api handle to add tasks

services/app/apps/codebattle/lib/codebattle_web/controllers/ext_api/task_controller.ex

@@ -0,0 +1,24 @@
+defmodule CodebattleWeb.ExtApi.TaskController do
+  use CodebattleWeb, :controller
+
+  import Plug.Conn
+
+  plug(CodebattleWeb.Plugs.TokenAuth)
+
+  def create(conn, params) do
+    params = for {k, v} <- params, into: %{}, do: {String.to_atom(k), v}
+
+    case Codebattle.Task.changeset(%Codebattle.Task{}, params) do
+      %{valid?: true} ->
+        Codebattle.Task.upsert!(params)
+        send_resp(conn, 201, "")
+
+      %{valid?: false, errors: errors} ->
+        errors = Map.new(errors, fn {k, {v, _}} -> {k, v} end)
+
+        conn
+        |> put_status(:bad_request)
+        |> json(%{errors: errors})
+    end
+  end
+end

services/app/apps/codebattle/lib/codebattle_web/router.ex

@@ -70,6 +70,7 @@ defmodule CodebattleWeb.Router do
   scope "/ext_api", CodebattleWeb.ExtApi, as: :ext_api do
     pipe_through([:ext_api])
     post("/users", UserController, :create)
+    post("/tasks", TaskController, :create)
   end
 
   scope "/", CodebattleWeb do