OpenSearchlight

A JavaScript OpenSearch client that configures itself around an OpenSearch Description Document, making queries against OpenSearch services a little easier from JS clients.

Download

Download the minified version or the development version.

Usage

Assuming you're trying to use an OpenSearch service whose OSDD at http://www.example.com/opensearch?description contains the following:

<?xml version="1.0" encoding="UTF-8"?>
 <OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
   <ShortName>Web Search</ShortName>
   <Description>Use Example.com to search the Web.</Description>
   <Url type="application/atom+xml"
        template="http://example.com/?q={searchTerms}&amp;pw={startPage?}&amp;n={resultsPerPage?}&amp;format=atom"/>
   <Url type="text/html"
        template="http://example.com/?q={searchTerms}&amp;pw={startPage?}&amp;n={resultsPerPage?}"/>
   <Query role="example" searchTerms="cat" />
 </OpenSearchDescription>

In your web page, the following code will retrieve search results for "steely", in ATOM format, starting at the second page with ten results per page:

<script src="jquery.js"></script>
<script src="OpenSearchlight.min.js"></script>
<script>
OpenSearchlight.query({
   osdd: "http://www.example.com/opensearch?description",
   contentType: "application/atom+xml",
   requestHeaders: [{name: "X-Requested-With", value: "MyApp"}],
   parameters: {
      searchTerms: "steely",
      startPage: "2",
      resultsPerPage: "10"
   },
   success: function (data) {
      // data contains results!
   },
   error: function (jqXHR, textStatus, errorThrown) {
      // error handling...
   }
});
</script>

Documentation

See the annotated source.

License

OpenSearchlight is licensed under the MIT license. See LICENSE.txt.

Credit

This software was developed by the National Snow and Ice Data Center, sponsored by National Science Foundation grant number OPP-10-16048.

Release History

• 0.4.0
  • Added optional requestHeaders parameter to OpenSearchQuery
• 0.3.0
  • OSDD fetch will now call error callback on request failure.
• 0.2.3
  • Added an optional callback function in OpenSearchQuery API
• 0.2.2
  • Upgraded to Grunt 0.4
• 0.2.1
  • Added a simpler API
  • Fixed a bug handling optional parameters
• 0.1.2
  • Fixed bug preventing empty optional parameters from being filled with empty string
  • Added Release Checklist to documentation
• 0.1.1
  • Documentation fixes
• 0.1.0
  • Initial release

OpenSearchlight uses semantic versioning.

Developer Notes

Please don't edit files in the dist subdirectory as they are generated via grunt. You'll find source code in the src subdirectory!

While grunt can run the included unit tests via PhantomJS, this shouldn't be considered a substitute for the real thing. Please be sure to test the test/*.html unit test file(s) in actual browsers.

Release Checklist

• Make change to code
• Update version number in OpenSearchlight.pkg.json
• In README.md update version numbers in Download and Release History sections
• Run grunt and ensure all tests pass (run git submodule update --init first)
• Run grunt docs to generate updated source documentation
• Run test/*.html in the browser and ensure all tests pass
• Check changes in to Git master
• Make changes to the gh-pages branch:
  • Add the new minified and development .js file
  • Update index.html (and docco.css if necessary) from dist/docs/OpenSearchlight-<VERSION>.html

Install and Build

This assumes you have node.js and npm installed already.

1. Ensure all git submodules have been retrieved: git submodule update --init
2. Test that grunt is installed globally by running grunt --version at the command-line.
3. If grunt isn't installed globally, run npm install -g grunt-cli to install the latest version. You may need to run sudo npm install -g grunt-cli.
4. From the root directory of this project, run npm install to install the project's dependencies.
5. Run grunt from the root directory to run the tests and build the packages and documentaion.

How to contact NSIDC

User Services and general information:
Support: http://support.nsidc.org
Email: [email protected]

Phone: +1 303.492.6199
Fax: +1 303.492.2468

Mailing address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder, CO 80309-0449 USA