> ## 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.

# Context API

> Reference for Context, Info, and dependency registration.

## `Context`

`Context` is a marker base class for typed request state. Subclass it with a dataclass
or regular class. The executor injects the active context into resolver parameters
annotated with that type.

## `Info[ContextType, RootType]`

Resolver information includes:

* `field_name`, `parent_type`, and response `path`
* `schema`, parsed `operation`, and variable values
* `context` and `root_value`

`ResolveInfo` is an alias for `Info`.

## Dependencies

`register_dependency(type_, provider)` installs a provider in the default dependency
registry. `@provides(type_)` is the decorator form. Providers receive context and
can return values or awaitables. Values are cached per execution.

Framework-injected parameters are excluded from the generated GraphQL argument map.