Adjust to the in-house style

- Use jbuilder instead of hashes
- Use resource instead of direct HTTP verbs
    Verbs only make sense if you have one or two routes, if there are
    multiple that emulate what resource does then it's better to use resource.
- Paginate using link headers
- Cache responses

app/controllers/messages/boosts/by_bots_controller.rb

@@ -1,33 +1,33 @@
-class Messages::Boosts::ByBotsController < ApplicationController
+class Messages::Boosts::ByBotsController < Messages::BoostsController
+  include RawRequestBody
+
   allow_bot_access only: :create
 
+  before_action :ensure_content_present
+
   def create
-    set_message
-    @boost = @message.boosts.create!(content: read_body)
+    @boost = @message.boosts.create!(boost_params)
 
     broadcast_create
-    head :created
-  rescue ActiveRecord::RecordNotFound
-    head :not_found
+    render :show, status: :created
   end
 
   private
     def set_message
-      @room = Current.user.rooms.find(params[:room_id])
-      @message = @room.messages.find(params[:message_id])
+      if room = Current.user.rooms.find_by(id: params[:room_id])
+        @message = room.messages.find_by(id: params[:message_id])
+      end
+
+      head :not_found unless @message
     end
 
-    def read_body
-      request.body.rewind
-      request.body.read.force_encoding("UTF-8")
-    ensure
-      request.body.rewind
+    def ensure_content_present
+      if raw_request_body.blank?
+        head :unprocessable_content
+      end
     end
 
-    def broadcast_create
-      @boost.broadcast_append_to @boost.message.room, :messages,
-        target: "boosts_message_#{@boost.message.client_message_id}",
-        partial: "messages/boosts/boost",
-        attributes: { maintain_scroll: true }
+    def boost_params
+      { content: raw_request_body }
     end
 end