diff --git a/lib/docurest/client.rb b/lib/docurest/client.rb
index e4bd63b..99cbd24 100644
--- a/lib/docurest/client.rb
+++ b/lib/docurest/client.rb
@@ -35,8 +35,10 @@ module Docurest
 
     private
 
-    def multipart_query(klass, url, use_base_url: true, parse_json: true, files: {}, **body)
+    def multipart_query(klass, url, use_base_url: true, parse_json: true, request_query: {}, files: {}, **body)
       uri = build_uri(url, use_base_url)
+      uri.query = URI.encode_www_form(request_query)
+
       if files.empty?
         request = klass.new uri, {'Content-Type' => 'application/json'}
         request.body = JSON.generate(body)
diff --git a/lib/docurest/envelope.rb b/lib/docurest/envelope.rb
index f2a7f56..ab1b53d 100644
--- a/lib/docurest/envelope.rb
+++ b/lib/docurest/envelope.rb
@@ -35,8 +35,8 @@ module Docurest
     field :email_settings, :emailSettings, ->(value) { Docurest::Envelope::EmailSettings.new value }
 
     association(:recipients, :envelope_id) { Docurest::Envelope::Recipient.list(guid) }
-    def save_recipients
-      Docurest::Envelope::Recipient.save recipients
+    def save_recipients(resend: false)
+      Docurest::Envelope::Recipient.save recipients, resend: resend
     end
 
     association(:documents, :envelope_id) { Docurest::Envelope::Document.list(guid) }
@@ -58,13 +58,28 @@ module Docurest
       Docurest::Envelope::Document.new(id: document_id, envelope_id: guid).download(file)
     end
 
+    def resend
+      return unless persisted? && %w{sent delivered}.include?(status)
+      Docurest.client.put "/envelopes/#{guid}", {request_query: {resend_envelope: true}}
+    end
+
+    def fire
+      return unless status == 'created'
+
+      if persisted?
+        Docurest.client.put "/envelopes/#{guid}", {status: :sent}
+      else
+        self.status = :sent
+      end
+    end
+
     def void(reason = 'No reason provided.')
       Docurest.client.put "/envelopes/#{guid}", {status: :voided, voidedReason: reason}
     end
 
-    def save
+    def save(resend: false)
       result = if persisted?
-        Docurest.client.put "/envelopes/#{guid}", to_h
+        Docurest.client.put "/envelopes/#{guid}", to_h.merge(request_query: {resend_envelope: resend})
       else
         Docurest.client.post "/envelopes", to_h
       end
diff --git a/lib/docurest/envelope/recipient.rb b/lib/docurest/envelope/recipient.rb
index 47060d6..078a6da 100644
--- a/lib/docurest/envelope/recipient.rb
+++ b/lib/docurest/envelope/recipient.rb
@@ -12,10 +12,11 @@ module Docurest
       end
     end
 
-    def self.save(recipients)
+    def self.save(recipients, resend: false)
       Array(recipients).group_by(&:envelope_id).each do |envelope_id, array|
         next unless envelope_id
-        Docurest.client.put "/envelopes/#{envelope_id}/recipients", Docurest::Base.hash_by_type(array)
+        Docurest.client.put "/envelopes/#{envelope_id}/recipients",
+          Docurest::Base.hash_by_type(array).merge(request_query: {resend_envelope: resend})
       end
     end
 
@@ -46,11 +47,12 @@ module Docurest
         name: name,
         email: email,
         customFields: customFields,
-        emailNotification: email_notification.to_h,
         routingOrder: routingOrder,
         note: note,
         tabs: Docurest::Base.hash_by_type(tabs),
-      }
+      }.tap do |hash|
+        hash[:emailNotification] = email_notification.to_h if email_notification
+      end
     end
   end
 end