Blueprints

As your application grows, putting everything in one file becomes unmanageable. Blueprints allow you to organize your code into reusable modules.

The Concept

A Blueprint is like a mini-application. It can have its own routes, templates, and static files. However, it cannot run on its own; it must be registered with a BustAPI application.

Defining a Blueprint

File: routes/auth.py

from bustapi import Blueprint

# Create the blueprint
auth_bp = Blueprint("auth", url_prefix="/auth")

@auth_bp.route("/login")
def login():
    return "Login Page"

@auth_bp.route("/logout")
def logout():
    return "Logout Page"

Registering a Blueprint

File: app.py

from bustapi import BustAPI
from routes.auth import auth_bp

app = BustAPI()

# Register the blueprint
app.register_blueprint(auth_bp)

# Logic is now served at /auth/login and /auth/logout

Recommended Structure

For medium-sized projects, we recommend a package-based structure.

/myproject
    __init__.py
    app.py
    /blueprints
        __init__.py
        auth.py
        admin.py
        api.py
    /static
    /templates