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这是我的 Controller :
class Api::V1::UsersController < ApplicationController
respond_to :json
def show
respond_with User.find(params[:id])
end
end
routes.rb
require 'api_constraints'
Rails.application.routes.draw do
devise_for :users
# Api definition
namespace :api, defaults: { format: :json }, constraints: { subdomain: 'api' }, path: '/' do
scope module: :v1, constraints: ApiConstraints.new(version: 1, default: true) do
resources :users, :only => [:show]
end
end
end
lib/api_constraints.rb
class ApiConstraints
def initialize(options)
@version = options[:version]
@default = options[:default]
end
def matches?(req)
@default || req.headers['Accept'].include?("application/vnd.myapp.v#{@version}")
end
end
[3] pry(main)> User.all
User Load (0.4ms) SELECT "users".* FROM "users"
=> [#<User:0x007fbdb31079f8
id: 1,
email: "abc@test.com",
encrypted_password: "$2a$11$rvOrK1bmuuNwwc78ERxG3eCrKiUu9NTZsJ/nmirqb.3yRBHYUK69S",
reset_password_token: nil,
reset_password_sent_at: nil,
remember_created_at: nil,
sign_in_count: 0,
current_sign_in_at: nil,
last_sign_in_at: nil,
current_sign_in_ip: nil,
last_sign_in_ip: nil,
created_at: Mon, 11 Apr 2016 10:35:39 UTC +00:00,
updated_at: Mon, 11 Apr 2016 10:35:39 UTC +00:00>]
ActionController::RoutingError (No route matches [GET] "/users/1"):
actionpack (5.0.0.beta3) lib/action_dispatch/middleware/debug_exceptions.rb:53:in `call'
web-console (3.1.1) lib/web_console/middleware.rb:131:in `call_app'
web-console (3.1.1) lib/web_console/middleware.rb:28:in `block in call'
web-console (3.1.1) lib/web_console/middleware.rb:18:in `catch'
web-console (3.1.1) lib/web_console/middleware.rb:18:in `call'
actionpack (5.0.0.beta3) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
railties (5.0.0.beta3) lib/rails/rack/logger.rb:36:in `call_app'
railties (5.0.0.beta3) lib/rails/rack/logger.rb:24:in `block in call'
activesupport (5.0.0.beta3) lib/active_support/tagged_logging.rb:70:in `block in tagged'
activesupport (5.0.0.beta3) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (5.0.0.beta3) lib/active_support/tagged_logging.rb:70:in `tagged'
railties (5.0.0.beta3) lib/rails/rack/logger.rb:24:in `call'
actionpack (5.0.0.beta3) lib/action_dispatch/middleware/request_id.rb:24:in `call'
rack (2.0.0.alpha) lib/rack/runtime.rb:22:in `call'
activesupport (5.0.0.beta3) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
actionpack (5.0.0.beta3) lib/action_dispatch/middleware/load_interlock.rb:13:in `call'
actionpack (5.0.0.beta3) lib/action_dispatch/middleware/static.rb:136:in `call'
rack (2.0.0.alpha) lib/rack/sendfile.rb:111:in `call'
railties (5.0.0.beta3) lib/rails/engine.rb:522:in `call'
puma (3.2.0) lib/puma/configuration.rb:227:in `call'
puma (3.2.0) lib/puma/server.rb:561:in `handle_request'
puma (3.2.0) lib/puma/server.rb:406:in `process_client'
puma (3.2.0) lib/puma/server.rb:271:in `block in run'
puma (3.2.0) lib/puma/thread_pool.rb:111:in `block in spawn_thread'
{"status":404,"error":"Not Found","exception":"#\u003cActionController::RoutingError: No route matches [GET] \"/users/1\"\u003e","traces":{"Application Trace":[],"Framework Trace":[{"id":0,"trace":"actionpack (5.0.0.beta3) lib/action_dispatch/middleware/debug_exceptions.rb:53:in `call'"},{"id":1,"trace":"web-console (3.1.1) lib/web_console/middleware.rb:131:in `call_app'"},{"id":2,"trace":"web-console (3.1.1) lib/web_console/middleware.rb:28:in `block in call'"},{"id":3,"trace":"web-console (3.1.1) lib/web_console/middleware.rb:18:in `catch'"},{"id":4,"trace":"web-console (3.1.1) lib/web_console/middleware.rb:18:in `call'"},{"id":5,"trace":"actionpack (5.0.0.beta3) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'"},{"id":6,"trace":"railties (5.0.0.beta3) lib/rails/rack/logger.rb:36:in `call_app'"},{"id":7,"trace":"railties (5.0.0.beta3) lib/rails/rack/logger.rb:24:in `block in call'"},{"id":8,"trace":"activesupport (5.0.0.beta3) lib/active_support/tagged_logging.rb:70:in `block in tagged'"},{"id":9,"trace":"activesupport (5.0.0.beta3) lib/active_support/tagged_logging.rb:26:in `tagged'"},{"id":10,"trace":"activesupport (5.0.0.beta3) lib/active_support/tagged_logging.rb:70:in `tagged'"},{"id":11,"trace":"railties (5.0.0.beta3) lib/rails/rack/logger.rb:24:in `call'"},{"id":12,"trace":"actionpack (5.0.0.beta3) lib/action_dispatch/middleware/request_id.rb:24:in `call'"},{"id":13,"trace":"rack (2.0.0.alpha) lib/rack/runtime.rb:22:in `call'"},{"id":14,"trace":"activesupport (5.0.0.beta3) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'"},{"id":15,"trace":"actionpack (5.0.0.beta3) lib/action_dispatch/middleware/load_interlock.rb:13:in `call'"},{"id":16,"trace":"actionpack (5.0.0.beta3) lib/action_dispatch/middleware/static.rb:136:in `call'"},{"id":17,"trace":"rack (2.0.0.alpha) lib/rack/sendfile.rb:111:in `call'"},{"id":18,"trace":"railties (5.0.0.beta3) lib/rails/engine.rb:522:in `call'"},{"id":19,"trace":"puma (3.2.0) lib/puma/configuration.rb:227:in `call'"},{"id":20,"trace":"puma (3.2.0) lib/puma/server.rb:561:in `handle_request'"},{"id":21,"trace":"puma (3.2.0) lib/puma/server.rb:406:in `process_client'"},{"id":22,"trace":"puma (3.2.0) lib/puma/server.rb:271:in `block in run'"},{"id":23,"trace":"puma (3.2.0) lib/puma/thread_pool.rb:111:in `block in spawn_thread'"}],"Full Trace":[{"id":0,"trace":"actionpack (5.0.0.beta3) lib/action_dispatch/middleware/debug_exceptions.rb:53:in `call'"},{"id":1,"trace":"web-console (3.1.1) lib/web_console/middleware.rb:131:in `call_app'"},{"id":2,"trace":"web-console (3.1.1) lib/web_console/middleware.rb:28:in `block in call'"},{"id":3,"trace":"web-console (3.1.1) lib/web_console/middleware.rb:18:in `catch'"},{"id":4,"trace":"web-console (3.1.1) lib/web_console/middleware.rb:18:in `call'"},{"id":5,"trace":"actionpack (5.0.0.beta3) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'"},{"id":6,"trace":"railties (5.0.0.beta3) lib/rails/rack/logger.rb:36:in `call_app'"},{"id":7,"trace":"railties (5.0.0.beta3) lib/rails/rack/logger.rb:24:in `block in call'"},{"id":8,"trace":"activesupport (5.0.0.beta3) lib/active_support/tagged_logging.rb:70:in `block in tagged'"},{"id":9,"trace":"activesupport (5.0.0.beta3) lib/active_support/tagged_logging.rb:26:in `tagged'"},{"id":10,"trace":"activesupport (5.0.0.beta3) lib/active_support/tagged_logging.rb:70:in `tagged'"},{"id":11,"trace":"railties (5.0.0.beta3) lib/rails/rack/logger.rb:24:in `call'"},{"id":12,"trace":"actionpack (5.0.0.beta3) lib/action_dispatch/middleware/request_id.rb:24:in `call'"},{"id":13,"trace":"rack (2.0.0.alpha) lib/rack/runtime.rb:22:in `call'"},{"id":14,"trace":"activesupport (5.0.0.beta3) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'"},{"id":15,"trace":"actionpack (5.0.0.beta3) lib/action_dispatch/middleware/load_interlock.rb:13:in `call'"},{"id":16,"trace":"actionpack (5.0.0.beta3) lib/action_dispatch/middleware/static.rb:136:in `call'"},{"id":17,"trace":"rack (2.0.0.alpha) lib/rack/sendfile.rb:111:in `call'"},{"id":18,"trace":"railties (5.0.0.beta3) lib/rails/engine.rb:522:in `call'"},{"id":19,"trace":"puma (3.2.0) lib/puma/configuration.rb:227:in `call'"},{"id":20,"trace":"puma (3.2.0) lib/puma/server.rb:561:in `handle_request'"},{"id":21,"trace":"puma (3.2.0) lib/puma/server.rb:406:in `process_client'"},{"id":22,"trace":"puma (3.2.0) lib/puma/server.rb:271:in `block in run'"},{"id":23,"trace":"puma (3.2.0) lib/puma/thread_pool.rb:111:in `block in spawn_thread'"}]}}
rake routes
$ rake routes
[DEPRECATION] `last_comment` is deprecated. Please use `last_description` instead.
[DEPRECATION] `last_comment` is deprecated. Please use `last_description` instead.
[DEPRECATION] `last_comment` is deprecated. Please use `last_description` instead.
Prefix Verb URI Pattern Controller#Action
new_user_session GET /users/sign_in(.:format) devise/sessions#new
user_session POST /users/sign_in(.:format) devise/sessions#create
destroy_user_session DELETE /users/sign_out(.:format) devise/sessions#destroy
user_password POST /users/password(.:format) devise/passwords#create
new_user_password GET /users/password/new(.:format) devise/passwords#new
edit_user_password GET /users/password/edit(.:format) devise/passwords#edit
PATCH /users/password(.:format) devise/passwords#update
PUT /users/password(.:format) devise/passwords#update
cancel_user_registration GET /users/cancel(.:format) devise/registrations#cancel
user_registration POST /users(.:format) devise/registrations#create
new_user_registration GET /users/sign_up(.:format) devise/registrations#new
edit_user_registration GET /users/edit(.:format) devise/registrations#edit
PATCH /users(.:format) devise/registrations#update
PUT /users(.:format) devise/registrations#update
DELETE /users(.:format) devise/registrations#destroy
api_user GET /users/:id(.:format) api/v1/users#show {:format=>:json, :subdomain=>"api"}
class ApplicationController < ActionController::API
end
users_controller_spec.rb
实际通过的测试:
require 'rails_helper'
describe Api::V1::UsersController do
before(:each) { request.headers['Accept'] = "application/vnd.myapp.v1" }
describe "GET #show" do
before(:each) do
@user = FactoryGirl.create :user
get :show, id: @user.id, format: :json
end
it "returns the information about a user on a hash" do
user_response = JSON.parse(response.body, symbolize_names: true)
expect(user_response[:email]).to eql @user.email
end
it { should respond_with 200 }
end
end
$ rspec spec/controllers
DEPRECATION WARNING: use_transactional_fixtures= is deprecated and will be removed from Rails 5.1 (use use_transactional_tests= instead). (called from <top (required)> at /myapp/spec/controllers/api/v1/users_controller_spec.rb:3)
DEPRECATION WARNING: ActionController::TestCase HTTP request methods will accept only
keyword arguments in future Rails versions.
Examples:
get :show, params: { id: 1 }, session: { user_id: 1 }
process :update, method: :post, params: { id: 1 }
(called from block (3 levels) in <top (required)> at /myapp/spec/controllers/api/v1/users_controller_spec.rb:9)
DEPRECATION WARNING: ActionController::TestCase HTTP request methods will accept only
keyword arguments in future Rails versions.
Examples:
get :show, params: { id: 1 }, session: { user_id: 1 }
process :update, method: :post, params: { id: 1 }
(called from block (3 levels) in <top (required)> at /myapp/spec/controllers/api/v1/users_controller_spec.rb:9)
.DEPRECATION WARNING: ActionController::TestCase HTTP request methods will accept only
keyword arguments in future Rails versions.
Examples:
get :show, params: { id: 1 }, session: { user_id: 1 }
process :update, method: :post, params: { id: 1 }
(called from block (3 levels) in <top (required)> at /myapp/spec/controllers/api/v1/users_controller_spec.rb:9)
DEPRECATION WARNING: ActionController::TestCase HTTP request methods will accept only
keyword arguments in future Rails versions.
Examples:
get :show, params: { id: 1 }, session: { user_id: 1 }
process :update, method: :post, params: { id: 1 }
(called from block (3 levels) in <top (required)> at /myapp/spec/controllers/api/v1/users_controller_spec.rb:9)
.
Finished in 0.41411 seconds (files took 3.33 seconds to load)
2 examples, 0 failures
最佳答案
问题是您的路由有一个约束,需要一个子域 api
.所以http://api.lvh.me:3000/users/1.json会工作,但不是 http://localhost:3000/users/1.json或 http://lvh.me:3000/users/1.json .
您应该更改 Ajax 调用以使用 api
子域。您还可以通过编写请求测试(而不是 Controller 测试)来确认这一点,并在使用 api
时看到它得到 200。子域,否则为 404。
关于ruby-on-rails - 使用 Rails 5(API 标志)并且尽管声明了路由但没有路由错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/36547622/
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