Implement Google reCAPTCHA Validation using Python in Odoo

odoo_google_recaptcha_validation.py

# -*- coding: utf-8 -*-
from openerp import http
from openerp.http import Controller, route, request
import json
import requests


class Google_Recaptcha(http.Controller):
    @http.route('/google_recaptcha_in_odoo/', type='http', auth='public', website=True)
    def google_recaptcha(self, redirect=None, **kw):
		if request.httprequest.method == 'POST':
			client_key = kw['g-recaptcha-response']
			secret_key = 'your_secretkey_goes_here'
			captcha_data = {
				'secret': secret_key,
				'response': client_key
			}
			r = requests.post('https://www.google.com/recaptcha/api/siteverify', data=captcha_data)			
			response = json.loads(r.text)
			verify = response['success']
			if verify:
				# your logic goes here
				return request.render('module_name.your_form_template', {
					'key_1': 'Test',
					'key_2': kw,
				})

For details: https://learnopenerp.blogspot.com/2020/11/implement-google-recaptcha-validation-odoo-python.html