Add endpoint to search users by skill names

app/controllers/user_skills_controller.rb

@@ -36,6 +36,14 @@ def destroy
     head :not_found
   end
 
+  # GET /user_skills/search?query=:query
+  def search
+    return render json: [] if params[:query].blank?
+    query = params[:query].split(/[\s,]+/).map(&:downcase)
+    users = UserSkill.joins(:skill).where('LOWER(skills.name) IN (?)', query).pluck(:user_id).uniq
+    render json: User.where(id: users)
+  end
+
   private
 
   # Use callbacks to share common setup or constraints between actions.

config/routes.rb

@@ -41,6 +41,7 @@
   resources :user_skills, only: [:index] do
     collection do
       patch :bulk_update
+      get :search
     end
   end
 end