Using omniauth to connect to third party oauth2 providers without logging them in with these providers

[misner]

Using:

• Ruby 2.6
• Rails 6.0

I read the Docs notably the articles about "managing multiple providers" but could not find a clear response if omniauth is the right fit for what I need.

I'd like to use omniauth to connect a user (which is already authenticated via our own custom login/password system) to various oauth2 providers. The thing is I don't want to use these oauth2 providers as a way to log them in my app. All the logging is already taken care of and we just want to help them "connect" to their third party apps such as linkedin, twitter...

A good example would be a typical CRM like Hubspot where a visitor creates his account using a typical login/password and then in his Settings he can "sync" his account with linkedin or twitter to unlock certain features (ex multi posting messages to social platforms).

Having read the article about "managing multiple providers", and many articles or Help guide on the web such as https://gorails.com/episodes/login-with-multiple-oauth-providers, and as far as I can understand, all seems to explain how to tackle the issue of how to log in/out/keep consistency when users can log from multiple providers so there seems to be a lot of complications related to enable "logging-in" for many providers.
Hence, I'm not sure if we should use omniauth as for us, we don't want them to be able to actually log-in with multiple providers, just with one (our login/password) but still "sync" their account with other third parties providers.

Could and should I use omniauth ?

[ryansch]

@misner This is exactly how we use omniauth. In fact, we don't use it to log in users at all!

[misner]

@ryansch Great! thanks for the confirmation.