# Coveo JavaScript Search Framework - Reference Documentation

# Search UI

Coveo JavaScript Search UI Framework

## Installation

You should install the Coveo JavaScript Search UI Framework as an npm package:

    npm install --save coveo-search-ui

All resources will be available under `node_modules/coveo-search-ui/bin`. You can include those in your pages with `<script>` tags. This will make the variable `Coveo` globally available in your page.

If you are using a module bundler (Browserify, Webpack, rollup, etc.), you can use `require('coveo-search-ui')` or `import * as Coveo from 'coveo-search-ui'`.

Alternatively, you can download the Coveo JavaScript Search UI Framework (see Downloading the JavaScript Search Framework).

## Including the Resources from a CDN

Since the April 2017 release, it is possible to access the resources of any specific Coveo JavaScript Search Framework official release (from version `1.2537` on) through a content delivery network (CDN).

You can simply use a URL such as `https://static.cloud.coveo.com/searchui/v[VERSION]/[PATH_TO_FILE]`, where you replace `[VERSION]` by the actual release version number you wish to use and `[PATH_TO_FILE]` by the path of the file you require.

For quick access to the latest CDN links, see JavaScript Search Framework CDN Links.

Example:

> The following tags include the `1.2537` version (April 2017 release) of the `CoveoJsSearch.min.js`, `templateNew.js` and `CoveoFullSearchNewDesign.css` files.

>     <head>

>       [ ... ]

>       <script src="https://static.cloud.coveo.com/searchui/v1.2537/js/CoveoJsSearch.min.js"></script>
>       <script src="https://static.cloud.coveo.com/searchui/v1.2537/js/templates/templatesNew.js"></script>
>       <link rel="stylesheet" href="https://static.cloud.coveo.com/searchui/v1.2537/css/CoveoFullSearchNewDesign.css" />

>       [ ... ]

>      </head>

## Basic Usage

    <!-- Include the library scripts. -->
    <script src="js/CoveoJsSearch.js"></script>
    <script src="js/templates/templates.js"></script>

    <!-- Each DOM element with a class starting with "Coveo" (uppercase) will instantiate a component. -->
    <body id="search" class='CoveoSearchInterface'>

        <!-- Each DOM element with a class starting with "coveo-" (lowercase) is strictly for CSS/alignment purpose. -->
        <div class='coveo-search-section'>

            <!-- Any Coveo component can be removed (or added); none is actually required for the page to "load". -->
            <div class="CoveoSearchbox"></div>
        </div>

        <!-- The "data-" attributes of each component allow you to pass options to this specific component instance. -->
        <div class="CoveoFacet" data-title="Author" data-field="@author" data-tab="All"></div>
        <div class="CoveoFacet" data-title="Year" data-field="@year" data-tab="All"></div>
        <script>
            // The following line shows you how you could configure an endpoint against which to perform your search.
            // Coveo.SearchEndpoint.configureCloudEndpoint('MyCoveoCloudEnpointName', 'my-authentification-token');

            // We provide a sample endpoint with public sources for demo purposes.
            Coveo.SearchEndpoint.configureSampleEndpoint();

            // Initialize the framework by targeting the root in the interface.
            // It does not have to be the document body.
            Coveo.init(document.body);
        </script>
    </body>

You can find more examples of fully configured pages in the `./pages` folder.

A tutorial is available to help you get started (see Coveo JavaScript Search UI Framework Getting Started Tutorial).

## Build

You should have node 10.x installed to build this project.

    npm install -g yarn
    yarn global add gulp
    yarn install
    gulp

## Important Gulp Tasks

- `gulp default`: Builds the entire project (CSS, templates, TypeScript, etc.)
- `gulp compile`: Builds only the TypeScript code and generates its output in the `./bin` folder.
- `gulp unitTests`: Builds and runs the unit tests.
- `gulp doc`: Generates the documentation website for the project.
- `gulp dev`: Starts a webpack dev server for the project.
- `gulp devTest`: Starts a webpack dev server for the unit tests.

## Dev Server

Make sure you were able to run `gulp` entirely without any errors first. Then you can start the dev-server:

    gulp dev

This will start a webpack-dev-server instance (see Webpack Dev Server).

You can now load http://localhost:8080/index.html in a web browser.

Any time you hit Save in a source file, the bundle will be recompiled and the dev page will reload.

If you need to modify the content of the search page (i.e., the markup itself, not the TypeScript code), modify the `index.html` page under `./bin`. This page is not committed to the repository, so you do not have to worry about breaking anything. However, if you feel like you have a good reason to modify the original `index.html`, feel free to do so.

You might need to assign more memory to Webpack if you see errors about `heap out of memory`. To do so, use this command :

    node --max_old_space_size=8192 ./node_modules/gulp/bin/gulp.js dev;

### Tests

Tests are written using Jasmine. You can use `npm run test` to run the tests in Chrome Headless.

If you wish to write new unit tests, you can do so by starting a new webpack-dev-server instance.

To start the server, run `gulp devTest`.

Load http://localhost:8081/tests/SpecRunner.html.

Every time you hit Save in a source file, the dev server will reload and re-run your tests.

Code coverage will be reported in `./bin/coverage`

## Documentation

General reference documentation is generated using TypeDoc (see Coveo JavaScript Search UI Framework - Reference Documentation). The generated reference documentation lists and describes all available options and public methods for each component.

Handwritten documentation with more examples is also available (see Coveo JavaScript Search UI Framework Home).

A tutorial is also available (see Coveo JavaScript Search UI Framework Getting Started Tutorial). If you are new to the Coveo JavaScript Search UI Framework, you should definitely consult this tutorial, as it contains valuable information.

You can also use Coveo Search to find answers to any specific issues/questions (see the Coveo Community Portal).

## Issues and questions

Please use the Coveo community to ask questions or to search for existing solutions.