Last updated
Last updated
A TokenUpdateNftsTransaction updates the metadata property of non-fungible tokens (NFTs) on the Hedera network. The transaction requires signing with the metadata key and will fail otherwise. The new metadata must be a valid byte array and is limited to 100 bytes. All transactions are recorded on the network, providing an auditable history of changes. The metadata key allows updates to existing NFTs in a collection; if no value is provided for a field, it remains unchanged.
🚨 Metadata keys, like other , must be set during the token creation. If metadata keys are not set when the token is created, they cannot be added later, and you won't be able to update the token's metadata.
With the introduction of , the Supply Key now has the enhanced capability to update the metadata of NFTs while they are held in the treasury account. This enhancement allows for dynamic updates to NFT serial numbers before they are distributed, ensuring that once the NFTs leave the treasury account, their metadata remains immutable. This approach provides security and control, preventing unauthorized modifications after distribution.
Transaction Signing Requirements
Metadata key is required to sign.
Transaction fee payer account key.
Transaction Fees
Please see the transaction and query table for the base transaction fee.
Please use the to estimate your transaction fee cost.
The transaction fee to update the metadata of 1 NFT is $0.001 To update metadata for multiple NFTs in a single call is N x $0.001 (N being the number of NFTs to update). See the full list of token transaction fees .
No, metadata keys are not required for all token types. If your use case will need the ability to update the metadata in the future, the metadata key must be set during token creation. introduces the token metadata field for fungible tokens, providing users the ability to update metadata for both token types (fungible and non-fungible) using the metadata key.
No, this is just like a regular . It will fail if token is paused.
Reference: , ,
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