Typescript string template engine

url-template-service.ts

import { cloneDeep } from 'lodash';

class UrlTemplateService {

  private readonly urlsMap = {
    serviceA: {
      example1: (p: { customerCode: string }) => this.replace('one.parameter/${customerCode}', p),
      pathB: (p: { more: string, parameter: string }) => this.replace('two.more.example/${more}/${parameter}/${more}', p)
    },
    serviceB: {
      create: () => 'no.parameter.example',
    }
  };

  public getMap(){
    return cloneDeep(this.urlsMap);
  }

  private replace(url: string, params: { [key: string]: string }) {
    let finalUrl = url;
    const keys = Object.keys(params);
    for (const k of keys) {
      const re = new RegExp("\\$\\{" + k+ "\\}","g");
      finalUrl = finalUrl.replace(re, params[k]);
    }
    return finalUrl;
  }

}

// Then it can be inject/used like this:

const urlMap = new UrlTemplateService().getMap();
console.log(urlMap.serviceA.pathB({more: 'mm', parameter: 'pp'}));
// two.more.example/mm/pp/mm