@coolio/http
Version:
HTTP networking client
114 lines • 4.75 kB
JavaScript
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
import { HttpResponseHeaders } from '../httpResponseHeaders';
import { encodeText, getEncodingFromHeaders } from '../helpers/encoder.helper';
import { HttpRequestError } from '../httpRequestError';
import { CFormData } from '../formData';
import { sanitizeHeaders } from '../helpers';
const HEADERS_RECEIVED = 2;
const DONE = 4;
const createAsyncBodyHandler = () => {
let isCalled = false;
let onBodyReceived;
let bodyGetter;
let onBodyFailure;
let bodyFailer;
const promise = new Promise((resolve, reject) => {
onBodyReceived = resolve;
onBodyFailure = reject;
});
return {
call: () => {
isCalled = true;
if (bodyGetter) {
onBodyReceived(bodyGetter());
}
else if (bodyFailer) {
onBodyFailure(bodyFailer());
}
return promise;
},
onBodyReceived: (getter) => {
if (isCalled) {
onBodyReceived(getter());
}
else {
bodyGetter = getter;
}
},
onBodyFailure: (failer) => {
if (isCalled) {
onBodyFailure(failer());
}
else {
bodyFailer = failer;
}
},
};
};
export const xhrRequestHandler = (_) => (requestOptions) => __awaiter(void 0, void 0, void 0, function* () {
if (typeof XMLHttpRequest === 'undefined') {
throw new Error('XMLHttpRequest is not present. Prior to using xhrRequestHandler, make sure that you included necessary polyfills.');
}
return new Promise((resolve, reject) => {
const isCors = requestOptions.mode === 'cors';
const req = new XMLHttpRequest();
if (isCors) {
req.withCredentials = true;
}
req.open(requestOptions.method, requestOptions.url, true);
req.responseType = 'arraybuffer';
req.timeout = requestOptions.timeout;
req.ontimeout = () => {
reject(new HttpRequestError(requestOptions, `Request timed out after ${requestOptions.timeout}ms.`));
};
const isFormData = CFormData.isFormData(requestOptions.body);
const body = isFormData
? CFormData.from(requestOptions.body, { forceImplementation: 'native' })
: requestOptions.body;
const formDataHeaderOverride = isFormData ? { 'content-type': undefined } : undefined;
const headers = sanitizeHeaders(requestOptions.headers, formDataHeaderOverride);
for (const key in headers) {
if (headers.hasOwnProperty(key)) {
req.setRequestHeader(key, headers[key]);
}
}
const bodyHandler = createAsyncBodyHandler();
req.onerror = () => {
const error = new Error('XHR Request Error');
reject(error);
bodyHandler.onBodyFailure(() => error);
};
req.onreadystatechange = () => {
let response;
switch (req.readyState) {
case HEADERS_RECEIVED:
resolve(response = {
arrayBuffer: bodyHandler.call,
text: () => bodyHandler.call()
.then(buffer => encodeText(buffer, getEncodingFromHeaders(response === null || response === void 0 ? void 0 : response.headers))),
abort: () => req.abort(),
url: requestOptions.url,
headers: new HttpResponseHeaders(req.getAllResponseHeaders()),
ok: req.status > 0 && req.status < 400,
status: req.status,
statusText: req.statusText,
redirected: false,
});
break;
case DONE:
bodyHandler.onBodyReceived(() => req.response);
break;
}
};
req.send(body);
});
});
//# sourceMappingURL=xhr.requestHandler.js.map