How to pass variables in URL while getting data from backend in angular?

Question

public getQuestionsById(qid:number): Observable<Questions>{
 return this.httpClient.get<Questions> 
  ('http://localhost:9090/angular/questions/${qid}');
  
}

Here, I want to concatenate the "qid" variable value in this URL. What should be the right format for that?

Answer 1

You just have to use Template literals for that. Check the basics you are just using wrong operator. please not use single quote here, use backquot for that.

public getQuestionsById(qid:number): Observable<Questions>{
    return this.httpClient.get<Questions>(`http://localhost:9090/angular/questions/${qid}`);
     
   }

Best of luck :)

link : https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals