feat: Add a pre-chat form on widget (#1769)

app/controllers/api/v1/widget/conversations_controller.rb

@@ -5,6 +5,14 @@ class Api::V1::Widget::ConversationsController < Api::V1::Widget::BaseController
     @conversation = conversation
   end
 
+  def create
+    ActiveRecord::Base.transaction do
+      update_contact(contact_email) if @contact.email.blank?
+      @conversation = create_conversation
+      conversation.messages.create(message_params)
+    end
+  end
+
   def update_last_seen
     head :ok && return if conversation.nil?
 
@@ -43,6 +51,6 @@ class Api::V1::Widget::ConversationsController < Api::V1::Widget::BaseController
   end
 
   def permitted_params
-    params.permit(:id, :typing_status, :website_token, :email)
+    params.permit(:id, :typing_status, :website_token, :email, contact: [:name, :email], message: [:content, :referer_url, :timestamp, :echo_id])
   end
 end