Using MySQL in Flask

Question

Can someone share example codes in Flask on how to access a MySQL DB? There have been documents showing how to connect to sqlite but not on MySQL.

Thank you very muc

Answer 1

Easy with Mysql,

1. Create db with following command

   CREATE TABLE MyUsers ( firstname VARCHAR(30) NOT NULL,  lastname VARCHAR(30) NOT NULL);
   

2. Copy paste below code in app.py file

   from flask import Flask, render_template, request 
   from flask_mysqldb import MySQL
   
   app = Flask(__name__)
   
   
   app.config['MYSQL_HOST'] = 'localhost'
   app.config['MYSQL_USER'] = 'root'
   app.config['MYSQL_PASSWORD'] = 'root'
   app.config['MYSQL_DB'] = 'MyDB'
   
       mysql = MySQL(app)
   
   
   @app.route('/', methods=['GET', 'POST'])
   def index():
       if request.method == "POST":
           details = request.form
           firstName = details['fname']
           lastName = details['lname']
           cur = mysql.connection.cursor()
           cur.execute("INSERT INTO MyUsers(firstName, lastName) VALUES (%s, %s)", (firstName, lastName))
           mysql.connection.commit()
           cur.close()
           return 'success'
       return render_template('index.html')
   
   
   if __name__ == '__main__':
          app.run()