# InternalCoreModuleFactory

**Kind:** Class

**Source:** [`packages/core/injector/internal-core-module/internal-core-module-factory.ts`](https://github.com/nestjs/nest/blob/master/packages/core/injector/internal-core-module/internal-core-module-factory.ts#L17)

**Part of:** [Core](subsystem-packages-core)

`InternalCoreModuleFactory` builds the framework’s internal core module definition used by the dependency injection container. Its `create()` method registers foundational providers such as reflection utilities, request context tokens, module storage, HTTP adapter access, lazy module loading, and graph inspection services.

## Methods

| Method | Signature | Returns |
|---|---|---|
| `create` | `create(container: NestContainer, scanner: DependenciesScanner, moduleCompiler: ModuleCompiler, httpAdapterHost: HttpAdapterHost, graphInspector: GraphInspector, moduleOverrides: ModuleOverride[])` | `void` |

## Diagram

```mermaid
graph LR
  A[Application Bootstrap] --> B[InternalCoreModuleFactory.create]
  B --> C[InternalCoreModule Definition]
  C --> D[Core DI Providers]
  D --> E[Reflector]
  D --> F[ModulesContainer]
  D --> G[HttpAdapterHost]
  D --> H[ExternalContextCreator]
  D --> I[LazyModuleLoader]
  D --> J[SerializedGraph]
  C --> K[NestContainer]
```

## Usage

```ts
import { InternalCoreModuleFactory } from './internal-core-module-factory';

// Typically called internally during application initialization.
const internalCoreModule = InternalCoreModuleFactory.create(
  container,
  scanner,
  moduleCompiler,
  httpAdapterHost,
  graphInspector,
);

// Register the generated module definition with the application container.
await container.addModule(internalCoreModule, []);
```

## AI Coding Instructions

- Treat `create()` as framework bootstrap infrastructure; application code should generally not call it directly.
- Keep provider tokens and exports aligned so internal services remain resolvable throughout the container.
- Pass the active `NestContainer`, scanner, compiler, HTTP adapter host, and graph inspector from the bootstrap pipeline.
- Preserve request-scoped provider behavior when adding providers that depend on request context or inquirer resolution.
- Update this factory when introducing new globally available internal runtime services.

## Relationships

- IMPORTS → `Logger`