how to set headers to application/json in angular2

Question

I am trying to send HTTP post request in Angular2 but not able to set headers to content type application JSON.

My code is:

login(url,postdata)
{
            


        

Answer 1

Try this code:

private _getHeaders():Headers {
   let header = new Headers({
     'Content-Type': 'application/json'
   });

   return header;
}



public login(url, postdata){
   let options = new RequestOptions({
      headers: this._getHeaders()
   });
   return this.http.post(url, JSON.stringify(postdata),options).map(res => res.json());
}