Do not restrict payload encoding to specific input

lib/avrora/codec.ex

@@ -74,7 +74,6 @@ defmodule Avrora.Codec do
       <<72, 48, 48, 48, 48, 48, 48, 48, 48, 45, 48, 48, 48, 48, 45, 48, 48, 48, 48, 45, 48, 48, 48,
       48, 45, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 123, 20, 174, 71, 225, 250, 47, 64>>
   """
-  # TODO: Define encodable types
-  @callback encode(payload :: binary() | map(), options :: keyword(Avrora.Schema.t())) ::
+  @callback encode(payload :: term(), options :: keyword(Avrora.Schema.t())) ::
               {:ok, result :: binary()} | {:error, reason :: term()}
 end

lib/avrora/codec/object_container_file.ex

@@ -49,7 +49,7 @@ defmodule Avrora.Codec.ObjectContainerFile do
   end
 
   @impl true
-  def encode(payload, schema: schema) when is_binary(payload) or is_map(payload) do
+  def encode(payload, schema: schema) do
     with {:ok, schema} <- resolve(schema),
          {:ok, body} <- Codec.Plain.encode(payload, schema: schema),
          {:ok, schema} <- SchemaEncoder.to_erlavro(schema) do

lib/avrora/codec/plain.ex

@@ -25,7 +25,6 @@ defmodule Avrora.Codec.Plain do
     with {:ok, schema} <- resolve(schema), do: do_decode(payload, schema)
   end
 
-  # FIXME payload could be anything? We need a type!
   @impl true
   def encode(payload, schema: schema) do
     with {:ok, schema} <- resolve(schema), do: do_encode(payload, schema)

lib/avrora/codec/schema_registry.ex

@@ -66,7 +66,7 @@ defmodule Avrora.Codec.SchemaRegistry do
   end
 
   @impl true
-  def encode(payload, schema: schema) when is_binary(payload) or is_map(payload) do
+  def encode(payload, schema: schema) do
     with {:ok, schema} <- resolve(schema) do
       schema = if is_nil(schema.id), do: {:error, :invalid_schema_id}, else: {:ok, schema}