bandwidth_visulization-2.js

    // axios GET request
    componentDidMount(){
        axios.get('http://127.0.0.1:8000/api/bandwidth')
        .then(response => {
            // console.log(response.data);

            // set Initial data
            this.setState({
                data: response.data,
                loaded: true
            })
        })
    }

// ...

    // Submit event
    handleSubmit = (event) => {
    event.preventDefault();
    const data = new FormData(event.target);
    // const [device_uuid, end_time, window_time, num_windows] = [data.get('device_uuid'), data.get('end_time'), data.get('window_time'), data.get('num_windows')]
    const [end_time, window_time, num_windows] = [data.get('end_time'), data.get('window_time'), data.get('num_windows')]