How to pass a param to HttpInterceptor?

Question

I am using Angular 4.3.1 and HttpClient. There is an HttpInterceptor to set some headers.

In some http get requests I need to set a different header. Is there anywa

Answer 1

You can use setParam option of request.

export class WebReqInterceptor implements HttpInterceptor {
stringifiedData: any;  
intercept(request: HttpRequest, next: HttpHandler): Observable {
    if (window.sessionStorage.getItem('token')) {
        this.stringifiedData=JSON.parse(window.sessionStorage.getItem('token'));
        request = request.clone({
            setParams:{
                access_token:this.stringifiedData.access_token
            }                          
        });
        return next.handle(request);
    }
    else{
        return next.handle(request);
    }
}

}