manishs
Signup and Login Actions for a SaaS application
I am implementing signup and login for a SaaS application where every user is linked to an organization. Let’s say my application has the URL myapp.com, and every organization has a unique subdomain under my website e.g. myclient1.myapp.com
I have to derive organization ID from the unique subdomain myclient1 and assign it to organization_id field of user table in the database for every signup. For login also, I need to derive the organization_id and find the user by organization_id and the email.
How can I implement this correctly using AshAuthentication? I believe I need to use a custom strategy and make the database call there to fetch organization by unique subdomain and set the organization_id in changeset?
And how do I access the hostname in change method of the custom strategy? With Phoenix, I get this with Plug.Conn by using conn.host. But with Ash custom strategy, I inspected all the available variables - changeset, options and context, it doesn’t seem to be there.
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zachdaniel
Are you using the built in confirmation tooling in ash_authentication? Regardless, the best way to handle this typically is to add a plug after authentication that checks if the user has been confirmed, and if not redirect to the “please verify your email or resend” page.
zachdaniel
Generally this would be done by using multitenancy, and you’d set the tenant in a plug. For example,
In your user resource
multitenancy do
strategy :attribute
attribute :organization_id
global? true # allows working with all orgs without setting a tenant
end
Then, in a plug ahead of the authentication logic, use set_tenant/2 from here Ash.PlugHelpers — ash v2.18.1 to set the tenant to the organization.id that you looked up from the plug.
AshAuthentication honors the tenant when interacting with your user resource. When a tenant is set while using the attribute strategy, the attribute is written to on changes and used in filters when accessing the data.
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