Im using this:
import { HttpParams } from '@angular/common/http'; let params = new HttpParams(); params.append('newOrdNum','123');
But this is not working, i dont append param in url. Any suggestion?
Query parameters are a defined set of parameters attached to the end of a url. They are extensions of the URL that are used to help define specific content or actions based on the data being passed. To append query params to the end of a URL, a '? ' Is added followed immediately by a query parameter.
Passing multiple parameters to Http get request We have to pass page & per_page parameters to the list of users API. let queryParams = new HttpParams(); queryParams = queryParams. append("page",1); queryParams = queryParams. append("per_page",1);
Query parameters are used to pass optional params to the Angular route.
import ActivatedRoute from '@angular/router'. Inject ActivatedRoute class in constructor. Access queryParams property of ActivatedRoute class which returns an observable of the query parameters that are available in the current URL route.
This could be archived by using the Router
class:
Using a component:
import { Router, ActivatedRoute } from '@angular/router'; @Component({}) export class FooComponent { constructor( private _route: ActivatedRoute, private _router: Router ){} navigateToFoo(){ // changes the route without moving from the current view or // triggering a navigation event, this._router.navigate([], { relativeTo: this._route, queryParams: { newOrdNum: '123' }, queryParamsHandling: 'merge', // preserve the existing query params in the route skipLocationChange: true // do not trigger navigation }); } }
For more info check this book and the angular Router API
I had to adjust Jota.Toledos answer a bit so that it works for me, I had to take out the second and the last property of the extras - object:
navigateToFoo(){ this._router.navigate([], { queryParams: { newOrdNum: '123' }, queryParamsHandling: 'merge', }); }
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