/
dispatchRequest.js
70 lines (60 loc) · 1.73 KB
/
dispatchRequest.js
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'use strict';
var utils = require('./../utils');
var transformData = require('./transformData');
/**
* Dispatch a request to the server using whichever adapter
* is supported by the current environment.
*
* @param {object} config The config that is to be used for the request
* @returns {Promise} The Promise to be fulfilled
*/
module.exports = function dispatchRequest(config) {
// Ensure headers exist
config.headers = config.headers || {};
// Transform request data
config.data = transformData(
config.data,
config.headers,
config.transformRequest
);
// Flatten headers
config.headers = utils.merge(
config.headers.common || {},
config.headers[config.method] || {},
config.headers || {}
);
utils.forEach(
['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
function cleanHeaderConfig(method) {
delete config.headers[method];
}
);
return new Promise(function executor(resolve, reject) {
try {
var adapter;
if (typeof config.adapter === 'function') {
// For custom adapter support
adapter = config.adapter;
} else if (typeof XMLHttpRequest !== 'undefined') {
// For browsers use XHR adapter
adapter = require('../adapters/xhr');
} else if (typeof process !== 'undefined') {
// For node use HTTP adapter
adapter = require('../adapters/http');
}
if (typeof adapter === 'function') {
adapter(resolve, reject, config);
}
} catch (e) {
reject(e);
}
}).then(function onFulfilled(response) {
// Transform response data
response.data = transformData(
response.data,
response.headers,
config.transformResponse
);
return response;
});
};