Angular. Получить params и queryParams одновременно
Допустим необходимо из url /auth/{session}?server={id} достать session и id. Для такой задачи подходит rxjs оператор combineLatest: 
combineLatest(
  this._activatedRoute.params,
  this._activatedRoute.queryParams
)Он отправит массив из 2 элементов.
import { ChangeDetectionStrategy, Component, OnDestroy, OnInit } from '@angular/core';
import { ActivatedRoute } from '@angular/router';
import { combineLatest, Subscription } from 'rxjs';
@Component({
  selector: 'my-selector',
  template: `LOADING...`,
  changeDetection: ChangeDetectionStrategy.OnPush,
})
export class MyComponent implements OnInit, OnDestroy {
  private _routerSubscription: Subscription;
  constructor(private _activatedRoute: ActivatedRoute) {}
  ngOnInit(): void {
    // params забирает session, queryParams - id
    this._routerSubscription = combineLatest(
      this._activatedRoute.params,
      this._activatedRoute.queryParams
    ).subscribe(([session, id]) => {
      console.log(session, id);
    });
  }
  ngOnDestroy(): void {
    if (this._routerSubscription) {
      this._routerSubscription.unsubscribe();
    }
  }
}