A simple fetch module.

fetch.js

// HTTPS API
import https from "https";

/**
 * Executes an HTTP request
 * @param {string | URL} url The url
 * @returns {Promise<any>} The response
 */
export default (url, { method, headers, data } = {}) => new Promise((res, rej) => {

  // Starts a new HTTPS request
  let req = https.request(url, { method, headers, data }, r/*es*/ => {

    // Stores data
    let data = "";

    // Stores data chunks
    r.on("data", chunk => data += chunk);

    // Sends response on end of request
    r.on("end", () => {

      // If the format was JSON, parse(with test) and return
      if (/^application\/json/.test(r.headers["content-type"]))
        try { return res(JSON.parse(data)); }
        catch(err) { console.log(`JSON Parse on content of type ${r.headers["content-type"]} failed.\nError: ${err}\nData: ${data}`); }

      // Sends raw data as response
      res(data);
    });

  }).on("error", rej);
  
  // If there is data to be sent, send it
  if(data) req.write(data);

  // Sends the request
  req.end();
});

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