Optional routes in Flask

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Optional routes in Flask

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#1 by (2 votes)

2

Is there any way to make optional routes?

For example:

@app.route(r'/contacts/<key>/<name>?', methods=['GET'])
def contact_deatils(key, name = None):
   print(key, name)

   return 'mensaje de prueba'

if you place parameters to the routes yes, but also that it is optional for example. I have this in routes '/contacts/<key>/<name>?' if I place the url /contacts/1/ , that will let me see the page, but I get an error and it forces me to place the two parameters. And when placing the url /contacts/1/nombre/ , also show me the page

python python-3.x flask

asked by Albert Arias 26.03.2018 в 23:26

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1 answer

Join repeated items in a list Create a ListView and DetailView with two models

score 2 · Accepted Answer

It is possible to use multiple routes for the same function so that you have something like this:

@app.route('/contacts/<key>/', methods=['GET'])
@app.route('/contacts/<key>/<name>', methods=['GET'])
def contact_deatils(key, name=None):
   # ...

You may have to validate, within the function, the parameters you have received. In this case key will always be present but name may be None :

@app.route('/contacts/<key>/', methods=['GET'])
@app.route('/contacts/<key>/<name>', methods=['GET'])
def contact_deatils(key, name=None):
   # ...
   if not name:
       # Hacer algo 
   else:
       # Hacer otra cosa

It's simple.

By the way, I do not think "raw string" is necessary for routes: r'...'