Add Validation to Path Parameters

[ParentJA]

Django lets you add validation to path parameters in its URL config.

# Using django.urls.path
'tenant/<uuid:tenant_uuid>/'

# Using django.urls.re_path
r'tenant/(?P<tenant_uuid>[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{8})/'

I'd like something similar in Minik.

[incognos]

Stop torturing him @ParentJA :-) - question, why use this framework instead of Serverless https://www.serverless.com ? Up https://up.docs.apex.sh ? Architect https://arc.codes/guides/offline? You might want to add yourself to https://github.com/anaibol/awesome-serverless

[pdiazvargas]

@incognos great resources indeed! however, using a nodejs library to write python serverless API is not ideal at all. Also, if you're interested in python frameworks, I would actually suggest https://github.com/aws/chalice

The main purpose of this project was to create a minimal serverless framework. This means it will not have full feature parity with django or flask, but it will be functional and lightweight.
Give it a try!

[pdiazvargas]

Using metadata annotations seems to be a really natural fit for this type of feature. After a few iterations, this is how the route definition looks like:

@sample_app.route('/articles/{year}/{month}/', methods=['GET'])
def get_articles_view(year: int, month: int):
    # match /articles/2015/10/
    # match /articles/2020/5234 which is not ideal.
    # does not match /articles/2020/ten
    assert isinstance(year, int) and isinstance(month, int)
    return {'year': year, 'month': month}

Note that in order to implement the uuid, I was able to use the standard uuid.UUID class. The added advantage is that the product_id field that gets passed to the view is already an instance of the object.

@sample_app.route('/product/{product_id}/', methods=['GET'])
def get_product(product_id: uuid.UUID):
    assert isinstance(product_id, uuid.UUID)
    return {'id': str(product_id)}

Thoughts?