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put HTTP requests in a tasks-queue to execute them sequentially but not too often

Getting Started

Install the module with:

npm install request-queue



The class for the HTTP request queue. Inherits from TasksQueue. It hides the methods TasksQueue.prototype.pushTask and TasksQueue.prototype.unshiftTask. Use RequestQueue.prototype.pushRequest() and RequestQueue.prototype.unshiftRequest() methods instead.

RequestQueue depends on the following modules:


Set default options for the request. See request.defaults(). See also Encoding issue below.


Add scripts paths or URLs that are passed to jsdom.env as scripts option.


Return an array of paths added with addScripts(paths).

pushRequest(requestType, requestOptions)

unshiftRequest(requestType, requestOptions)

addRequest(where, requestType, requestOptions)

Insert a request to the queue.

pushRequest(t, o) is equivalent to addRequesr('tail', t, o). unshiftRequest(t, o) is equivalent to addRequesr('head', t, o).

If where equals to 'head', addRequest() prepends the request to the head of the queue, otherwise it appends it to the tail.

requestType is a string, used to distinguish the different types of requests. Don't use strings that start with double colon ("::type").

requestOptions are passed to request(requestOptions, callback) that does the actual http request.

requestType event

The requestType event is emitted when the response is retrieved and the DOM construction is done. Listeners are called with three arguments:

Encoding issue

request fails to work with encodings that are not supported by ReadebleStream. request-queue uses iconv to solve that. It uses the response header "content-type" to detect the encoding name. If no charset is specified in "content-type" header, 'utf8' is used. Optionally you may override the encoding, using queue.setRequestDefaults({encoding:<your encoding>});. Note, that <your encoding> is used by iconv, while {encoding:"binary"} option is passed to request.


See examples directory


In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.

Release History

  • April 17, 2013. V. 0.0.2 Fixed encoding issue

  • April 1, 2013. V. 0.0.1. Basic functionality


Copyright (c) 2013 Andrei V. Toutoukine Licensed under the MIT license.