basicOThttp.ts

import { request } from 'urllib';

export class OTRestAPI {
    user: string;
    pass: string;
    csurl: string;
    otdsurl: string;
    ticket: string | null = null;
  
  constructor(user: string, pass: string, csurl: string, otdsurl: string) {
        this.user = user;
        this.pass = pass;
        this.csurl = csurl;
        this.otdsurl = otdsurl;
   }

	async login() {
        try {
            const url = `${this.otdsurl}/otdsws/v1/authentication/credentials`;
            const body = {
                user_name: this.user,
                password: this.pass,
                ticket_type: 'OTDSTICKET'
            };
            let options: urllib.RequestOptions = {
                method: 'POST',
                maxRedirects: 10,
                data: body,
                contentType: 'json',
                dataType: 'json'
            }
            const req = await request(url, options);
            this.ticket = req.data.ticket;
            return Promise.resolve();

        } catch (error) {
            console.error(`Error: OTRestAPI.login`);
            console.error(error);
            return Promise.reject(error);
        }
    }

}