How to handle multiple HTTP methods in the same Rails controller action - ruby-on-rails

Question

Let's say I want to support both GET and POST methods on the same URL. How would I go about handling that in a rails controller action?

Answer 1

You can check if it was a post using request.post?
if request.post?
#handle posts
else
#handle gets
end
To get your routes to work:
resources :photos do
member do
get 'preview'
post 'preview'
end
end

Answer 2

Here's another way. I included example code for responding with 405 for unsupported methods and showing supported methods when the OPTIONS method is used on the URL.
In app/controllers/foo/bar_controller.rb
before_action :verify_request_type
def my_action
case request.method_symbol
when :get
...
when :post
...
when :patch
...
when :options
# Header will contain a comma-separated list of methods that are supported for the resource.
headers['Access-Control-Allow-Methods'] = allowed_methods.map { |sym| sym.to_s.upcase }.join(', ')
head :ok
end
end
private
def verify_request_type
unless allowed_methods.include?(request.method_symbol)
head :method_not_allowed # 405
end
end
def allowed_methods
%i(get post patch options)
end
In config/routes.rb
match '/foo/bar', to: 'foo/bar#my_action', via: :all

Answer 3

Just need to use this, to use only get and post in the same route
resources :articles do
member do
match 'action_do-you_want', via: [:get, :post]
end
end

Answer 4

you can try this
match '/posts/multiple_action', to: 'posts#multiple_action', via: [:create, :patch, :get, :options]

Answer 5

I would say, the best way is to create separate actions in the controller and state them in routes.
# config/routes.rb
...
get '/my_action' => 'my#my_action_get'
post '/my_action' => 'my#my_action_post'
...
# app/controllers/my_controller.rb
...
def my_action_get
# do stuff like listing smth
end
def my_action_post
# do other stuff
end
In fact, the same logic is used by Rails by default: index and create actions are both called by requests sent to the same paths (e.g. /articles), however, they have different request methods: GET /articles request is redirected to the index action and lists all articles, and POST /articles is redirected to the create action and creates a new article.

Answer 6

This works for me:
In routes.rb
Rails.application.routes.draw do
post '/posts', to: 'posts#create'
get '/posts', to: 'posts#list_all'
end
In posts_controller.rb
class PostsController < ApplicationController
def create
new_post = Post.create( content: params[:content], user_id: params[:user_id] )
render json: { post: new_post }
end
def list_all
request = Post.all
render json: { all_posts: request }
end
end
So each action is referred to a different function