Nested Blueprints in Flask?

Question

I\'m still new to Flask, so there may be an obvious way to accomplish this, but I haven\'t been able to figure it out so far from the documentation. My app is divided into s

Answer 1

Here is my workaround:

When importing a blueprint, I define my nested routes:

app.register_blueprint(product_endpoints, url_prefix='/sites//menus//categories//products/')
app.register_blueprint(category_endpoints, url_prefix='/sites//menus//categories/')
app.register_blueprint(menu_endpoints, url_prefix='/sites//menus/')
app.register_blueprint(site_endpoints, url_prefix='/sites/')

And inside the blueprints, I'm reusing route parse functions. For example, in the product_endpoints file:

from category_endpoints import get_category_data

product_endpoints = Blueprint('product_endpoints', __name__)

@product_endpoints.url_value_preprocessor
def get_product_data(endpoint, values):
    if 'category_id' in values:
        get_category_data(endpoint, values)

    product = Product.get_by_id(int(values.pop('product_id')))

    if not product:
        abort(404)

    g.product = product

and in category_endpoints file:

from menu_endpoints import get_menu_data

category_endpoints = Blueprint('category_endpoints', __name__)

@category_endpoints.url_value_preprocessor
def get_category_data(endpoint, values):
    if 'menu_id' in values:
        get_menu_data(endpoint, values)
    category = ProductCategory.get_by_id(int(values.pop('category_id')))

    if not category:
        abort(404)

    g.category = category

etc... With that approach, my blueprint is also usable with direct routes like /products/.

This approach worked for me very well. I hope it can also help you.