Fix deep compact

lib/timber/events/http_server_request.rb

@@ -29,10 +29,7 @@ def to_hash
       alias to_h to_hash
 
       def as_json(_options = {})
-        hash = to_hash
-        hash[:headers] = Util::Hash.compact(hash[:headers])
-        hash = Util::Hash.compact(hash)
-        {:server_side_app => {:http_request => hash}}
+        {:server_side_app => {:http_request => to_hash}}
       end
 
       def message

lib/timber/log_entry.rb

@@ -39,7 +39,7 @@ def as_json(options = {})
         :time_ms => time_ms}
 
       if !event.nil?
-        hash[:event] = event
+        hash[:event] = event.as_json
       end
 
       if !context_snapshot.nil? && context_snapshot.length > 0
@@ -60,7 +60,7 @@ def as_json(options = {})
         hash
       end
 
-      Util::Hash.compact(hash)
+      Util::Hash.deep_compact(hash)
     end
 
     def to_json(options = {})

lib/timber/util/hash.rb

@@ -4,10 +4,22 @@ module Util
     module Hash
       extend self
 
-      def compact(hash)
-        hash.select do |k, v|
-          v != nil && v != {} && v != []
+      def deep_compact(hash)
+        new_hash = {}
+
+        hash.each do |k, v|
+          v = if v.is_a?(::Hash)
+            deep_compact(v)
+          else
+            v
+          end
+
+          if v != nil && v != "" && v != {} && v != []
+            new_hash[k] = v
+          end
         end
+
+        new_hash
       end
     end
   end