错误统一处理

app/api/mobile/api.rb

@@ -4,6 +4,7 @@ module Mobile
     version 'v1', using: :path
     format :json
     content_type :json, "application/json;charset=UTF-8"
+    use Mobile::Middleware::ErrorHandler
 
     helpers do
       def logger

app/api/mobile/apis/auth.rb

@@ -24,7 +24,7 @@ module Mobile
             present :data, {token: key.access_token, user: api_user}, using: Entities::Auth
             present :status, 0
           else
-            {status: 1, message: 'Unauthorized.'}
+            raise 'Unauthorized.'
           end
         end
 

app/api/mobile/apis/users.rb

@@ -11,15 +11,11 @@ module Mobile
         end
         post do
           us = UsersService.new
-          begin
-            user = us.register params.merge(:password_confirmation => params[:password],
-                                            :should_confirmation_password => true)
-            raise "register failed #{user.errors.full_messages}" if user.new_record?
-            present :data, user, with: Mobile::Entities::User
-            present :status, 0
-          rescue => e
-            {status: 1, message: e.message}
-          end
+          user = us.register params.merge(:password_confirmation => params[:password],
+                                          :should_confirmation_password => true)
+          raise "register failed #{user.errors.full_messages}" if user.new_record?
+          present :data, user, with: Mobile::Entities::User
+          present :status, 0
         end
 
 
@@ -36,13 +32,9 @@ module Mobile
         put ':id' do
           authenticate!
           us = UsersService.new
-          begin
-            ue = us.edit_user params.merge(id: current_user.id)
-            present :data, user, with: Mobile::Entities::User
-            present :status, 0
-          rescue => e
-            {status: 1, message: e.message}
-          end
+          ue = us.edit_user params.merge(id: current_user.id)
+          present :data, user, with: Mobile::Entities::User
+          present :status, 0
         end
 
 
@@ -55,13 +47,9 @@ module Mobile
         post 'password' do
           authenticate!
           us = UsersService.new
-          begin
-            ue = us.change_password params.merge(new_password_confirmation: params[:new_password])
-            present :data, user, with: Mobile::Entities::User
-            present :status, 0
-          rescue => e
-            {status: 1, message: e.message}
-          end
+          ue = us.change_password params.merge(new_password_confirmation: params[:new_password])
+          present :data, user, with: Mobile::Entities::User
+          present :status, 0
         end
 
       end

app/api/mobile/apis/watches.rb

@@ -9,8 +9,9 @@ module Mobile
         end
         get do
           authenticate!
-          ws = UsersService.new
-          ws.user_watcher(id: current_user.id)
+          us = UsersService.new
+          ws = us.user_watcher(id: current_user.id)
+          {status: 0, data: ws }
         end
 
 
@@ -22,12 +23,8 @@ module Mobile
         post do
           authenticate!
           ws = WatchesService.new
-          begin
             o = ws.watch(params.merge({current_user_id:current_user.id, object_type:'user' }) )
-            {status:0 , data: o}
-          rescue =>e
-            {status:1, message: e.message}
-          end
+            {status:0, data: o}
         end
 
 
@@ -39,12 +36,8 @@ module Mobile
         delete do
           authenticate!
           ws = WatchesService.new
-          begin
-            ws.unwatch(params.merge({current_user_id:current_user.id, object_type:'user' }) )
-            {status:0}
-          rescue =>e
-            {status:1, message: e.message}
-          end
+          ws.unwatch(params.merge({current_user_id:current_user.id, object_type:'user' }) )
+          {status: 0}
         end
 
       end

app/api/mobile/middleware/error_handler.rb

@@ -0,0 +1,18 @@
+module Mobile
+  module Middleware
+    class ErrorHandler < Grape::Middleware::Base
+      def call!(env)
+        @env = env
+        begin
+          @app.call(@env)
+        rescue =>e
+          message = {status: 1, message: e.message }.to_json
+          status = 200
+          headers = { 'Content-Type' => content_type }
+          Rack::Response.new([message], status, headers).finish
+          # throw :error, :message => e.message || options[:default_message], :status => 500
+        end
+      end
+    end
+  end
+end