Flask API Get Method – Fetch All Users

In this article, we will discuss how to use the Flask API Get method to fetch all users from a database.

Prerequisites

Before we begin, make sure you have the following:

• Python installed on your computer
• Flask library installed
• A database with a table of users

Creating the API Endpoint

First, we need to create a Flask application with an API endpoint to fetch all users. Here’s an example of a simple Flask application with a GET method to fetch all users from a database:

      
from flask import Flask, jsonify
import sqlite3

app = Flask(__name__)

@app.route('/users', methods=['GET'])
def get_users():
    conn = sqlite3.connect('database.db')
    cursor = conn.cursor()
    cursor.execute('SELECT * FROM users')
    users = cursor.fetchall()
    conn.close()
    return jsonify({'users': users})

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

In the code above, we have created a Flask application with an endpoint /users that handles GET requests. The endpoint retrieves all users from a database and returns a JSON response with the list of users.

Testing the API Endpoint

To test the API endpoint, you can use a tool like Postman or simply make a GET request to the /users endpoint using a web browser or command-line tool like cURL.

Conclusion

In this article, we have discussed how to use the Flask API Get method to fetch all users from a database. By creating a simple Flask application with a GET method, we can easily retrieve data from a database and return it as a JSON response. This can be useful for building APIs to provide data to client applications or other services.