Cognito / Flask / React: how to log into backend?

import ReactDOM from 'react-dom';
import React, {Component} from 'react';
class Form1 extends Component{
    render(){
        return (
            <div class="form">
                <form action="http://localhost:5000/result" method="get">
                    Place: <input type="text" name="place"/>
                    <input type="submit" value="Submit"/>
                </form>
            </div>
        );
    }
}
ReactDOM.render(
    <Form1/>,
    document.getElementById('root')
);

from flask import Flask, request

app = Flask(__name__)

@app.route('/result', methods = ['GET', 'POST'])
def result():
    if request.method == 'GET':
        place = request.args.get('place', None)
        if place:
            return place
        return "No place information is given"

if __name__ == '__main__':
    app.run(debug = True)

 <div id="parent">
           <div dangerouslySetInnerHTML={template}/>
            <form>
             <input type='text' name='name' onChange={this.handleChange}/><br/>
             <button type="button" onClick={this.handleSubmit} />
           </form>
 </div>

const config = {
            headers: {'Access-Control-Allow-Origin': '*'}
        };

        axios.post('http://localhost:5000/api/newquestion', this.state, config)
        .then(response => {
            console.log(response)
            this.setState({questionResult: response.data,            isLoaded: true})
        })
        .catch(error => {
            console.log(error)
        })

@app.route("/api/newquestion", methods=['POST'])
@cross_origin(origin='*',headers=['Content-Type'])
def get_user_question():
    data = request.get_json()
    question = data['question']
    result = generate_text(question)
    return jsonify(result)