No route matches [GET] on a post request - ruby-on-rails

Question

I started Ruby on Rails few days ago, and I'm struggling with routing.
Indeed, I would like to make a post request through my routes.rb, but I keep having a
No route matches [GET] "/orders/refresh"
error.
Here is my routes.rb :
# frozen_string_literal: true
Rails.application.routes.draw do
# For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
get '/orders', to: 'orders#index'
get '/orders/active(/:q)', to: 'orders#active'
post '/orders/refresh', to: 'orders#refresh'
end
and here is my controller (orders_controller.rb) :
# frozen_string_literal: true
class OrdersController < ApplicationController
def index
#orders = Order.order(:departure_date).all
render json: #orders.to_json
end
def active
if !params[:q]
#orders = Order.order(:departure_date).where(active: true)
else
#orders = Order.order(:departure_date).where("reference = ? OR client_name = ? OR departure_city = ? OR arrival_city = ?",
params[:q], params[:q], params[:q], params[:q])
.where(active: true)
end
render json: #orders.to_json
end
def refresh
response = RestClient.get 'https://wakeo-technical-test.s3.eu-west-3.amazonaws.com/api.json'
json = JSON.parse response
if !json.nil?
json.each do |order|
old_order = Order.find_by(reference: order["client_number"])
if !old_order.nil?
old_order.update(departure_date: order["dep_time"])
old_order.update(arrival_date: order["arr_time"])
old_order.update(client_name: order["company"])
old_order.update(departure_city: order["dep_city"])
old_order.update(arrival_city: order["arr_city"])
end
end
else
puts "error seeding external API"
end
end
end
From what I have understood, it seems like RoR will try to find a GET request for that specific URL, and since it won't find any, it will throw that error. How could I make that request be a POST for Rails ?
Also, I would appreciate any suggestion about how I should use ActiveRecord Querying, I'm pretty sure I could do it better here.
Thanks, have a great day !
EDIT : Here is the list of different routes my app seems to be capable of, including my POST.
Routes and error

Answer 1

The most common reason you unexpectly get GET requests instead of PUT, PATCH, POST or DELETE is that you are using link_to 'Something', '/some_path', method: :post and you broke the Rails Unobtrusive Javascript Driver (Rails UJS):
Because submitting forms with HTTP methods other than GET and POST
isn't widely supported across browsers, all other HTTP methods are
actually sent over POST with the intended method indicated in the
_method parameter. Rails automatically detects and compensates for this.
Rails does that with a JavaScript event handler attached to any link with the data-method attribute. But if you broke that functionality the browser will just perform its default action which is sending a GET request when the user clicks a link.
This problem usually boils down to one or more of:
Your javascript is throwing an error which halts script execution (use the browser console to find the error, make it suck less).
Rails UJS is not included in your assets pipeline or webpacker packs and thus not in the page.
The quick and easy solution to sidestep the problem is by using button_to which actually creates a form and does not require any JavaScript trickery. After all forms can send POST requests. And by just passing a _METHOD hidden field Rack will treat the request as any other HTTP verb.
button_to 'Something', '/some_path', method: :post
But in the long run you should probably fix the problem if you want to use any of the features of Rails UJS.

Answer 2

Your routes.rb is expecting a POST request to /orders/refresh routes, but apparently you are testing with a GET request.
Try changing your routes.rb:
Rails.application.routes.draw do
# ...
get '/orders/refresh', to: 'orders#refresh'
end
... or change your request to a POST request. If you are using Rails forms, you must do something like this:
form_with(url: "/orders/refresh", method: "post")

Answer 3

Ok, I think I figured it out.
It might be because when I hit /orders/refresh directly in my web browser, it will try to find a GET corresponding to the request.
I managed to make POST using a client like Postman, and everything works fine.
Thank you for your help !