Signin(email: string, password: string): void {
    let data: Object = {
        client_id: 2,
        client_secret: 'vSFxVqALQHjyotPyGfhrGj3ziudUGsts2ZWiAGms',
        grant_type: 'password',
        username: email,
        password: password,
    };

    this._HTTP.post(
        this.OAuth + 'token',
        data,
        {headers: this.Headers}
    ).toPromise()
    .then( (_response) => {
       console.log (_response);
    });
}

LaravelPassportHttpMiddlewareCreateFreshApiToken::class,