diff --git a/Gemfile b/Gemfile
index 01bb5f3a..22cd778d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,6 +7,7 @@ gem 'travis-support', github: 'travis-ci/travis-support'
 gem 'travis-core',    github: 'travis-ci/travis-core', branch: 'sf-more-services'
 gem 'hubble',         github: 'roidrage/hubble'
 gem 'yard-sinatra',   github: 'rkh/yard-sinatra'
+gem 'rack-contrib',   github: 'rack/rack-contrib'
 gem 'gh',             github: 'rkh/gh'
 gem 'bunny'
 
diff --git a/lib/travis/api/app.rb b/lib/travis/api/app.rb
index d8531f8d..200c1d6c 100644
--- a/lib/travis/api/app.rb
+++ b/lib/travis/api/app.rb
@@ -57,6 +57,7 @@ class Travis::Api::App
       use Hubble::Rescuer, env: Travis.env, codename: ENV['CODENAME'] if Endpoint.production? && ENV['HUBBLE_ENDPOINT']
       use Rack::Protection::PathTraversal
       use Rack::SSL if Endpoint.production?
+      use Rack::PostBodyContentTypeParser
       use Rack::JSONP
       use ActiveRecord::ConnectionAdapters::ConnectionManagement
 
diff --git a/lib/travis/api/app/endpoint/hooks.rb b/lib/travis/api/app/endpoint/hooks.rb
index fd590db5..c28de0fa 100644
--- a/lib/travis/api/app/endpoint/hooks.rb
+++ b/lib/travis/api/app/endpoint/hooks.rb
@@ -11,7 +11,7 @@ class Travis::Api::App
       end
 
       # TODO: Add implementation and documentation.
-      put('/:id', scope: :admin) do
+      put('/:id', scope: :private) do
         body service(:hooks).update(params)
       end
     end
diff --git a/lib/travis/api/app/endpoint/profile.rb b/lib/travis/api/app/endpoint/profile.rb
index e5b62f3e..2544f56b 100644
--- a/lib/travis/api/app/endpoint/profile.rb
+++ b/lib/travis/api/app/endpoint/profile.rb
@@ -3,6 +3,8 @@ require 'travis/api/app'
 class Travis::Api::App
   class Endpoint
     class Profile < Endpoint
+      LOCALES = %w(en es fr ja eb nl pl pt-Br ru) # TODO how to figure these out
+
       # Gives information about the currently logged in user.
       #
       # Example:
@@ -23,7 +25,7 @@ class Travis::Api::App
       end
 
       put '/', scope: :private do
-        raise NotImplementedError
+p params
         update_locale if valid_locale?
         'ok'
       end
@@ -45,17 +47,18 @@ class Travis::Api::App
         end
 
         def locale
-          params[:user][:locale]
+          params[:profile][:locale].to_s
         end
 
         def valid_locale?
-          I18n.available_locales.include?(locale.to_sym) # ???
+          LOCALES.include?(locale)
         end
 
         def update_locale
-          current_user.update_attributes!(:locale => locale.to_s)
-          session[:locale] = locale # ???
+          current_user.update_attribute(:locale, locale.to_s)
+          # session[:locale] = locale # ???
         end
     end
   end
 end
+
diff --git a/lib/travis/api/app/responder.rb b/lib/travis/api/app/responder.rb
index 6fc6bcff..36e3a5c4 100644
--- a/lib/travis/api/app/responder.rb
+++ b/lib/travis/api/app/responder.rb
@@ -21,7 +21,7 @@ class Travis::Api::App
       # Logging is set up by custom middleware
       disable  :protection, :logging, :setup
       enable   :raise_errors
-      disable  :dump_errors
+      # disable  :dump_errors
       register :subclass_tracker
       helpers  :json_renderer
     end