Memory Adapter

An in-memory user adapter for testing and development. No database, no setup — data lives in a Python dict and is lost when the process exits.

Usage

from fastauth.adapters.memory import MemoryUserAdapter

config = FastAuthConfig(
    adapter=MemoryUserAdapter(),
    ...
)

When to use it

• Unit tests — fast, zero-dependency fixtures
• Prototyping — spin up a working auth server without any database
• CI pipelines — no external services needed

Limitations

• Data is not persisted between restarts
• No token_adapter, oauth_adapter, or role_adapter implementations (use the SQLAlchemyAdapter when you need those)
• Not suitable for multi-process deployments (each process has its own memory)

Memory session backend

For OAuth state storage or database-session strategy in tests, use the memory session backend:

from fastauth.session_backends.memory import MemorySessionBackend

config = FastAuthConfig(
    ...,
    oauth_state_store=MemorySessionBackend(),
)