Requête Http en caractères d'imprimerie

J'ai essayé de convertir le fragment de code suivant dans nodejs pour tapuscrit: Comment puis-je faire de Requête Http en Nodejs

Voici mon Tapuscrit code:

import * as http from 'http';
export class HttpRequest{
url: string;
private path: string;
private host: string;
private args: Array<Array<string>>;
constructor(url: string, args?: string){
this.url = url;
this.processUrl(this.url);
if(!!args){
this.processArgs(args);
}
this.args = [];
}
private processUrl(url: string): void {
let tld: number = url.lastIndexOf('.')
let sep: number = url.indexOf('/', tld);
this.host = url.slice(0, sep);
this.path = url.slice(sep+1);
}
private processArgs(args: string): void {
let sep: number = args.indexOf('&');
if(sep < 0){
return ;
}
let argpair: string = args.slice(0, sep);
let apsep: number = argpair.indexOf('=');
let k: string = argpair.slice(0, apsep);
let v: string = argpair.slice(apsep+1);
this.args.push([k,v]);
this.processArgs(args.slice(sep+1));
}
private preparePath(): string {
let path: string = `?`;
this.args.forEach((arg: Array<string>, i: number): void => {
let k: string = arg[0];
let v: string = arg[1];
path += k + '=' + v;
if(i == this.args.length-1){
return ;
}
path += '&';
});
return path;
}
public addArg(key: string, value: string): void {
try{
this.args.push([key,value]);
} catch(err) {
console.log(err);
}
}
public addArgs(args: Array<Array<string>>): void {
args.forEach((arg: Array<string>): void => {
this.args.push(arg);
});
}
public get(cb: (res: any) => any): void {
let opts = {
'host': this.host,
'path': `/${this.path}/${this.preparePath()}`
};
http.request(opts, (r: http.IncomingMessage): void => {
let data = '';
r.on('data', (chunk: string): void => {
console.log('Got chunk: ' + chunk);
data += chunk;
});
r.on('end', (): void =>{
console.log('Response has ended');
console.log(data);
cb(data);
});
r.on('error', (err): void => {
console.log('Following error occured during request:\n');
console.log(err);
})
}).end();
}
public test(): void {
console.log(this.preparePath());
console.log(`/${this.path}/${this.preparePath()}`);
}
}

Voici mon code de test:

//Test httpRequest
import { HttpRequest } from './httpRequest';
const request = new HttpRequest('www.random.org/integers');
request.addArg('num', '1');
request.addArg('min', '1');
request.addArg('max', '50');
request.addArg('col', '1');
request.addArg('base', '10');
request.addArg('format', 'plain');
request.addArg('rnd', 'new');
request.test();
request.get((res: string): void => {
console.log('Response received: ' + res);
});

Si cela fonctionne correctement (j'ai vérifié le lien sur Firefox et, il renvoie à un texte en clair le nombre aléatoire) je devrais obtenir un nombre en texte brut. Cependant, quand je console.log() réponse, je ne reçois rien. Ce que je fais mal ici?