a simple promise returning request function for http and https get, post

01-request.js

const http = require("http");
const https = require("https");

function request(options) {
  return new Promise((resolve, reject) => {
    const { url, data, ...rest } = options;
    const parsedURL = new URL(url);

    const isHTTPS = parsedURL.protocol === "https:";
    const lib = isHTTPS ? https : http;

    const reqOptions = {
      ...rest,
      ...(data
        ? {
            headers: { ...(rest.headers || {}), "Content-Length": data.length },
          }
        : {}),
    };

    const request = lib.request(url, reqOptions, (response) => {
      if (response.statusCode < 200 || response.statusCode > 299) {
        reject(
          new Error("Failed to load page, status code: " + response.statusCode)
        );
      }

      const body = [];
      response.on("data", (chunk) => body.push(chunk));
      response.on("end", () => resolve(body.join("")));
    });

    request.on("error", (err) => reject(err));

    if (data) {
      request.write(data);
    }

    request.end();
  });
}

02-example.md

GET

await request({
  url: "https://postman-echo.com/get",
  method: "GET"
})

POST

await request({
  url: "https://postman-echo.com/post",
  method: "POST",
  data: JSON.stringify({ hello: 'world' }),
  headers: {
        "Content-Type": "application/json",
  },
})