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‎python-flask-ajax-mysql-registration/app.py

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from flask import Flask
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app = Flask(__name__)
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#app.secret_key = "secret key"

‎python-flask-ajax-mysql-registration/dao.py

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import pymysql
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from db_config import mysql
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from werkzeug import generate_password_hash, check_password_hash
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def user_exist(email):
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conn = None;
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cursor = None;
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try:
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conn = mysql.connect()
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cursor = conn.cursor()
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sql = "SELECT email FROM user WHERE email=%s"
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sql_where = (email,)
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cursor.execute(sql, sql_where)
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row = cursor.fetchone()
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if row:
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return True
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return False
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except Exception as e:
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print(e)
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finally:
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if cursor and conn:
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cursor.close()
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conn.close()
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def register(email, name, pwd):
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conn = None;
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cursor = None;
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try:
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conn = mysql.connect()
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cursor = conn.cursor()
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sql = "INSERT INTO user(name, email, pwd) VALUES(%s, %s, %s)"
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data = (name, email, generate_password_hash(pwd),)
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cursor.execute(sql, data)
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conn.commit()
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except Exception as e:
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print(e)
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finally:
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if cursor and conn:
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cursor.close()
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conn.close()

‎python-flask-ajax-mysql-registration/db_config.py

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from app import app
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from flaskext.mysql import MySQL
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mysql = MySQL()
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# MySQL configurations
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app.config['MYSQL_DATABASE_USER'] = 'root'
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app.config['MYSQL_DATABASE_PASSWORD'] = 'root'
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app.config['MYSQL_DATABASE_DB'] = 'roytuts'
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app.config['MYSQL_DATABASE_HOST'] = 'localhost'
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mysql.init_app(app)

‎python-flask-ajax-mysql-registration/main.py

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import rest
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from app import app
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from flask import render_template
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@app.route('/')
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def home():
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return render_template('signup.html')
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if __name__ == "__main__":
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app.run()

‎python-flask-ajax-mysql-registration/readme.rst

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You can read tutorial https://www.roytuts.com/jquery-ajax-based-registration-system-using-python-flask-mysql/

‎python-flask-ajax-mysql-registration/rest.py

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import dao
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import json
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from app import app
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from flask import jsonify, request
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@app.route('/signup', methods=['POST'])
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def signup():
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_json = request.json
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_name = _json['name']
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_email = _json['email']
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_pwd = _json['password']
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if _email and _name and _pwd:
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user_exist = dao.user_exist(_email)
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if user_exist == True:
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resp = jsonify({'message' : 'User already registered'})
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resp.status_code = 409
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return resp
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else:
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dao.register(_email, _name, _pwd)
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resp = jsonify({'message' : 'User registered successfully'})
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resp.status_code = 201
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return resp
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else:
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resp = jsonify({'message' : 'Bad Request - invalid parameters'})
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resp.status_code = 400
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return resp

‎python-flask-ajax-mysql-registration/static/js/register.js

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$(document).ready(function() {
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$('#signupSubmit').on('click', function(e) {
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e.preventDefault();
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var name = $('#fullname').val();
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var email = $('#email').val();
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var pwd = $('#password').val();
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var cnfpwd = $('#cnfpassword').val();
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var regex = /^([a-zA-Z0-9_.+-])+\@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/i;
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if(email != "" && pwd != "" && cnfpwd != "") {
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if(pwd != cnfpwd) {
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$('#msg').html('<span style="color: red;">Password and confirm password must match</span>');
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} else if(!regex.test(email)) {
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$('#msg').html('<span style="color: red;">Invalid email address</span>');
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} else {
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$.ajax({
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method: "POST",
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url: '/signup',
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contentType: 'application/json;charset=UTF-8',
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data: JSON.stringify({'name': name, 'email': email, 'password': pwd}),
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dataType: "json",
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success: function(data) {
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$('#signupform').hide();
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$('#msg').html('<span style="color: green;">You are registered successfully</span>');
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},statusCode: {
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400: function() {
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$('#msg').html('<span style="color: red;">Bad request parameters</span>');
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},
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409 : function() {
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$('#msg').html('<span style="color: red;">You are already registered user</span>');
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}
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},
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error: function(err) {
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console.log(err);
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}
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});
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}
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} else {
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$('#msg').html('<span style="color: red;">All fields are required</span>');
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}
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});
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});

‎python-flask-ajax-mysql-registration/templates/signup.html

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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>jQuery AJAX based Registration System using Python Flask MySQL</title>
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<script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
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<script type="text/javascript" src="{{ url_for('static', filename='js/register.js') }}"/>
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<script type="text/javascript">
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$SCRIPT_ROOT = {{ request.script_root|tojson|safe }};
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</script>
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</head>
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<body>
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<div style="width: 500px; margin: auto;">
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<div id="msg"></div>
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<div style="clear: both;"></div>
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<div id="signupform" style="width: 500px; margin: auto;">
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<h2>Sign Up</h2>
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<dl>
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<p>
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<input id="fullname" value="" type="text" placeholder="Full Name" required>
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</p>
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<p>
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<input id="email" value="" type="text" placeholder="Email" required>
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</p>
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<p>
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<input id="password" value="" type="password" placeholder="Password" autocomplete="off" required>
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</p>
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<p>
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<input id="cnfpassword" value="" type="password" placeholder="Confirm Password" autocomplete="off" required>
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</p>
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</dl>
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<p>
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<input type="button" id="signupSubmit" value="Submit">
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</p>
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</div>
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</div>
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</body>
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</html>

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