Auth Service

auth.service.ts

@Injectable()
export class AuthService {
    ...
   
    validate(pattern: string, route: string): void {

        let body: AuthBody = { type: "Anonymous", payload: pattern };

        // Fire off a request to the server to see if the pattern entered is valid
        this.postAuth(body)
            .then((success: boolean) => {
                if (success) {
                    // Result was good, close the modal
                    this.doneAuth$.next();
                    // And move to wherever we were tring to go
                    this.router.navigateByUrl(route);
                } else {
                    // Pattern was rejected
                    this.errorAuth$.next("pattern");
                }
            })
            .catch(this.handleError);
    }
    
    private postAuth(body: AuthBody): Promise<boolean> {
        // Send the request and payload
        return this.http.post(this.authURL, body)
            .toPromise()
            .then((res: Response) => {
                if (res.json().success as boolean) {
                    // On success save the token
                    localStorage.setItem(this.tokenName, res.json().token);                    
                }
                // Report the success or failure of the request
                return res.json().success as boolean;
            })
            .catch(this.handleError);
    }
}