# `Trogon.Commanded.TypeProvider`
[🔗](https://github.com/straw-hat-team/beam-monorepo/blob/trogon_commanded@v1.0.1/apps/trogon_commanded/lib/trogon/commanded/type_provider.ex#L1)

Implements `Commanded.EventStore.TypeProvider` behavior. Using macros to generate the behavior.

# `import_type_provider`
*macro* 

```elixir
@spec import_type_provider(provider_mod :: module()) :: Macro.t()
```

Imports all the types from another module defined by `Trogon.Commanded.TypeProvider`.

## Example

    defmodule UserTypeProvider do
      use Trogon.Commanded.TypeProvider
      # ...
    end

    defmodule MyAppTypeProvider do
      use Trogon.Commanded.TypeProvider

      import_type_provider UserTypeProvider
    end

# `register_protobuf_message`
*macro* 

```elixir
@spec register_protobuf_message(struct_mod :: module()) :: Macro.t()
```

Registers a mapping from a Protobuf message module using its `full_name/0` function as the type.

## Example

    defmodule MyTypeProvider do
      use Trogon.Commanded.TypeProvider

      register_protobuf_message MyApp.Proto.AccountCreated
    end

# `register_type`
*macro* 

```elixir
@spec register_type(name :: String.t(), struct_mod :: module()) :: Macro.t()
```

Registers a mapping from an name string to an Elixir Module that defines a struct.

## Example

    defmodule MyTypeProvider do
      use Trogon.Commanded.TypeProvider,
        prefix: "accounts." # optional, adds the prefix to the type name

      register_type "account_created", AccountCreated
    end

---

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