如何从带有Angular 6参数的服务器获取URL

Question

i'am trying to get an URL from java backend in my angular's application,i have to pass the number of the folder inside the URL in order to get a list from that folder, what's the appropriate fomat that i should write ? how to personalize it in order to accept any number of folder , for this example 255

this's the URL

enter code here

public DD_LIST = '/app/api/demandes/225/listesdemanedes';

and the service is :

enter code here   getlistes(): Observable<any> {
const api = {method : 'GET', url : this.DD_LIST };
return  this.http.request(api, null).pipe(
  map(response => ({
      content: response
  }))
);

}

Answer 1

Use javascript string interpolation to form the URL as like below,

let folderNumber = 225;
public DD_LIST = `/app/api/demandes/${folderNumber}/listesdemanedes`;