You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
509 B
36 lines
509 B
|
|
/**
|
|
* Module dependencies.
|
|
*/
|
|
|
|
var XHR = require('./polling-xhr');
|
|
var JSONP = require('./polling-jsonp');
|
|
|
|
/**
|
|
* Export transports.
|
|
*/
|
|
|
|
module.exports = exports = {
|
|
polling: polling,
|
|
websocket: require('./websocket')
|
|
};
|
|
|
|
/**
|
|
* Export upgrades map.
|
|
*/
|
|
|
|
exports.polling.upgradesTo = ['websocket'];
|
|
|
|
/**
|
|
* Polling polymorphic constructor.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
function polling (req) {
|
|
if ('string' === typeof req._query.j) {
|
|
return new JSONP(req);
|
|
} else {
|
|
return new XHR(req);
|
|
}
|
|
}
|
|
|