paperless-ngx/src-ui/src/app/interceptors/api-version.interceptor.ts

import {
  HttpEvent,
  HttpHandlerFn,
  HttpInterceptorFn,
  HttpRequest,
} from '@angular/common/http'
import { Observable } from 'rxjs'
import { environment } from 'src/environments/environment'

export const withApiVersionInterceptor: HttpInterceptorFn = (
  request: HttpRequest<unknown>,
  next: HttpHandlerFn
): Observable<HttpEvent<unknown>> => {
  request = request.clone({
    setHeaders: {
      Accept: `application/json; version=${environment.apiVersion}`,
    },
  })
  return next(request)
}