Add Content-type header to Faraday request

Author: Andersond11

lib/shipping_easy/http/faraday_adapter.rb

@@ -26,6 +26,7 @@ def get
     connection.get do |req|
       req.url uri, params
       req.body = request.body
+      req.headers['Content-Type'] = 'application/json' if request.body
     end
   end
 
@@ -36,7 +37,7 @@ def connection
       faraday.adapter Faraday.default_adapter
     end
   end
-  
+
   class CustomUserAgent < Faraday::Middleware
     def initialize(app, agent_string)
       super(app)