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Explanation

A CRUD REST API supports Create, Read, Update, and Delete operations for a resource.

Code:

Create → POST
Read   → GET
Update → PUT
Delete → DELETE

Explanation

Create a user by accepting a JSON request body through a POST endpoint.

Code:

@app.post('/users')
def create_user():
    data = request.get_json()
    return {'message': 'User created', 'data': data}, 201

Explanation

Retrieve all users using a GET endpoint.

Code:

@app.get('/users')
def get_users():
    return {
        'users': []
    }

Explanation

Update a specific user using a PUT endpoint with a path parameter.

Code:

@app.put('/users/<int:id>')
def update_user(id):
    data = request.get_json()
    return {
        'id': id,
        'updated': data
    }

Explanation

Delete a specific user using a DELETE endpoint.

Code:

@app.delete('/users/<int:id>')
def delete_user(id):
    return {'message': f'User {id} deleted'}