PleromaAPIController: Add emoji reactions.

lib/pleroma/web/pleroma_api/pleroma_api_controller.ex

@@ -7,11 +7,22 @@ defmodule Pleroma.Web.PleromaAPI.PleromaAPIController do
 
   import Pleroma.Web.ControllerHelper, only: [add_link_headers: 7]
 
+  alias Pleroma.Activity
   alias Pleroma.Conversation.Participation
   alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.CommonAPI
   alias Pleroma.Web.MastodonAPI.ConversationView
   alias Pleroma.Web.MastodonAPI.StatusView
 
+  def react_with_emoji(%{assigns: %{user: user}} = conn, %{"id" => activity_id, "emoji" => emoji}) do
+    with {:ok, _activity, _object} <- CommonAPI.react_with_emoji(activity_id, user, emoji),
+         activity = Activity.get_by_id(activity_id) do
+      conn
+      |> put_view(StatusView)
+      |> render("status.json", %{activity: activity, for: user, as: :activity})
+    end
+  end
+
   def conversation(%{assigns: %{user: user}} = conn, %{"id" => participation_id}) do
     with %Participation{} = participation <- Participation.get(participation_id),
          true <- user.id == participation.user_id do

lib/pleroma/web/router.ex

@@ -277,6 +277,7 @@ defmodule Pleroma.Web.Router do
     scope [] do
       pipe_through(:oauth_write)
       patch("/conversations/:id", PleromaAPIController, :update_conversation)
+      post("/statuses/:id/react_with_emoji", PleromaAPIController, :react_with_emoji)
     end
   end
 

test/web/pleroma_api/pleroma_api_controller_test.exs

@@ -11,6 +11,21 @@ defmodule Pleroma.Web.PleromaAPI.PleromaAPIControllerTest do
 
   import Pleroma.Factory
 
+  test "POST /api/v1/pleroma/statuses/:id/react_with_emoji", %{conn: conn} do
+    user = insert(:user)
+    other_user = insert(:user)
+
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "#cofe"})
+
+    result =
+      conn
+      |> assign(:user, other_user)
+      |> post("/api/v1/pleroma/statuses/#{activity.id}/react_with_emoji", %{"emoji" => "☕"})
+
+    assert %{"id" => id} = json_response(result, 200)
+    assert to_string(activity.id) == id
+  end
+
   test "/api/v1/pleroma/conversations/:id", %{conn: conn} do
     user = insert(:user)
     other_user = insert(:user)