--- a/smart_contracs/transfer/Cargo.toml
+++ b/smart_contracs/transfer/Cargo.toml
@@ -4,15 +4,17 @@
 authors = ["[Greg Zaitsev] <[your_email]>"]
 edition = "2018"
 
+[workspace]
+
 [dependencies]
-ink_primitives = { git = "https://github.com/usetech-llc/ink", branch = "unique", default-features = false }
-ink_metadata = { git = "https://github.com/usetech-llc/ink", branch = "unique", default-features = false, features = ["derive"], optional = true }
-ink_env = { git = "https://github.com/usetech-llc/ink", branch = "unique", default-features = false }
-ink_storage = { git = "https://github.com/usetech-llc/ink", branch = "unique", default-features = false }
-ink_lang = { git = "https://github.com/usetech-llc/ink", branch = "unique", default-features = false }
+ink_primitives = { default-features = false }
+ink_metadata = { default-features = false, features = ["derive"], optional = true }
+ink_env = { default-features = false }
+ink_storage = { default-features = false }
+ink_lang = { default-features = false }
 
-scale = { package = "parity-scale-codec", version = "1.3", default-features = false, features = ["derive"] }
-scale-info = { version = "0.4.1", default-features = false, features = ["derive"], optional = true }
+scale = { package = "parity-scale-codec", version = "2.1.1", default-features = false, features = ["derive"] }
+scale-info = { version = "0.6.0", default-features = false, features = ["derive"] }
 
 [lib]
 name = "nft_transfer"
@@ -28,6 +30,7 @@
     "ink_metadata/std",
     "ink_env/std",
     "ink_storage/std",
+    "ink_lang/std",
     "ink_primitives/std",
     "scale/std",
     "scale-info/std",
--- a/smart_contracs/transfer/lib.rs
+++ b/smart_contracs/transfer/lib.rs
@@ -1,4 +1,6 @@
 #![cfg_attr(not(feature = "std"), no_std)]
+extern crate alloc;
+use alloc::vec::Vec;
 
 use ink_lang as ink;
 use ink_env::{Environment, DefaultEnvironment};
@@ -36,6 +38,24 @@
     }
 }
 
+#[derive(scale::Encode, scale::Decode, scale_info::TypeInfo)]
+pub enum CreateItemData {
+    Nft {
+        const_data: Vec<u8>,
+        variable_data: Vec<u8>,
+    },
+    Fungible {
+        value: u128,
+    },
+    ReFungible {
+        const_data: Vec<u8>,
+        variable_data: Vec<u8>,
+        pieces: u128,
+    },
+}
+
+type DefaultAccountId = <DefaultEnvironment as Environment>::AccountId;
+
 #[ink::chain_extension]
 pub trait NftChainExtension {
     type ErrorCode = NftErrorCode;
@@ -43,11 +63,26 @@
     /// Transfer one NFT token from sender
     ///
     #[ink(extension = 0, returns_result = false)]
-    fn transfer(recipient: <DefaultEnvironment as Environment>::AccountId, collection_id: u32, token_id: u32, amount: u128);
+    fn transfer(recipient: DefaultAccountId, collection_id: u32, token_id: u32, amount: u128);
+    #[ink(extension = 1, returns_result = false)]
+    fn create_item(owner: DefaultAccountId, collection_id: u32, data: CreateItemData);
+    #[ink(extension = 2, returns_result = false)]
+    fn create_multiple_items(owner: DefaultAccountId, collection_id: u32, data: Vec<CreateItemData>);
+    #[ink(extension = 3, returns_result = false)]
+    fn approve(spender: DefaultAccountId, collection_id: u32, item_id: u32, amount: u128);
+    #[ink(extension = 4, returns_result = false)]
+    fn transfer_from(owner: DefaultAccountId, recipient: DefaultAccountId, collection_id: u32, item_id: u32, amount: u128);
+    #[ink(extension = 5, returns_result = false)]
+    fn set_variable_meta_data(collection_id: u32, item_id: u32, data: Vec<u8>);
+    #[ink(extension = 6, returns_result = false)]
+    fn toggle_white_list(collection_id: u32, address: DefaultAccountId, whitelisted: bool);
 }
 
-#[ink::contract(env = crate::NftEnvironment)]
+#[ink::contract(env = crate::NftEnvironment, dynamic_storage_allocator = true)]
 mod nft_transfer {
+    use alloc::vec::Vec;
+    // use ink_storage::Vec;
+    use crate::CreateItemData;
 
     #[ink(storage)]
     pub struct NftTransfer {
@@ -69,6 +104,42 @@
                 .extension()
                 .transfer(recipient, collection_id, token_id, amount);
         }
+        #[ink(message)]
+        pub fn create_item(&mut self, recipient: AccountId, collection_id: u32, data: CreateItemData) {
+            let _ = self.env()
+                .extension()
+                .create_item(recipient, collection_id, data);
+        }
+        #[ink(message)]
+        pub fn create_multiple_items(&mut self, owner: AccountId, collection_id: u32, data: Vec<CreateItemData>) {
+            let _ = self.env()
+                .extension()
+                .create_multiple_items(owner, collection_id, data);
+        }
+        #[ink(message)]
+        pub fn approve(&mut self, spender: AccountId, collection_id: u32, item_id: u32, amount: u128) {
+            let _ = self.env()
+                .extension()
+                .approve(spender, collection_id, item_id, amount);
+        }
+        #[ink(message)]
+        pub fn transfer_from(&mut self, owner: AccountId, recipient: AccountId, collection_id: u32, item_id: u32, amount: u128) {
+            let _ = self.env()
+                .extension()
+                .transfer_from(owner, recipient, collection_id, item_id, amount);
+        }
+        #[ink(message)]
+        pub fn set_variable_meta_data(&mut self, collection_id: u32, item_id: u32, data: Vec<u8>) {
+            let _ = self.env()
+                .extension()
+                .set_variable_meta_data(collection_id, item_id, data);
+        }
+        #[ink(message)]
+        pub fn toggle_white_list(&mut self, collection_id: u32, address: AccountId, whitelisted: bool) {
+            let _ = self.env()
+                .extension()
+                .toggle_white_list(collection_id, address, whitelisted);
+        }
 
     }
 
--- a/tests/src/transfer_contract/metadata.json
+++ b/tests/src/transfer_contract/metadata.json
@@ -1,9 +1,9 @@
 {
   "metadataVersion": "0.1.0",
   "source": {
-    "hash": "0xfbbc0729acefed9d99f93f6cbb751d12e317958fd0fe183f5781329b37f1bf6e",
-    "language": "ink! 3.0.0-rc2",
-    "compiler": "rustc 1.51.0-nightly"
+    "hash": "0xc6c3f47adeafe86d1674ed72c7179605787842f2f05a2d7da0dbabf3c4fa1aa8",
+    "language": "ink! 3.0.0-rc3",
+    "compiler": "rustc 1.52.0-nightly"
   },
   "contract": {
     "name": "nft_transfer",
@@ -24,7 +24,7 @@
         "name": [
           "default"
         ],
-        "selector": "0x6a3712e2"
+        "selector": "0xed4b9d1b"
       }
     ],
     "docs": [],
@@ -78,7 +78,268 @@
         ],
         "payable": false,
         "returnType": null,
-        "selector": "0xfae3a09d"
+        "selector": "0x84a15da1"
+      },
+      {
+        "args": [
+          {
+            "name": "recipient",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "data",
+            "type": {
+              "displayName": [
+                "CreateItemData"
+              ],
+              "type": 6
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "create_item"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0xd7c3f083"
+      },
+      {
+        "args": [
+          {
+            "name": "owner",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "data",
+            "type": {
+              "displayName": [
+                "Vec"
+              ],
+              "type": 8
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "create_multiple_items"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0x15f9a1eb"
+      },
+      {
+        "args": [
+          {
+            "name": "spender",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "item_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "amount",
+            "type": {
+              "displayName": [
+                "u128"
+              ],
+              "type": 5
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "approve"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0x681266a0"
+      },
+      {
+        "args": [
+          {
+            "name": "owner",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "recipient",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "item_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "amount",
+            "type": {
+              "displayName": [
+                "u128"
+              ],
+              "type": 5
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "transfer_from"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0x0b396f18"
+      },
+      {
+        "args": [
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "item_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "data",
+            "type": {
+              "displayName": [
+                "Vec"
+              ],
+              "type": 7
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "set_variable_meta_data"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0xb0b26da2"
+      },
+      {
+        "args": [
+          {
+            "name": "collection_id",
+            "type": {
+              "displayName": [
+                "u32"
+              ],
+              "type": 4
+            }
+          },
+          {
+            "name": "address",
+            "type": {
+              "displayName": [
+                "AccountId"
+              ],
+              "type": 1
+            }
+          },
+          {
+            "name": "whitelisted",
+            "type": {
+              "displayName": [
+                "bool"
+              ],
+              "type": 9
+            }
+          }
+        ],
+        "docs": [],
+        "mutates": true,
+        "name": [
+          "toggle_white_list"
+        ],
+        "payable": false,
+        "returnType": null,
+        "selector": "0x98574dac"
       }
     ]
   },
@@ -93,7 +354,8 @@
         "composite": {
           "fields": [
             {
-              "type": 2
+              "type": 2,
+              "typeName": "[u8; 32]"
             }
           ]
         }
@@ -126,6 +388,82 @@
       "def": {
         "primitive": "u128"
       }
+    },
+    {
+      "def": {
+        "variant": {
+          "variants": [
+            {
+              "fields": [
+                {
+                  "name": "const_data",
+                  "type": 7,
+                  "typeName": "Vec<u8>"
+                },
+                {
+                  "name": "variable_data",
+                  "type": 7,
+                  "typeName": "Vec<u8>"
+                }
+              ],
+              "name": "Nft"
+            },
+            {
+              "fields": [
+                {
+                  "name": "value",
+                  "type": 5,
+                  "typeName": "u128"
+                }
+              ],
+              "name": "Fungible"
+            },
+            {
+              "fields": [
+                {
+                  "name": "const_data",
+                  "type": 7,
+                  "typeName": "Vec<u8>"
+                },
+                {
+                  "name": "variable_data",
+                  "type": 7,
+                  "typeName": "Vec<u8>"
+                },
+                {
+                  "name": "pieces",
+                  "type": 5,
+                  "typeName": "u128"
+                }
+              ],
+              "name": "ReFungible"
+            }
+          ]
+        }
+      },
+      "path": [
+        "nft_transfer",
+        "CreateItemData"
+      ]
+    },
+    {
+      "def": {
+        "sequence": {
+          "type": 3
+        }
+      }
+    },
+    {
+      "def": {
+        "sequence": {
+          "type": 6
+        }
+      }
+    },
+    {
+      "def": {
+        "primitive": "bool"
+      }
     }
   ]
 }
\ No newline at end of file