# `Ash.Info`
[🔗](https://github.com/ash-project/ash/blob/v3.23.1/lib/ash/info.ex#L5)

General introspection helpers for Ash applications.

Use `Ash.Info.mermaid_overview(otp_app)` to generate a mermaid chart of the application's domains and resources.
This offers a high level view, but will not include information from extensions. Use `resource_report/2`
for a detailed report of a resource.

Use `Ash.Info.mermaid_overview(otp_app, type: :entity_relationship)` to get a simplified entity relationship diagram.

Use `Ash.Info.domains_and_resources(otp_app)` to get a map where the keys are the domains, and the value is the list
of resources for that domain.

# `defined_extensions`

```elixir
@spec defined_extensions(app :: Application.app()) :: [module()]
```

Returns a list of all defined extensions in the application.

> #### Speed {: .warning}
>
> This function will load all modules in the application, which can be slow.
> Do not call this function in time sensitive code paths, It is intended for
> mix tasks, introspection, and debugging purposes.

# `domains`

```elixir
@spec domains(atom()) :: [Ash.Domain.t()]
```

# `domains_and_resources`

```elixir
@spec domains_and_resources(atom()) :: %{
  required(Ash.Domain.t()) => [Ash.Resource.t()]
}
```

Returns a map where the keys are the domains, and the value is the list of resources for that domain.

# `extensions_in_use`

```elixir
@spec extensions_in_use(app :: Application.app()) :: [module()]
```

Returns a list of extensions in use by all the domains and resources in the
given application.

# `mermaid_overview`

Generate a mermaid chart of the application's domains and resources.

This offers a high level view, but will not include information from extensions.

---

*Consult [api-reference.md](api-reference.md) for complete listing*