Support configurable OAUTH redirect URLs

[thedumbterminal]

Is your feature request related to a problem? Please describe. Currently when using oauth the redirect URL is hardcoded here:

https://github.com/python-restx/flask-restx/blob/master/flask_restx/templates/swagger-ui.html#L55

The included oauth2-redirect.html is fine unless you are implementing OAUTH on the server side where you need logic such as creating a user account etc.

Describe the solution you'd like I'd like to set my own OAUTH redirect URL so after the OAUTH dance I can create user accounts, for example using flask-security. This could be done via an flask app config setting.

Describe alternatives you've considered Did briefly consider how to redirect the default swagger redirect URL, but it seems wrong to use it for anything other than documentation needs.

Additional context Example of using flask-dance for oauth to allow specific OAUTH handlers:

https://github.com/singingwolfboy/flask-dance-github

I've got a working branch here, which I can submit a PR for if the feature is accepted:

https://github.com/python-restx/flask-restx/compare/master...thedumbterminal:oauth-redirect?expand=1

[zachanator070]

Ran into this exact same problem today, hope to see a fix.

[thedumbterminal]

Just raised the PR for the branch with my change in the hope that it gets noticed.

[thedumbterminal]

Hi @j5awry are you able to give any feedback on this issue, or review the linked PR? Thanks.

[thedumbterminal]

HI @ziirish are you take a review on the PR or point me in the direction of someone else who can? thanks

[thedumbterminal]

@peter-doggart are you able to review this?

[peter-doggart]

@thedumbterminal This is on my to-do list. Just haven't had a chance to do any updates lately, but I will make sure this makes it into the next release.

[thedumbterminal]

Thanks 🙏