OAuth2 with PKCE web flow authentication Authenticator

[uddhavchopade]

Please try to add OAuth2 with PKCE web flow Authentication in our Authenticators

[alexeyzimarev]

RestSharp doesn't have explicit support for any OAuth2 flow due to major differences in implementation between API vendors. If people start producing sample implementations for different OAuth2 scenarios, it might be possible to make a generic implementation of it.

[kalllol-1]

@alexeyzimarev
This flow is considered best practice when using Single Page Apps (SPA) or Mobile Apps. Please note that you should be able to implement a vendor-agnostic OIDC flow using /.well-known/openid-configuration.
https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderConfigurationRequest
We live in a world of ZERO Trust and it is irresponsible approach to support only confidential oauth2 client credentials flow from a popular component like RestSharp!

[alexeyzimarev]

Like I said, someone should do it. If there a commercial interest to do it, it's possible to open a mid-size bounty for this feature.