How can I automate route prefixing in my Flask application?

Automating Route Prefixing in Flask Applications

When working with Flask, one may encounter the need to add a prefix to all application routes. Manually appending a constant to each route, as demonstrated below, can become tedious.

PREFIX = "/abc/123"

@app.route(PREFIX + "/")
def index_page():
  return "This is a website about burritos"

@app.route(PREFIX + "/about")
def about_page():
  return "This is a website about burritos"

Fortunately, Flask provides a convenient solution to this issue through the use of blueprints. By organizing routes into a blueprint, as shown below, you can define a common prefix for all routes within the blueprint.

bp = Blueprint('burritos', __name__,
                        template_folder='templates')

@bp.route("/")
def index_page():
  return "This is a website about burritos"

@bp.route("/about")
def about_page():
  return "This is a website about burritos"

Subsequently, register the blueprint with the Flask application using the desired prefix:

app = Flask(__name__)
app.register_blueprint(bp, url_prefix='/abc/123')

This approach ensures that all routes within the 'burritos' blueprint will automatically inherit the '/abc/123' prefix, providing a more efficient and maintainable way to manage route prefixes in Flask applications.

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