2.0 license.


    Add Blacklight to your Gemfile:

    gem "blacklight"

    Run the install generator which will copy over some initial templates, migrations, routes, and configuration:

    rails generate blacklight:install

    Documentation, Information and Support


    • Ruby 2.2+
    • Bundler
    • Rails 5.2+

    Contributing Code

    Code contributions are always welcome, instructions for contributing can be found at

    Configuring Apache Solr

    You'll also want some information about how Blacklight expects Apache Solr to run, which you can find in README_SOLR

    Building the javascript

    The javascript is built by npm from sources in app/javascript into a bundle in app/assets/javascripts/blacklight/blacklight.js. This file should not be edited by hand as any changes would be overwritten. When any of the javascript components in the gem are changed, this bundle should be rebuild with the following steps:

    1. Install npm
    2. run npm install to download dependencies
    3. run npm run js-compile-bundle to build the bundle
    4. run npm publish to push the javascript package to

    Using the javascript

    Blacklight ships with Javascript that can be compiled either by Webpacker or by Sprockets. To use Webpacker see the directions at

    If you prefer to use Sprockets, simply run the install generator, which will run the assets generator. For details see




    npm i blacklight-frontend

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