axios.post('http://localhost:3000/api/v1/login', {
                email: this.state.email,
                password: this.state.password
            }, {
                    headers: {
                        "Access-Control-Allow-Origin": "*",
                        "Access-Control-Allow-Credentials": true,
                        "Access-Control-Allow-Methods": "GET,HEAD,OPTIONS,POST,PUT,DELETE",
                        "Access-Control-Allow-Headers": "",
                    }
                })
                .then(function (response) { this.onloginSuccess(response) })
                .catch(function (error) { this.onLoginFail(error)});

onloginSuccess = (response) => {
        console.log(response)
        this.setState({
            buttonDisable: false
        });

        sessionStorage.setItem('uuid', response.value.data.uuid)
        sessionStorage.setItem('bearertoken', response.value.data.bearertoken)


        this.props.history.push({ pathname: '/dashboard' })
    }

onloginFail = (error) => {
        NotificationManager.error(error.response.data.message, 'Error!', 5000);
        this.setState({
            buttonDisable: false
        });
    }

Uncaught (in promise) TypeError: Cannot read property 'onLoginFail' of undefined
    at eval (index.js?8a7d:95)

index.js?8a7d:94 Uncaught (in promise) TypeError: Cannot read property 'onloginSuccess' of undefined
    at eval (index.js?8a7d:94)