Creating User with Rails API and JSON? - ruby-on-rails

Question

So I'm testing out a very simple API in Rails to see if I can create a user from it locally using the Chrome plugin Postman (REST Client extension).
In my rails app, I've set up a folder/namespace for my API, and whenever I try to create my user, I get the following error:
Missing template api/v1/users/create, application/create with {:locale=>[:en], :formats=>[:json], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in: * "PATH/app/views"
I'm using Rails 4.0.1 and Ruby 2.0
I'm posting a screenshot below of what I'm posting:
module Api
module V1
class UsersController < ApplicationController
class User < ::User
# add any hacks
end
respond_to :json
def index
respond_with User.all
end
def show
respond_with User.find(params[:id])
end
def new
#user = User.new
end
def create
#user = User.create(user_params)
# respond_with(#user)
if #user.save
# render json: #user, status: :created, location: #user
redirect_to #user
end
end
private
def user_params
params.require(:user).permit(:name, :age, :location) if params[:user]
end
end
end
end
So based on my user_params, I should be able to create a new user, correct?
Please let me know if you need any additional info and I'll do my best to respond ASAP!
Thanks!

Answer 1

You can create user using API.
1) First you need to put proper resources in your routes.rb:
YourApp::Application.routes.draw do
namespace :api do
namespace :v1 do
resources :users
end
namespace :v2 do
# ... if needed
end
end
root to: 'users#index'
end
2) You need to create a RESTfull-style controller to process requests. Here how your action 'create' may be implemented.
def create
respond_with User.create(fio: params[:fio], phone: params[:phone], region: params[:region], updated_at: Time.now)
end
Example of 'create' with respond_to:
def create
# ...
respond_to do |format|
format.html {render text: "Your data was sucessfully loaded. Thanks"}
format.json {
User.create(... params ...)
render text: User.last.to_json # !
}
end
end
See documents about respond_with and respond_to if you need something special to respond.
Also can be helpful railscasts episodes about API building: #350 and #352
P.S. folder/namespace/v1/users_controller shall be the same as class name in your module Api
P.S.2 You can observe my app, where you can probably find something helpful (same as your app - simple API for records creating) - myApp
Example of users_controller (controllers/api/v1/users_controller.rb):
#encoding: utf-8
module Api
module V1
class UsersController < ApplicationController # Api::BaseController
before_filter :authenticate_user!, except: [:create, :index]
respond_to :json
def index
#respond_with
respond_to do |format|
format.html {render text: "Your data was sucessfully loaded. Thanks"}
format.json { render text: User.last.to_json }
end
end
def show
respond_with User.find(params[:id])
end
def create
respond_with User.create(access_token: params[:access_token], city: params[:city], created_at: Time.now, phone: params[:phone], region: params[:region], updated_at: Time.now)
end
def update
respond_with User.update(params[:id], params[:users])
end
def destroy
respond_with User.destroy(params[:id])
end
end
end
end

Answer 2

redirect dose not return, so your create method will keep looking for template to render, and then find there is no matching template.
To fix, you need to explicitly return redirect
if #user.save
return redirect_to(#user)
end
You also need to pay attention to the default url of #user. It's better to assign a named path explicitly in this case, say redirect_to(user_path(#user))