import { HttpRequest, HttpHandler, HttpEvent, HttpInterceptor } from '@angular/common/http';
import { Observable } from 'rxjs';
import { AuthenticationService } from '../../services/authentication.service';
import { ConfigService } from '../../services/config.service';
import * as i0 from "@angular/core";
export declare class JwtInterceptor implements HttpInterceptor {
    private authenticationService;
    private config;
    constructor(authenticationService: AuthenticationService, config: ConfigService);
    /**
     * Add JWT token when available in request header
     * @param request
     * @param next
     */
    intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>>;
    static ɵfac: i0.ɵɵFactoryDeclaration<JwtInterceptor, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<JwtInterceptor>;
}
export declare let jwtInterceptorProvider: {
    provide: import("@angular/core").InjectionToken<HttpInterceptor[]>;
    useClass: typeof JwtInterceptor;
    multi: boolean;
};