same url_prefix for two flask blueprints

Question

I want to implement simple site layout:

/ must render home.html

/one, /two, /three must render one.html, two.html, three.html correspondingly

So far I came up with following code:

main_page = Blueprint('main', __name__)
category_page = Blueprint('category', __name__)


@main_page.route("/")
def home():
    return render_template('home.html')


@category_page.route('/<category>')
def show(category):
    return render_template('{}.html'.format(category))

app = Flask(__name__)
app.register_blueprint(main_page, url_prefix='/')
app.register_blueprint(category_page, url_prefix='/categories')

This way I am able to route categories to /categories/<category>. How can I route them to just /<category> instead, while keeping home.html linked to /? Appreciate your help

I tried two approaches:

1. Setting url_prefix='/' for both blueprints => second one does not work.

2. Instead of main_page blueprint use just app.route('/') to render home.html. This one also does not work when mixing with category_page blueprint

Answer 1

You can move the variable to the url_prefix parameter inside the registering statement :

@main_page.route("/")
def home():
    return render_template('home.html')
app.register_blueprint(main_page, url_prefix='/')

@category_page.route('/')
def show(category):
    return render_template('{}.html'.format(category))        
app.register_blueprint(category_page, url_prefix='/<category>')

(it depends on the complexity of the whole pattern, but it may be better to keep the registering statements with the variables close to each function to handle many views.)