Dynamically generate Flask routes

Question

I am trying to dynamically generate routes in Flask from a list. I want to dynamically generate view functions and endpoints and add them with add_url_rule.

Answer 1

You have one problem with two possible solutions. Either:

1. Have route[func] directly reference a function, not a string. In this case, you don't have to assign anything to app.view_functions.

Or:

2. Leave out the third argument of app.add_url_rule, and assign a function to app.view_functions[route["page"]]. The code

   return render_template("index.html")
   

   is not a function. Try something like

   def my_func():
       return render_template("index.html")
   # ...
   app.view_functions[route["page"]] = my_func
   

I'd recommend the first option.

Source: the docs.

---

Alternate solution:

Use variable parts in the URL. Something like this:

@app.route('/')
def index(page):
  if page=='about':
     return render_template('about.html') # for example
  else:
     some_value = do_something_with_page(page) # for example
     return render_template('index.html', my_param=some_value)