Sending POST requests using AJAX (via JavaScript)to a Python Backend (via Flask)

Published: 12 April 2021
on channel: ZeroLife

21k

244

//JavaScript Part//
var xml = new XMLHttpRequest();
xml.open("POST","{{url_for('func.func')}}",true);
xml.setRequestHeader("Content-type","application/x-www-form-urlencoded");

xml.onload = function(){
var dataReply = JSON.parse(this.responseText);
};//endfunction

dataSend= JSON.stringify({
'page_data':'some_data'
});

xml.send(dataSend);

//Python Part//

import os
from flask import Flask, Blueprint, jsonify
from project import app

path_cwd = os.path.dirname(os.path.realpath(__file__))
path_templates = os.path.join(path_cwd,"templates")
path_static = os.path.join(path_cwd,"static")

Func = Blueprint('func', __name__, static_folder=path_static, template_folder=path_templates)
methods=['GET','POST'])
def func():

dataGet = '' if not request.get_json(force=True) else request.get_json(force=True)

dataReply = {'backend_data':'some_data'}

return jsonify(dataReply)

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