> ## Documentation Index
> Fetch the complete documentation index at: https://fastql.vachagan.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# HTTP context

> Access native requests, middleware state, custom values, and response headers.

Every adapter creates an `HTTPContext` before execution. It contains the native
framework request, host application where available, mutable request state, and
request-scoped response controls.

```python theme={null}
from fastql.integrations import HTTPContext

async def make_context(context: HTTPContext):
    context.state.current_user = await authenticate(context.request)
    context.response.set_header("x-request-source", "graphql")
    return context
```

Pass the factory to any adapter with `context_factory=make_context`. Factories can
be synchronous or asynchronous. Returning `None` keeps the supplied context;
returning another `Context` object replaces it for resolver and `Info.context`
injection.

For typed application state while preserving request access, subclass
`HTTPContext` and return that subclass from the factory.

Middleware should populate authentication and request state before the adapter.
FastQL does not duplicate framework dependency injection or security policy.