TYPESCRIPT

get query params from url angular

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

export class ExampleComponent implements OnInit {

  constructor(private router: ActivatedRoute) { }

  ngOnInit() {
    this.router.queryParams.subscribe(res=>{
      console.log(res) //will give query params as an object
    })
  }

}

angular set query params

constructor(private router: Router) { }

public myMethodChangingQueryParams() {
  const queryParams: Params = { myParam: 'myNewValue' };

  this.router.navigate(
    [], 
    {
      relativeTo: activatedRoute,
      queryParams: queryParams, 
      queryParamsHandling: 'merge', // remove to replace all query params by provided
    });
}

how to add query parameter to url in angular

navigateToFoo(){
     this._router.navigate([], {
      queryParams: {
        newOrdNum: '123'
      },
      queryParamsHandling: 'merge',
    });
   }

how to add query parameter to url in angular

// Make sure to import and define the Angular Router and current Route in your constructor
constructor(
  private router: Router,
  private route: ActivatedRoute
) {}

...
...
...

// Take current queryParameters from the activated route snapshot
const urlParameters = Object.assign({}, this.route.snapshot.queryParams); 

// Need to delete a parameter ?
delete urlParameters.parameterName;

// Need to add or updated a parameter ?
urlParameters.parameterName = newValue;

// Update the URL with the Angular Router with your new parameters
this.router.navigate([], { relativeTo: this.route, queryParams: urlParameters });

angular list of query params

export class ComponentA {

  // We need access to the Angular router object to navigate programatically
  constructor(private router: Router){}

  navigateWithArray(): void {
    // Create our query parameters object
    const queryParams: any = {};
    // Create our array of values we want to pass as a query parameter
    const arrayOfValues = ['a','b','c','d'];

    // Add the array of values to the query parameter as a JSON string
    queryParams.myArray = JSON.stringify(arrayOfVAlues);

    // Create our 'NaviationExtras' object which is expected by the Angular Router
    const navigationExtras: NavigationExtras = {
      queryParams
    };

    // Navigate to component B
    this.router.navigate(['/componentB'], navigationExtras);
  }

}

set query params angular in http

getFilteredPersonalBookmarks(searchText: string, limit: number, page: number, userId: string, include: string): Observable<Bookmark[]> {
    const params = new HttpParams()
      .set('q', searchText)
      .set('page', page.toString())
      .set('limit', limit.toString())
      .set('include', include);
    return this.httpClient.get<Bookmark[]>(`${this.personalBookmarksApiBaseUrl}/${userId}/bookmarks`,
      {params: params})
      .pipe(shareReplay(1));
  }