Sanic: Swagger/OpenAPI Support

[channelcat]

It would be nice to have Swagger/OpenAPI support. I'm not sure what the most intuitive way to implement this is.

Some examples, for inspiration:

• Flask-swagger - Uses YAML appended to docstring
• Connexion - Reads YAML swagger doc files and hosts a swagger UI

[eseglem]

From the looks of it Flask-swagger should basically just work for sanic. Not nearly the features of Connexion, but a good start. You could probably just import Flask-swagger and use it. Since its just parsing the actual python file, and doesn't do anything flask specific.

[awiddersheim]

Another place you might want to get inspiration from:

• https://github.com/noirbizarre/flask-restplus

It can be somewhat opinionated about how to build things but has some nice features IMO.

[brunoalano]

See #380

[seemethere]

Closed by @channelcat's extension here: https://github.com/channelcat/sanic-openapi

[brucechou1983]

Is there any swagger-first extension for Sanic?

[ioggstream]

I'm writing a PoC of Sanic+Connexion https://github.com/zalando/connexion/pull/1250/files