Namespaces

Isolation in FastPubSub is the tenant. Messages never cross tenants, even when channel names are identical.

A tenant is an exact name on the access token (tenant_ids). There are no tenant wildcards. A master token may set tenant_prefix; get-token then writes the prefixed physical name into the access token.

Channels live inside a tenant. Naming, wildcards, and token rules are documented here:

• Channels
• Channel naming
• Patterns & matching
• Using tenants