Flask extension does not support application root

[deckar01]

The flask extension only outputs the route path, but flask.url_for() takes into consideration that the path should be prefixed with the configured APPLICATION_ROOT path. apispec/ext/flask.py#L58

• http://flask.pocoo.org/docs/0.10/config/#builtin-configuration-values
• https://github.com/pallets/flask/blob/9f1be8e/flask/helpers.py#L309
• https://github.com/pallets/flask/blob/2bf477c/flask/app.py#L1761

[sloria]

Thanks for reporting.

I would welcome a PR for this.

[deckar01]

Looking into the implementation. 👓

I would like to lean on the url_adapter interface as much as possible to avoid replicating the internal implementation of flask and insulate the extension against future changes.