I am working through Matt's excellent article on implementing the OAuth Authorization Code Grant in a React app. https://fusionauth.io/blog/2020/03/10/securely-implement-oauth-in-react
We have a multi-tenant implementation and would like to know what the recommended approach is for determining which tenant a user is authenticating as. For example, if we have two different users in different tenants, both registered for the same application and both have the same username, is it possible to ask the user which tenant they belong to?
I think I can pass along the tenantId in the authorize query string, but this would require me to have already asked the "where are you from" question. Do I need to implement this, or can FusionAuth provide this out of the box?
I have read the documentation around login themes, but this seems to be more about displaying the tenant, rather than requesting it? https://fusionauth.io/docs/v1/tech/themes/
Great product.. thanks in advance.