NFTokenModify
NFTokenModify is used to change the URI field of an NFT to point to a different URI in order to update the supporting data for the NFT. The NFT must have been minted with the tfMutable flag set. See Dynamic Non-Fungible Tokens.
Example NFTokenModify JSON
{
"TransactionType": "NFTokenModify",
"Account": "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh",
"Owner": "rogue5HnPRSszD9CWGSUz8UGHMVwSSKF6",
"Fee": "10",
"Sequence": 33,
"NFTokenID": "0008C350C182B4F213B82CCFA4C6F59AD76F0AFCFBDF04D5A048C0A300000007",
"URI": "697066733A2F2F62616679626569636D6E73347A736F6C686C6976346C746D6E356B697062776373637134616C70736D6C6179696970666B73746B736D3472746B652F5665742E706E67"
}NFTokenModify Fields
In addition to the common fields, NFTokenModify transactions use the following fields:
| Field | JSON Type | Internal Type | Description |
|---|---|---|---|
TransactionType | String | UINT16 | Type is NFTokenModify. |
Account | String | AccountID | The unique address of either the issuer or an authorized minter of the NFT. |
Owner | String | AccountID | (Optional) Address of the owner of the NFT. If the Account and Owner are the same address, omit this field. |
NFTokenID | String | Hash256 | Composite field that uniquely identifies the token. |
URI | String | Blob | (Optional) Up to 256 bytes of arbitrary data. In JSON, this should be encoded as a string of hexadecimal. You can use the xrpl.convertStringToHex utility to convert a URI to its hexadecimal equivalent. This is intended to be a URI that points to the data or metadata associated with the NFT. The contents could decode to an HTTP or HTTPS URL, an IPFS URI, a magnet link, immediate data encoded as an RFC 2379 "data" URL, or even an issuer-specific encoding. The URI is not checked for validity. If you do not specify a URI, the existing URI is deleted. |
Error Cases
Besides errors that can occur for all transactions, NFTokenModify transactions can result in the following transaction result codes:
| Error Code | Description |
|---|---|
tecNO_PERMISSION | The tfMutable flag wasn't enabled, so you can't update the URI field. You can also receive this error if the Account field isn't an issuer or authorized minter of the NFT. |