Как использовать Ajax в Flask?

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pip install flask-ajax

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from flask import Flask, render_template
from flask_ajax import Ajax

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app = Flask(__name__)
ajax = Ajax(app)

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@app.route('/ajax')
def ajax():
    return render_template('ajax.html')

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    Ajax Example
    
    
  
  
    Ajax Example
    
      
      Submit
    
    
      $(document).ready(function() {
        $('#submit-btn').click(function(event) {
          event.preventDefault(); // предотвращаем стандартное поведение формы
          $.ajax({
            url: '/ajax',
            type: 'POST',
            data: {
              name: $('#name').val()
            },
            success: function(response) {
              alert(response);
            },
            error: function(error) {
              console.log(error);
            }
          });
        });
      });
    
  

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@app.route('/ajax', methods=['POST'])
def ajax_response():
    name = request.form['name']
    return f'Hello, {name}!'

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