This is an implementation of CRUD pattern for manipulate resources, this is the first step to use the HTTP protocol as an application protocol instead of a transport protocol.

Verb	URI or template	Use
POST	/order	Create a new order, and upon success, receive a Locationheader specifying the new order's URI.
GET	/order/{orderId}	Request the current state of the order specified by the URI.
PUT	/order/{orderId}	Update an order at the given URI with new information, providing the full representation.
DELETE	/order/{orderId}	Logically remove the order identified by the given URI.

RESTBUCKS_SERVER

class
	RESTBUCKS_SERVER

inherit
	ANY

	URI_TEMPLATE_ROUTED_SERVICE

	DEFAULT_SERVICE
		-- Here we are using a default connector using the default Nino Connector,
		-- but it's possible to use other connector (CGI or FCGI).

create
	make

feature {NONE} -- Initialization

	make
		-- Initialize the router (this will have the request handler and 
		-- their context).
		do
			initialize_router
			make_and_launch
		end

	create_router
		do
			create router.make (2)
		end

	setup_router
		local
			order_handler: ORDER_HANDLER [REQUEST_URI_TEMPLATE_HANDLER_CONTEXT]
		do
			create order_handler
			router.map_with_request_methods ("/order", order_handler, <<"POST">>)
			router.map_with_request_methods ("/order/{orderid}", order_handler, <<"GET", "DELETE", "PUT">>)
		end

feature -- Execution

	execute_default (req: WSF_REQUEST; res: WSF_RESPONSE)
			-- I'm using this method to handle the method not allowed response
			-- in the case that the given uri does not have a corresponding http method
			-- to handle it.
		local
			h : HTTP_HEADER
			l_description : STRING
			l_api_doc : STRING
		do
			if req.content_length_value > 0 then
				req.input.read_string (req.content_length_value.as_integer_32)
			end
			create h.make
			h.put_status ({HTTP_STATUS_CODE}.method_not_allowed)
			h.put_content_type_text_plain
			l_api_doc := "%NPlease check the API%NURI:/order METHOD: POST%NURI:/order/{orderid} METHOD: GET, PUT, DELETE%N"
			l_description := req.request_method + req.request_uri + " is not allowed" + "%N" + l_api_doc
			h.put_content_length (l_description.count)
			h.put_current_date
			res.set_status_code ({HTTP_STATUS_CODE}.method_not_allowed)
			res.write_header_text (h.string)
			res.write_string (l_description)
		end

end

How to Create an order

* Uri: http://localhost:8080/order
* Method: POST
* Note: you will get in the response the "location" of the new your order.
* HEADERS:

  Content-Type: application/json

* Example CONTENT
     
      {
	"location":"takeAway",
	"items":[
	        {
	        "name":"Late",
	        "option":"skim",
	        "size":"Small",
	        "quantity":1
	        }
	    ]
	}

How to Read an order * Uri: http://localhost:8080/order/{order_id} * Method: GET

How to Update an order * Uri: http://localhost:8080/order/{order_id} * Method: PUT

How to Delete an order * Uri: http://localhost:8080/order/{order_id} * Method: DELETE