added method to es helper to delete index and get mappings

lib/elastic_search_helper.rb

@@ -9,7 +9,7 @@ class ElasticSearchHelper
     @pastebinner = Pastebinner.new(ENV['pastebin_api_key'], ENV['pastebin_username'], ENV['pastebin_password'])
   end
 
-  def create_index
+  def create_index_with_mappings
     header = { 'Content-type': 'application/json' }
     response = RestClient::Request.execute(
       method: :put,
@@ -18,6 +18,19 @@ class ElasticSearchHelper
       payload: self.mappings.to_json)
   end
 
+  def delete_index
+    response = RestClient::Request.execute(
+      method: :delete,
+      url: "#{server_uri}/#{index}")
+  end
+
+  def get_mappings
+    response = RestClient::Request.execute(
+      method: :get,
+      url: "#{server_uri}/#{index}/_mappings")
+  end
+
+
   def mappings
     {
       "mappings": {