Add support for swagger v2 json import

[paulovila]

When I try to import a swagger file it says: Extension not supported | .json | swagger.json The file is like:

[dpaulino]

Thanks @paulovila for the github issue! I will look into this soon.

[dpaulino]

@paulovila did some investigations. Looks like you're trying to import a swagger v2 json file, which Nightingale does not support right now. It only supports swagger/openapi v3 yaml files.

[dpaulino]

If you'd like, we can rename this issue to "add support for swagger v2 json import" and I can try to add this when I get some time

[dpaulino]

I just open sourced Nightingale's swagger/openapi converter code. If anyone wants to help add this feature, I'd be extremely grateful! Here is the swagger code: https://github.com/jenius-apps/nightingale-core/tree/master/src/Nightingale.Converters/Swagger

[Insire]

@paulovila did some investigations. Looks like you're trying to import a swagger v2 json file, which Nightingale does not support right now. It only supports swagger/openapi v3 yaml files.

it would be great, if the file picker would reflect the fact, that you expect a yaml file there. The error message doesnt state either, what is expected there.