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

Pretty simple with pymysql:

from flask import Flask, request, render_template
import pymysql

db = pymysql.connect("localhost", "username", "password", "database")

app = Flask(__name__)
api = Api(app)

@app.route('/')
def someName():
    cursor = db.cursor()
    sql = "SELECT * FROM table"
    cursor.execute(sql)
    results = cursor.fetchall()
    return render_template('index.html', results=results)

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

In your index.html file just do something like:

<% for row in results %}
      
         {{ row[0] }}
         {{ row[1] }}
         {{ row[2] }}
         {{ row[3] }}
      
{% endfor %}