Recursive function for getting route params from the Angular router snapshot

getFullTreeParams.ts

import { ActivatedRoute } from '@angular/router';

export function getFullTreeParams(route: ActivatedRoute, params = {}) {
  if (route) {
    params = {...params, ...route.snapshot.params};
  }
  return route.parent
    ? this.getFullTreeParams(route.parent, params)
    : params;
}

Should make a version of this that uses paramMap instead of params.