cranker-router/http-client.js

A cranker router in Javascript.

// A simple promise based HTTP client for testing -*- js-indent-level: 4 -*-

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

exports.request = function(routerPort, formData) {
    return new Promise((resolve, reject) => {
        const fd = formData !== undefined ? formData : {};
        const encoded = querystring.stringify(fd);
        const headers = formData === undefined ? {} : {
            "content-type": "application/x-www-form-urlencoded",
            "content-length": Buffer.byteLength(encoded)
        };

        const options = {
            method: formData !== undefined ? "POST" : "GET",
            host: "localhost",
            port: routerPort,
            path: "/test",
            headers: headers
        };

        console.log(`>test http client starting ${options.method} ${options.host}:${options.port} ${options.path}`);
        const req = http.request(options, function (response) {
            console.log(
                ">test http client response received",
                options.method + " Request response headers",
                response.statusCode,
                response.statusMessage,
                response.headers,
                "request headers", headers
            );

            const resultObject = {
                statusCode: response.statusCode,
                statusMessage: response.statusMessage,
                headers: response.headers,
                chunkArray: []
            };

            response.on("data", (d) => {
                const string = new String(d);
                resultObject.chunkArray.push(string);
            });

            response.on("end", function () {
                resolve(resultObject);
            });
        });
        if (formData !== undefined) {
            console.log(">test http client going to write", encoded);
            req.write(encoded);
        }
        req.end();
    });
}

// End