Support for dynamic template data.

examples/helpers/mail/example.rb

@@ -125,5 +125,23 @@ def kitchen_sink
   puts response.headers
 end
 
+def dynamic_template_data_hello_world
+  mail = Mail.new
+  mail.template_id = '' # a non-legacy template id
+  mail.from = Email.new(email: '[email protected]')
+  subject = 'Dynamic Template Data Hello World from the SendGrid Ruby Library'
+  mail.subject = subject
+  personalization = Personalization.new
+  personalization.add_to(Email.new(email: '[email protected]', name: 'Example User'))
+  personalization.add_dynamic_template_data({
+    "variable" => [
+      {"foo" => "bar"}, {"foo" => "baz"}
+    ]
+  })
+  mail.add_personalization(personalization)
+end
+
 hello_world
 kitchen_sink
+dynamic_template_data_hello_world
+

lib/sendgrid/helpers/mail/personalization.rb

@@ -3,7 +3,8 @@
 module SendGrid
   class Personalization
 
-    attr_reader :tos, :ccs, :bccs, :headers, :substitutions, :custom_args
+    attr_reader :tos, :ccs, :bccs, :headers, :substitutions, :custom_args,
+      :dynamic_template_data
 
     def initialize
       @tos = []
@@ -13,6 +14,7 @@ def initialize
       @headers = {}
       @substitutions = {}
       @custom_args = {}
+      @dynamic_template_data = {}
       @send_at = nil
     end
 
@@ -51,6 +53,10 @@ def add_custom_arg(custom_arg)
       @custom_args = @custom_args.merge(custom_arg['custom_arg'])
     end
 
+    def add_dynamic_template_data(dynamic_template_data)
+      @dynamic_template_data.merge!(dynamic_template_data)
+    end
+
     def send_at=(send_at)
       @send_at = send_at
     end
@@ -68,6 +74,7 @@ def to_json(*)
         'headers' => self.headers,
         'substitutions' => self.substitutions,
         'custom_args' => self.custom_args,
+        'dynamic_template_data' => self.dynamic_template_data,
         'send_at' => self.send_at
       }.delete_if { |_, value| value.to_s.strip == '' || value == [] || value == {}}
     end

test/sendgrid/helpers/mail/test_personalizations.rb

@@ -143,4 +143,19 @@ def test_add_custom_arg
     assert_equal @personalization.to_json, expected_json
   end
 
+  def test_add_dynamic_template_data
+    @personalization = Personalization.new()
+    @personalization.add_dynamic_template_data({
+        "name"=>"Example User",
+        "city"=> "Denver"
+    })
+    expected_json = {
+        "dynamic_template_data"=>{
+                "name"=>"Example User",
+                "city"=>"Denver"
+            }
+    }
+    assert_equal @personalization.to_json, expected_json
+  end
+
 end