user creation admin api will create multiple users

lib/pleroma/web/admin_api/admin_api_controller.ex

@@ -46,24 +46,31 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
     |> json("ok")
   end
 
-  def user_create(
-        conn,
-        %{"nickname" => nickname, "email" => email, "password" => password}
-      ) do
-    user_data = %{
-      nickname: nickname,
-      name: nickname,
-      email: email,
-      password: password,
-      password_confirmation: password,
-      bio: "."
-    }
+  def users_create(conn, %{"users" => users}) do
+    result =
+      Enum.map(users, fn %{"nickname" => nickname, "email" => email, "password" => password} ->
+        user_data = %{
+          nickname: nickname,
+          name: nickname,
+          email: email,
+          password: password,
+          password_confirmation: password,
+          bio: "."
+        }
 
-    changeset = User.register_changeset(%User{}, user_data, need_confirmation: false)
-    {:ok, user} = User.register(changeset)
+        changeset = User.register_changeset(%User{}, user_data, need_confirmation: false)
+
+        case User.register(changeset) do
+          {:ok, user} ->
+            AccountView.render("created.json", %{user: user})
+
+          {:error, changeset} ->
+            AccountView.render("create-error.json", %{changeset: changeset})
+        end
+      end)
 
     conn
-    |> json(user.nickname)
+    |> json(result)
   end
 
   def user_show(conn, %{"nickname" => nickname}) do

lib/pleroma/web/admin_api/views/account_view.ex

@@ -44,4 +44,50 @@ defmodule Pleroma.Web.AdminAPI.AccountView do
       invites: render_many(invites, AccountView, "invite.json", as: :invite)
     }
   end
+
+  def render("created.json", %{user: user}) do
+    %{
+      type: "success",
+      code: 201,
+      data: %{
+        nickname: user.nickname,
+        email: user.email
+      }
+    }
+  end
+
+  def render("create-error.json", %{changeset: %Ecto.Changeset{changes: changes, errors: errors}}) do
+    %{
+      type: "error",
+      code: 409,
+      error: parse_error(errors),
+      data: %{
+        nickname: Map.get(changes, :nickname),
+        email: Map.get(changes, :email)
+      }
+    }
+  end
+
+  defp parse_error([]), do: ""
+
+  defp parse_error(errors) do
+    ## when nickname is duplicate ap_id constraint error is raised
+    nickname_error = Keyword.get(errors, :nickname) || Keyword.get(errors, :ap_id)
+    email_error = Keyword.get(errors, :email)
+    password_error = Keyword.get(errors, :password)
+
+    cond do
+      nickname_error ->
+        "nickname #{elem(nickname_error, 0)}"
+
+      email_error ->
+        "email #{elem(email_error, 0)}"
+
+      password_error ->
+        "password #{elem(password_error, 0)}"
+
+      true ->
+        ""
+    end
+  end
 end

lib/pleroma/web/router.ex

@@ -156,7 +156,7 @@ defmodule Pleroma.Web.Router do
     post("/user", AdminAPIController, :user_create)
 
     delete("/users", AdminAPIController, :user_delete)
-    post("/users", AdminAPIController, :user_create)
+    post("/users", AdminAPIController, :users_create)
     patch("/users/:nickname/toggle_activation", AdminAPIController, :user_toggle_activation)
     put("/users/tag", AdminAPIController, :tag_users)
     delete("/users/tag", AdminAPIController, :untag_users)