index.py

# -*- coding: utf-8 -*-
"""
Created on Fri Feb  2 22:41:33 2024

@author: jun_chen
"""

from flask import Flask, jsonify, request


app = Flask(__name__)

@app.route('/file-concat/file_select', methods=['GET', 'POST'])
def file_select():
    from tkinter import Tk
    from tkinter.filedialog import askopenfilename
    root = Tk()
    root.withdraw()
    # ensure the file dialog pops to the top window
    root.wm_attributes('-topmost', 1)
    fname = askopenfilename(parent=root)
    return jsonify({'filepath': fname})



#start the flask app.
app.run(host ='localhost', port = 5000)