Added error handling to API wrapper [SCI-5939]

app/services/label_printers/fluics/api_client.rb

@@ -3,6 +3,10 @@
 module LabelPrinters
   module Fluics
     class ApiClient
+      class NotFoundError < StandardError; end
+      class ServerError < StandardError; end
+      class BadRequestError < StandardError; end
+
       include HTTParty
       base_uri 'https://print-api.fluics.com/latest'
 
@@ -14,26 +18,46 @@ module LabelPrinters
       end
 
       def list
-        self.class.get('/get_printers_list')
+        do_request(:get, '/get_printers_list')
       end
 
       def status(lid)
-        self.class.get("/#{lid}/status")
+        do_request(:get, "/#{lid}/status")
       end
 
       def calibrate(lid)
-        self.class.post("/#{lid}/calibrate")
+        do_request(:post, "/#{lid}/calibrate")
       end
 
       def print(lid, zpl)
-        self.class.post(
+        do_request(
+          :post,
           "/#{lid}/print",
-          headers: {
+          params: {
-            'Content-Type' => 'text/plain'
+            headers: { 'Content-Type' => 'text/plain' },
-          },
             body: zpl
+          }
         )
       end
+
+      private
+
+      def do_request(http_method, path, params: {})
+        response = self.class.public_send(http_method, path, params)
+
+        case response.code
+        when 200..299
+          # success response
+        when 404
+          raise NotFoundError, "#{response.code}: #{response.message}"
+        when 400..499
+          raise BadRequestError, "#{response.code}: #{response.message}"
+        when 500...600
+          raise ServerError, "#{response.code}: #{response.message}"
+        end
+
+        response
+      end
     end
   end
 end