84 lines
2.0 KiB
JavaScript
84 lines
2.0 KiB
JavaScript
const https = require('https');
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// Generic polyfill for "request" npm package, wrapper for https
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const nodeReq = ({ method, url, headers, qs, timeout, body }) => new Promise((resolve) => {
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let req;
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try {
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req = https.request(url + (qs != null ? `?${(new URLSearchParams(qs)).toString()}` : ''), { method, headers, timeout }, async (res) => {
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const loc = res.headers.location;
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if (loc) return resolve(await nodeReq({ url: loc, method, headers, timeout, body }));
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resolve(res);
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});
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} catch (e) {
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return resolve(e);
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}
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req.on('error', resolve);
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if (body) req.write(body); // Write POST body if included
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req.end();
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});
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const request = (...args) => {
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let options, callback;
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switch (args.length) {
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case 3: // request(url, options, callback)
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options = {
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url: args[0],
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...args[1]
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};
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callback = args[2];
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break;
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default: // request(url, callback) / request(options, callback)
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options = args[0];
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callback = args[1];
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}
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if (typeof options === 'string') {
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options = {
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url: options
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};
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}
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const listeners = {};
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nodeReq(options).then(async (res) => {
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if (!res.statusCode) {
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listeners['error']?.(res);
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return callback?.(res, null, null);
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}
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listeners['response']?.(res);
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let data = [];
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res.on('data', (chunk) => {
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data.push(chunk);
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listeners['data']?.(chunk);
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});
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await new Promise((resolve) => res.on('end', resolve)); // Wait to read full body
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const buf = Buffer.concat(data);
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callback?.(undefined, res, options.encoding !== null ? buf.toString() : buf);
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});
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const ret = {
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on: (type, handler) => {
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listeners[type] = handler;
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return ret; // Return self
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}
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};
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return ret;
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};
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for (const m of [ 'get', 'post', 'put', 'patch', 'delete', 'head', 'options' ]) {
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request[m] = (url, callback) => request({ url, method: m }, callback);
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}
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request.del = request.delete; // Special case
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module.exports = request; |