After "mix phx.gen.auth Admins Admin admins" with added working register and login path.

lib/beet_round_server_web/controllers/admin_controller.ex

@@ -0,0 +1,56 @@
+defmodule BeetRoundServerWeb.AdminController do
+  use BeetRoundServerWeb, :controller
+
+  alias BeetRoundServer.Admins
+  alias BeetRoundServer.Admins.Admin
+
+  action_fallback BeetRoundServerWeb.FallbackController
+
+  def create(conn, %{"admin" => admin_params}) do
+    with {:ok, %Admin{} = admin} <- Admins.register_admin(admin_params) do
+      conn
+      |> put_status(:created)
+      |> render(:show, admin: admin)
+    else
+      {:error, _changeset} ->
+        existingAdmin = Admins.get_admin_by_email(admin_params["email"])
+
+        if existingAdmin == nil do
+          conn
+          |> put_status(:bad_request)
+          |> render(:error, %{error: "Admin could not be created!", admin: admin_params})
+        else
+          admin = %{
+            mail: existingAdmin.email,
+            id: existingAdmin.id
+          }
+
+          conn
+          |> put_status(:conflict)
+          |> render(:error, %{error: "Admin already exists!", admin: admin})
+        end
+    end
+  end
+
+  def show(conn, %{"id" => id}) do
+    admin = Admins.get_admin!(id)
+    render(conn, :show, admin: admin)
+  end
+
+  def log_in(conn, %{"admin" => admin_params}) do
+    case Admins.get_admin_by_email_and_password(admin_params["email"], admin_params["password"]) do
+      nil ->
+        IO.puts("Admin couldn't be found!")
+
+        conn
+        |> put_status(:forbidden)
+        |> render(:error, %{error: "Invalid email or password!", admin: admin_params})
+
+      admin ->
+        encoded_token = Admins.create_admin_api_token(admin)
+        updated_admin = Map.put(admin, :token, encoded_token)
+
+        render(conn, :token, admin: updated_admin)
+    end
+  end
+end