mirror of
https://github.com/tenrok/axios.git
synced 2026-05-15 11:59:42 +03:00
Niklas Närhinen
2f4d0b8b45
When data passed to axios is of type FormData we have to let the browser
create the Content-Type header so that the boundaries will get right
etc.
Usage:
```js
var data = new FormData();
data.append('field', 'some string');
data.append('file', someFile);
var opts = {
transformRequest: function(data) { return data; }
};
axios.post('/fileupload', data, opts);
```
100 lines
2.6 KiB
JavaScript
100 lines
2.6 KiB
JavaScript
var defaults = require('./../defaults');
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var utils = require('./../utils');
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var buildUrl = require('./../helpers/buildUrl');
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var cookies = require('./../helpers/cookies');
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var parseHeaders = require('./../helpers/parseHeaders');
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var transformData = require('./../helpers/transformData');
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var urlIsSameOrigin = require('./../helpers/urlIsSameOrigin');
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module.exports = function xhrAdapter(resolve, reject, config) {
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// Transform request data
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var data = transformData(
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config.data,
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config.headers,
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config.transformRequest
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);
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// Merge headers
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var headers = utils.merge(
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defaults.headers.common,
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defaults.headers[config.method] || {},
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config.headers || {}
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);
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if (utils.isFormData(data)) {
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delete headers['Content-Type']; // Let the browser set it
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}
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// Create the request
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var request = new(XMLHttpRequest || ActiveXObject)('Microsoft.XMLHTTP');
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request.open(config.method, buildUrl(config.url, config.params), true);
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// Listen for ready state
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request.onreadystatechange = function () {
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if (request && request.readyState === 4) {
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// Prepare the response
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var headers = parseHeaders(request.getAllResponseHeaders());
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var response = {
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data: transformData(
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request.responseText,
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headers,
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config.transformResponse
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),
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status: request.status,
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headers: headers,
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config: config
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};
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// Resolve or reject the Promise based on the status
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(request.status >= 200 && request.status < 300
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? resolve
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: reject)(response);
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// Clean up request
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request = null;
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}
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};
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// Add xsrf header
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var xsrfValue = urlIsSameOrigin(config.url)
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? cookies.read(config.xsrfCookieName || defaults.xsrfCookieName)
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: undefined;
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if (xsrfValue) {
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headers[config.xsrfHeaderName || defaults.xsrfHeaderName] = xsrfValue;
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}
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// Add headers to the request
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utils.forEach(headers, function (val, key) {
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// Remove Content-Type if data is undefined
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if (!data && key.toLowerCase() === 'content-type') {
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delete headers[key];
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}
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// Otherwise add header to the request
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else {
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request.setRequestHeader(key, val);
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}
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});
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// Add withCredentials to request if needed
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if (config.withCredentials) {
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request.withCredentials = true;
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}
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// Add responseType to request if needed
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if (config.responseType) {
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try {
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request.responseType = config.responseType;
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} catch (e) {
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if (request.responseType !== 'json') {
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throw e;
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}
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}
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}
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if (utils.isArrayBuffer(data)) {
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data = new DataView(data);
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}
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// Send the request
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request.send(data);
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}; |