I would like to send Time zone Offset in request header. But I have not find any way to do it.

My code is given below:

import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http';
import { Observable } from 'rxjs';
import { Injectable } from '@angular/core';
import { SessionProvider } from './session.provider';

@Injectable({ providedIn: 'root' })
export class TokenInterceptor implements HttpInterceptor {

  constructor(private provider: SessionProvider) {}

  intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    const update = addHeaders(req, this.provider.session);
    const request = req.clone(update);
    return next.handle(request);
  }
}

function addHeaders(req: HttpRequest<any>, session: any): any {
  let headers = req.headers;
  if (session?.stationId) {
    headers = headers.set('wid', session.stationId);
  }
  if (session?.accessToken) {
    headers = headers.set('Authorization', 'Bearer '   session.accessToken);
  }
  return { headers };
}

I want to add Time zone Offset in addHeaders function. If someone knows how it can be done them please share your thoughts

CodePudding user response：

It can be done as follow:

function addHeaders(req: HttpRequest<any>, session: any): any {
  let headers = req.headers;
  if (session?.stationId) {
    headers = headers.set('wid', session.stationId);
  }
  if (session?.accessToken) {
    headers = headers.set('Authorization', 'Bearer '   session.accessToken);
  }
  headers = headers.set('tz-offset', getTimeZoneOffset());

  return { headers };
}

function getTimeZoneOffset(): string {
  return String(new Date().getTimezoneOffset());
}