app.py

# -*- coding: utf-8 -*-
from flask import Flask, request, render_template, url_for, json
app = Flask(__name__)

dataForSearch = ["ActionScript", "AppleScript",
      "Asp", "BASIC", "C", "C++", "Clojure", "COBOL", "ColdFusion", "Erlang", "Fortran", "Groovy",
      "Haskell", "Java", "JavaScript", "Lisp", "Perl", "PHP", "Python", "Ruby", "Scala", "Scheme"]

@app.route("/")
def index():
	return render_template("index.html")

@app.route("/login")
def login():
	return render_template("login.html", title='Login')

@app.route("/loader")
def loader():
    return render_template("loader.html", title='Loading...')

@app.route("/main")
def main():
    return render_template("main.html", title='Main', dataForSearch=dataForSearch)

@app.route("/get_node_children", methods=["POST", "GET"])
def get_node_children():
	print(request.get_json()["name"]) # make here db query

	with open('./static/data/additionalData.json', 'r', encoding='utf-8') as f:
		data_json = json.load(f)
		# print(data_json)
	return json.dumps(data_json, ensure_ascii=False)

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