How can I implement security in a Flask RESTful API?

How can I implement security in a Flask RESTful API?

You can implement security in a Flask RESTful API by using authentication methods like JWT, OAuth, or API keys.

What is JWT and how does it work?

JWT, or JSON Web Token, is a compact, URL-safe means of representing claims to be transferred between two parties. It allows you to verify the token's authenticity and the user's identity.

Can you show me an example of using JWT in Flask?

Sure! You can use the pyjwt library to create and verify JWTs. Here's a simple example:

import jwt
from flask import Flask, request

app = Flask(__name__)
app.config['SECRET_KEY'] = 'your_secret_key'

@app.route('/login', methods=['POST'])
def login():
    username = request.json['username']
    token = jwt.encode({'user': username}, app.config['SECRET_KEY'], algorithm='HS256')
    return {'token': token}