Question: I am trying to send a post request using the Postman chrome extension to my Ruby on Rails app, but i keep getting the error

> 
> 
> ```
> ActionController::ParameterMissing (param not found: order):
> app/controllers/orders_controller.rb:27:in order_params'
> app/controllers/orders_controller.rb:20:in create
> 
> ```
> 
> 

The code in my orders\_controller is 

```
class OrdersController < ApplicationController
  protect_from_forgery :except => :create

  def new
    @order = Order.new
  end

  def index
    @orders = Order.all  
  end

  def show
    @order = Order.find(params[:id])    
  end

  def create
    @order = Order.new(order_params)
    render text: params[:product]   
  end

  private

  def order_params
    params.require(:order).permit(:product)
  end
end

```

My key Value pairs to the Postman extension are `product[product_name]` `Samsung`

Answer: 
For you to use `params.require(:order)`. the incoming parameters should be something like `{"order"=>...}` 

Check the documentation at <http://edgeapi.rubyonrails.org/classes/ActionController/StrongParameters.html> to use Strong Parameters,. 

Based on your information about the key-value pairs used, there is no key called "order" in the incoming-data. That's the reason - its failing.

Hope, this helps
Probably the params method is requiring something that you don't have. Inspect the params. 

This worked for me:

Controller:

```
def progress_params
    params.require(:progress).permit(:game_id, :level_id)
end

```

---

View:

```
<%= link_to "Completed", progresses_path(:progress =>{:game_id => @level.game_id.to_i, :level_id => @level.id.to_i} ), :method => :post %>

```