added checks parameter

Author: ANKUR DWIVEDI

README.md

@@ -452,7 +452,8 @@ imagekitio.upload_file(
                 value: 'w-100'
             }
         ]
-    }
+    },
+    checks: "'request.folder' : '/'" # To run server side checks before uploading files. Notice the quotes around file.size and 1mb.
 )
 
 ```

lib/imagekitio/constants/file.rb

@@ -5,7 +5,7 @@ module File
 
       VALID_FILE_DETAIL_OPTIONS = ["fileID"]
 
-      VALID_UPLOAD_OPTIONS = %w[file file_name use_unique_file_name tags folder is_private_file custom_coordinates response_fields extensions webhook_url overwrite_file overwrite_AI_tags overwrite_custom_metadata custom_metadata mime overwrite_tags content_type transformation ]
+      VALID_UPLOAD_OPTIONS = %w[file file_name use_unique_file_name tags folder is_private_file custom_coordinates response_fields extensions webhook_url overwrite_file overwrite_AI_tags overwrite_custom_metadata custom_metadata mime overwrite_tags content_type transformation checks]
     end
   end
 end

lib/imagekitio/sdk/version.rb

@@ -1,5 +1,5 @@
 module ImageKitIo
   module Sdk
-    VERSION = '3.0.0'
+    VERSION = '3.1.0'
   end
 end

test/imagekit/api_service/file_test.rb

@@ -253,6 +253,31 @@
       expect(upload[:status_code]).to eq(200)
 
     end
+
+    it "test_upload_with_checks" do
+      request_obj = double
+      allow(ImageKitIo::Request)
+        .to receive(:new)
+              .with(private_key, public_key, url_endpoint)
+              .and_return(request_obj)
+
+      allow(request_obj)
+        .to receive(:create_headers)
+              .and_return({})
+      @ac={}
+      allow(request_obj)
+        .to receive(:request){|method,url,headers,payload| @ac={method: method, url: url, headers: headers, payload:payload}}
+              .and_return({status_code: 200})
+
+      SUT = file_api_service.new(request_obj)
+
+      upload = SUT.upload(file: "./fake_file.jpg", file_name: "my_file_name", checks: '"file.size" < "1mb"')
+
+      expect(@ac[:payload]['checks']).to eq('"file.size" < "1mb"')
+      
+      expect(upload[:status_code]).to eq(200)
+
+    end
   end
 
   describe 'FileListTest' do