NFT721Api

@nevermined-io/sdk - v3.0.32 / NFT721Api

Class: NFT721Api

Allows the interaction with external ERC-721 NFT contracts built on top of the Nevermined NFT extra features.

Hierarchy

NFTsBaseApi
↳ NFT721Api
↳↳ SubscriptionNFTApi

Constructors

constructor

Properties

Accessors

Methods

Constructors

constructor

• new NFT721Api(): NFT721Api

Returns

NFT721Api

Inherited from

NFTsBaseApi.constructor

Properties

nftContract

• nftContract: Nft721Contract

Defined in

src/nevermined/api/nfts/NFT721Api.ts:27

servicePlugin

• servicePlugin: Object

Accessors

address

• get address(): string

Gets the ERC-721 NFT Contract address

Returns

string

The NFT contract address

Defined in

src/nevermined/api/nfts/NFT721Api.ts:60

artifactsFolder

• get artifactsFolder(): undefined | string

Returns

undefined | string

Inherited from

NFTsBaseApi.artifactsFolder

Defined in

src/Instantiable.abstract.ts:137

circuitsFolder

• get circuitsFolder(): undefined | string

Returns

undefined | string

Inherited from

NFTsBaseApi.circuitsFolder

Defined in

src/Instantiable.abstract.ts:141

client

• get client(): Web3Clients

Returns

Web3Clients

Inherited from

NFTsBaseApi.client

Defined in

src/Instantiable.abstract.ts:89

config

• get config(): NeverminedOptions

Returns

NeverminedOptions

Inherited from

NFTsBaseApi.config

Defined in

src/Instantiable.abstract.ts:120

getContract

• get getContract(): Nft721Contract

Gets the instance of the ERC-721 NFT Contract where the API is connected

Returns

Nft721Contract

The Nft721Contract instance

Defined in

src/nevermined/api/nfts/NFT721Api.ts:68

instanceConfig

• get instanceConfig(): InstantiableConfig

Returns

InstantiableConfig

Inherited from

NFTsBaseApi.instanceConfig

Defined in

src/Instantiable.abstract.ts:145

instantiableConfig

• get instantiableConfig(): undefined | InstantiableConfig

Returns

undefined | InstantiableConfig

Inherited from

NFTsBaseApi.instantiableConfig

Defined in

src/Instantiable.abstract.ts:113

logger

• get logger(): Logger

Returns

Logger

Inherited from

NFTsBaseApi.logger

Defined in

src/Instantiable.abstract.ts:128

nevermined

• get nevermined(): Nevermined

Returns

Nevermined

Inherited from

NFTsBaseApi.nevermined

Defined in

src/Instantiable.abstract.ts:81

publicClient

• get publicClient(): Object

Returns

Object

Name	Type	Description
`account`	`undefined`	The Account of the Client.
`batch?`	{ `multicall?`: `boolean` \| { `batchSize?`: `number` ; `wait?`: `number` } }	Flags for batch settings.
`batch.multicall?`	`boolean` \| { `batchSize?`: `number` ; `wait?`: `number` }	Toggle to enable `eth_call` multicall aggregation.
`cacheTime`	`number`	Time (in ms) that cached data will remain in memory.
`call`	(`parameters`: `CallParameters`\<`undefined` \| `Chain`>) => `Promise`\<`CallReturnType`>	-
`ccipRead?`	`false` \| { `request?`: (`parameters`: `CcipRequestParameters`) => `Promise`\<`0x${string}`> }	CCIP Read configuration.
`chain`	`undefined` \| `Chain`	Chain for the client.
`createBlockFilter`	() => `Promise`\<{ `id`: `0x${string}` ; `request`: `EIP1193RequestFn`\<readonly [{ `Method`: `"eth_getFilterChanges"` ; `Parameters`: [filterId: `0x${string}`] ; `ReturnType`: `0x${string}`[] \| `RpcLog`[] }, { `Method`: `"eth_getFilterLogs"` ; `Parameters`: [filterId: `0x${string}`] ; `ReturnType`: `RpcLog`[] }, { `Method`: `"eth_uninstallFilter"` ; `Parameters`: [filterId: `0x${string}`] ; `ReturnType`: `boolean` }]> ; `type`: `"block"` }>	-
`createContractEventFilter`	\<TAbi, TEventName, TArgs, TStrict, TFromBlock, TToBlock>(`args`: `CreateContractEventFilterParameters`\<`TAbi`, `TEventName`, `TArgs`, `TStrict`, `TFromBlock`, `TToBlock`>) => `Promise`\<`CreateContractEventFilterReturnType`\<`TAbi`, `TEventName`, `TArgs`, `TStrict`, `TFromBlock`, `TToBlock`>>	-
`createEventFilter`	\<TAbiEvent, TAbiEvents, TStrict, TFromBlock, TToBlock, _EventName, _Args>(`args?`: `CreateEventFilterParameters`\<`TAbiEvent`, `TAbiEvents`, `TStrict`, `TFromBlock`, `TToBlock`, `_EventName`, `_Args`>) => `Promise`\<{ [K in string \| number \| symbol]: Filter\<"event", TAbiEvents, _EventName, _Args, TStrict, TFromBlock, TToBlock>[K] }>	-
`createPendingTransactionFilter`	() => `Promise`\<{ `id`: `0x${string}` ; `request`: `EIP1193RequestFn`\<readonly [{ `Method`: `"eth_getFilterChanges"` ; `Parameters`: [filterId: `0x${string}`] ; `ReturnType`: `0x${string}`[] \| `RpcLog`[] }, { `Method`: `"eth_getFilterLogs"` ; `Parameters`: [filterId: `0x${string}`] ; `ReturnType`: `RpcLog`[] }, { `Method`: `"eth_uninstallFilter"` ; `Parameters`: [filterId: `0x${string}`] ; `ReturnType`: `boolean` }]> ; `type`: `"transaction"` }>	-
`estimateContractGas`	\<TChain, abi, functionName, args>(`args`: `EstimateContractGasParameters`\<`abi`, `functionName`, `args`, `TChain`>) => `Promise`\<`bigint`>	-
`estimateFeesPerGas`	\<TChainOverride, TType>(`args?`: `EstimateFeesPerGasParameters`\<`undefined` \| `Chain`, `TChainOverride`, `TType`>) => `Promise`\<`EstimateFeesPerGasReturnType`>	-
`estimateGas`	(`args`: `EstimateGasParameters`\<`undefined` \| `Chain`>) => `Promise`\<`bigint`>	-
`estimateMaxPriorityFeePerGas`	\<TChainOverride>(`args?`: { `chain`: `null` \| `TChainOverride` }) => `Promise`\<`bigint`>	-
`extend`	\<client>(`fn`: (`client`: `Client`\<`Transport`, `undefined` \| `Chain`, `undefined`, `PublicRpcSchema`, `PublicActions`\<`Transport`, `undefined` \| `Chain`>>) => `client`) => `Client`\<`Transport`, `undefined` \| `Chain`, `undefined`, `PublicRpcSchema`, { [K in string \| number \| symbol]: client[K] } & `PublicActions`\<`Transport`, `undefined` \| `Chain`>>	-
`getBalance`	(`args`: `GetBalanceParameters`) => `Promise`\<`bigint`>	-
`getBlobBaseFee`	() => `Promise`\<`bigint`>	-
`getBlock`	\<TIncludeTransactions, TBlockTag>(`args?`: `GetBlockParameters`\<`TIncludeTransactions`, `TBlockTag`>) => `Promise`\<{ `baseFeePerGas`: `null` \| `bigint` ; `blobGasUsed`: `bigint` ; `difficulty`: `bigint` ; `excessBlobGas`: `bigint` ; `extraData`: `0x${string}` ; `gasLimit`: `bigint` ; `gasUsed`: `bigint` ; `hash`: `TBlockTag` extends `"pending"` ? `null` : `0x${string}` ; `logsBloom`: `TBlockTag` extends `"pending"` ? `null` : `0x${string}` ; `miner`: `0x${string}` ; `mixHash`: `0x${string}` ; `nonce`: `TBlockTag` extends `"pending"` ? `null` : `0x${string}` ; `number`: `TBlockTag` extends `"pending"` ? `null` : `bigint` ; `parentHash`: `0x${string}` ; `receiptsRoot`: `0x${string}` ; `sealFields`: `0x${string}`[] ; `sha3Uncles`: `0x${string}` ; `size`: `bigint` ; `stateRoot`: `0x${string}` ; `timestamp`: `bigint` ; `totalDifficulty`: `null` \| `bigint` ; `transactions`: `TIncludeTransactions` extends `true` ? ({ `accessList?`: `undefined` ; `blobVersionedHashes?`: `undefined` ; `blockHash`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `0x${string}` ; `blockNumber`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `bigint` ; `chainId?`: `number` ; `from`: `0x${string}` ; `gas`: `bigint` ; `gasPrice`: `bigint` ; `hash`: `0x${string}` ; `input`: `0x${string}` ; `maxFeePerBlobGas?`: `undefined` ; `maxFeePerGas?`: `undefined` ; `maxPriorityFeePerGas?`: `undefined` ; `nonce`: `number` ; `r`: `0x${string}` ; `s`: `0x${string}` ; `to`: `null` \| `0x${string}` ; `transactionIndex`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `number` ; `type`: `"legacy"` ; `typeHex`: `null` \| `0x${string}` ; `v`: `bigint` ; `value`: `bigint` ; `yParity?`: `undefined` } \| { `accessList`: `AccessList` ; `blobVersionedHashes?`: `undefined` ; `blockHash`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `0x${string}` ; `blockNumber`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `bigint` ; `chainId`: `number` ; `from`: `0x${string}` ; `gas`: `bigint` ; `gasPrice`: `bigint` ; `hash`: `0x${string}` ; `input`: `0x${string}` ; `maxFeePerBlobGas?`: `undefined` ; `maxFeePerGas?`: `undefined` ; `maxPriorityFeePerGas?`: `undefined` ; `nonce`: `number` ; `r`: `0x${string}` ; `s`: `0x${string}` ; `to`: `null` \| `0x${string}` ; `transactionIndex`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `number` ; `type`: `"eip2930"` ; `typeHex`: `null` \| `0x${string}` ; `v`: `bigint` ; `value`: `bigint` ; `yParity`: `number` } \| { `accessList`: `AccessList` ; `blobVersionedHashes?`: `undefined` ; `blockHash`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `0x${string}` ; `blockNumber`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `bigint` ; `chainId`: `number` ; `from`: `0x${string}` ; `gas`: `bigint` ; `gasPrice?`: `undefined` ; `hash`: `0x${string}` ; `input`: `0x${string}` ; `maxFeePerBlobGas?`: `undefined` ; `maxFeePerGas`: `bigint` ; `maxPriorityFeePerGas`: `bigint` ; `nonce`: `number` ; `r`: `0x${string}` ; `s`: `0x${string}` ; `to`: `null` \| `0x${string}` ; `transactionIndex`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `number` ; `type`: `"eip1559"` ; `typeHex`: `null` \| `0x${string}` ; `v`: `bigint` ; `value`: `bigint` ; `yParity`: `number` } \| { `accessList`: `AccessList` ; `blobVersionedHashes`: `0x${string}`[] ; `blockHash`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `0x${string}` ; `blockNumber`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `bigint` ; `chainId`: `number` ; `from`: `0x${string}` ; `gas`: `bigint` ; `gasPrice?`: `undefined` ; `hash`: `0x${string}` ; `input`: `0x${string}` ; `maxFeePerBlobGas`: `bigint` ; `maxFeePerGas`: `bigint` ; `maxPriorityFeePerGas`: `bigint` ; `nonce`: `number` ; `r`: `0x${string}` ; `s`: `0x${string}` ; `to`: `null` \| `0x${string}` ; `transactionIndex`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `number` ; `type`: `"eip4844"` ; `typeHex`: `null` \| `0x${string}` ; `v`: `bigint` ; `value`: `bigint` ; `yParity`: `number` })[] : `0x${string}`[] ; `transactionsRoot`: `0x${string}` ; `uncles`: `0x${string}`[] ; `withdrawals?`: `Withdrawal`[] ; `withdrawalsRoot?`: `0x${string}` }>	-
`getBlockNumber`	(`args?`: `GetBlockNumberParameters`) => `Promise`\<`bigint`>	-
`getBlockTransactionCount`	(`args?`: `GetBlockTransactionCountParameters`) => `Promise`\<`number`>	-
`getBytecode`	(`args`: `GetBytecodeParameters`) => `Promise`\<`GetBytecodeReturnType`>	-
`getChainId`	() => `Promise`\<`number`>	-
`getContractEvents`	\<abi, eventName, strict, fromBlock, toBlock>(`args`: `GetContractEventsParameters`\<`abi`, `eventName`, `strict`, `fromBlock`, `toBlock`>) => `Promise`\<`GetContractEventsReturnType`\<`abi`, `eventName`, `strict`, `fromBlock`, `toBlock`>>	-
`getEnsAddress`	(`args`: { `blockNumber?`: `bigint` ; `blockTag?`: `BlockTag` ; `coinType?`: `number` ; `gatewayUrls?`: `string`[] ; `name`: `string` ; `strict?`: `boolean` ; `universalResolverAddress?`: `0x${string}` }) => `Promise`\<`GetEnsAddressReturnType`>	-
`getEnsAvatar`	(`args`: { `assetGatewayUrls?`: `AssetGatewayUrls` ; `blockNumber?`: `bigint` ; `blockTag?`: `BlockTag` ; `gatewayUrls?`: `string`[] ; `name`: `string` ; `strict?`: `boolean` ; `universalResolverAddress?`: `0x${string}` }) => `Promise`\<`GetEnsAvatarReturnType`>	-
`getEnsName`	(`args`: { `address`: `0x${string}` ; `blockNumber?`: `bigint` ; `blockTag?`: `BlockTag` ; `gatewayUrls?`: `string`[] ; `strict?`: `boolean` ; `universalResolverAddress?`: `0x${string}` }) => `Promise`\<`GetEnsNameReturnType`>	-
`getEnsResolver`	(`args`: { `blockNumber?`: `bigint` ; `blockTag?`: `BlockTag` ; `name`: `string` ; `universalResolverAddress?`: `0x${string}` }) => `Promise`\<`0x${string}`>	-
`getEnsText`	(`args`: { `blockNumber?`: `bigint` ; `blockTag?`: `BlockTag` ; `gatewayUrls?`: `string`[] ; `key`: `string` ; `name`: `string` ; `strict?`: `boolean` ; `universalResolverAddress?`: `0x${string}` }) => `Promise`\<`GetEnsTextReturnType`>	-
`getFeeHistory`	(`args`: `GetFeeHistoryParameters`) => `Promise`\<`GetFeeHistoryReturnType`>	-
`getFilterChanges`	\<TFilterType, TAbi, TEventName, TStrict, TFromBlock, TToBlock>(`args`: `GetFilterChangesParameters`\<`TFilterType`, `TAbi`, `TEventName`, `TStrict`, `TFromBlock`, `TToBlock`>) => `Promise`\<`GetFilterChangesReturnType`\<`TFilterType`, `TAbi`, `TEventName`, `TStrict`, `TFromBlock`, `TToBlock`>>	-
`getFilterLogs`	\<TAbi, TEventName, TStrict, TFromBlock, TToBlock>(`args`: `GetFilterLogsParameters`\<`TAbi`, `TEventName`, `TStrict`, `TFromBlock`, `TToBlock`>) => `Promise`\<`GetFilterLogsReturnType`\<`TAbi`, `TEventName`, `TStrict`, `TFromBlock`, `TToBlock`>>	-
`getGasPrice`	() => `Promise`\<`bigint`>	-
`getLogs`	\<TAbiEvent, TAbiEvents, TStrict, TFromBlock, TToBlock>(`args?`: `GetLogsParameters`\<`TAbiEvent`, `TAbiEvents`, `TStrict`, `TFromBlock`, `TToBlock`>) => `Promise`\<`GetLogsReturnType`\<`TAbiEvent`, `TAbiEvents`, `TStrict`, `TFromBlock`, `TToBlock`>>	-
`getProof`	(`args`: `GetProofParameters`) => `Promise`\<`GetProofReturnType`>	-
`getStorageAt`	(`args`: `GetStorageAtParameters`) => `Promise`\<`GetStorageAtReturnType`>	-
`getTransaction`	\<TBlockTag>(`args`: `GetTransactionParameters`\<`TBlockTag`>) => `Promise`\<{ `accessList?`: `undefined` ; `blobVersionedHashes?`: `undefined` ; `blockHash`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `0x${string}` ; `blockNumber`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `bigint` ; `chainId?`: `number` ; `from`: `0x${string}` ; `gas`: `bigint` ; `gasPrice`: `bigint` ; `hash`: `0x${string}` ; `input`: `0x${string}` ; `maxFeePerBlobGas?`: `undefined` ; `maxFeePerGas?`: `undefined` ; `maxPriorityFeePerGas?`: `undefined` ; `nonce`: `number` ; `r`: `0x${string}` ; `s`: `0x${string}` ; `to`: `null` \| `0x${string}` ; `transactionIndex`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `number` ; `type`: `"legacy"` ; `typeHex`: `null` \| `0x${string}` ; `v`: `bigint` ; `value`: `bigint` ; `yParity?`: `undefined` } \| { `accessList`: `AccessList` ; `blobVersionedHashes?`: `undefined` ; `blockHash`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `0x${string}` ; `blockNumber`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `bigint` ; `chainId`: `number` ; `from`: `0x${string}` ; `gas`: `bigint` ; `gasPrice`: `bigint` ; `hash`: `0x${string}` ; `input`: `0x${string}` ; `maxFeePerBlobGas?`: `undefined` ; `maxFeePerGas?`: `undefined` ; `maxPriorityFeePerGas?`: `undefined` ; `nonce`: `number` ; `r`: `0x${string}` ; `s`: `0x${string}` ; `to`: `null` \| `0x${string}` ; `transactionIndex`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `number` ; `type`: `"eip2930"` ; `typeHex`: `null` \| `0x${string}` ; `v`: `bigint` ; `value`: `bigint` ; `yParity`: `number` } \| { `accessList`: `AccessList` ; `blobVersionedHashes?`: `undefined` ; `blockHash`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `0x${string}` ; `blockNumber`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `bigint` ; `chainId`: `number` ; `from`: `0x${string}` ; `gas`: `bigint` ; `gasPrice?`: `undefined` ; `hash`: `0x${string}` ; `input`: `0x${string}` ; `maxFeePerBlobGas?`: `undefined` ; `maxFeePerGas`: `bigint` ; `maxPriorityFeePerGas`: `bigint` ; `nonce`: `number` ; `r`: `0x${string}` ; `s`: `0x${string}` ; `to`: `null` \| `0x${string}` ; `transactionIndex`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `number` ; `type`: `"eip1559"` ; `typeHex`: `null` \| `0x${string}` ; `v`: `bigint` ; `value`: `bigint` ; `yParity`: `number` } \| { `accessList`: `AccessList` ; `blobVersionedHashes`: `0x${string}`[] ; `blockHash`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `0x${string}` ; `blockNumber`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `bigint` ; `chainId`: `number` ; `from`: `0x${string}` ; `gas`: `bigint` ; `gasPrice?`: `undefined` ; `hash`: `0x${string}` ; `input`: `0x${string}` ; `maxFeePerBlobGas`: `bigint` ; `maxFeePerGas`: `bigint` ; `maxPriorityFeePerGas`: `bigint` ; `nonce`: `number` ; `r`: `0x${string}` ; `s`: `0x${string}` ; `to`: `null` \| `0x${string}` ; `transactionIndex`: `TBlockTag` extends `"pending"` ? `true` : `false` extends `true` ? `null` : `number` ; `type`: `"eip4844"` ; `typeHex`: `null` \| `0x${string}` ; `v`: `bigint` ; `value`: `bigint` ; `yParity`: `number` }>	-
`getTransactionConfirmations`	(`args`: `GetTransactionConfirmationsParameters`\<`undefined` \| `Chain`>) => `Promise`\<`bigint`>	-
`getTransactionCount`	(`args`: `GetTransactionCountParameters`) => `Promise`\<`number`>	-
`getTransactionReceipt`	(`args`: `GetTransactionReceiptParameters`) => `Promise`\<`TransactionReceipt`>	-
`key`	`string`	A key for the client.
`multicall`	\<contracts, allowFailure>(`args`: `MulticallParameters`\<`contracts`, `allowFailure`>) => `Promise`\<`MulticallReturnType`\<`contracts`, `allowFailure`>>	-
`name`	`string`	A name for the client.
`pollingInterval`	`number`	Frequency (in ms) for polling enabled actions & events. Defaults to 4_000 milliseconds.
`prepareTransactionRequest`	\<TRequest, TChainOverride, TAccountOverride>(`args`: `PrepareTransactionRequestParameters`\<`undefined` \| `Chain`, `undefined` \| `Account`, `TChainOverride`, `TAccountOverride`, `TRequest`>) => `Promise`\<{ [K in string \| number \| symbol]: (UnionRequiredBy\<Extract\<UnionOmit\<(...), (...)> & ((...) extends (...) ? (...) : (...)) & ((...) extends (...) ? (...) : (...)), IsNever\<(...)> extends true ? unknown : ExactPartial\<(...)>> & Object, ParameterTypeToParameters\<TRequest["parameters"] extends readonly PrepareTransactionRequestParameterType[] ? any[any][number] : "type" \| "gas" \| "nonce" \| "blobVersionedHashes" \| "chainId" \| "fees">> & (unknown extends TRequest["kzg"] ? Object : Pick\<TRequest, "kzg">))[K] }>	-
`readContract`	\<abi, functionName, args>(`args`: `ReadContractParameters`\<`abi`, `functionName`, `args`>) => `Promise`\<`ReadContractReturnType`\<`abi`, `functionName`, `args`>>	-
`request`	`EIP1193RequestFn`\<`PublicRpcSchema`>	Request function wrapped with friendly error handling
`sendRawTransaction`	(`args`: `SendRawTransactionParameters`) => `Promise`\<`0x${string}`>	-
`simulateContract`	\<abi, functionName, args, chainOverride, accountOverride>(`args`: `SimulateContractParameters`\<`abi`, `functionName`, `args`, `undefined` \| `Chain`, `chainOverride`, `accountOverride`>) => `Promise`\<`SimulateContractReturnType`\<`abi`, `functionName`, `args`, `undefined` \| `Chain`, `undefined` \| `Account`, `chainOverride`, `accountOverride`>>	-
`transport`	`TransportConfig`\<`string`, `EIP1193RequestFn`> & `Record`\<`string`, `any`>	The RPC transport
`type`	`string`	The type of client.
`uid`	`string`	A unique ID for the client.
`uninstallFilter`	(`args`: `UninstallFilterParameters`) => `Promise`\<`boolean`>	-
`verifyMessage`	(`args`: `VerifyMessageParameters`) => `Promise`\<`boolean`>	-
`verifyTypedData`	(`args`: `VerifyTypedDataParameters`) => `Promise`\<`boolean`>	-
`waitForTransactionReceipt`	(`args`: `WaitForTransactionReceiptParameters`\<`undefined` \| `Chain`>) => `Promise`\<`TransactionReceipt`>	-
`watchBlockNumber`	(`args`: `WatchBlockNumberParameters`) => `WatchBlockNumberReturnType`	-
`watchBlocks`	\<TIncludeTransactions, TBlockTag>(`args`: `WatchBlocksParameters`\<`Transport`, `undefined` \| `Chain`, `TIncludeTransactions`, `TBlockTag`>) => `WatchBlocksReturnType`	-
`watchContractEvent`	\<TAbi, TEventName, TStrict>(`args`: `WatchContractEventParameters`\<`TAbi`, `TEventName`, `TStrict`, `Transport`>) => `WatchContractEventReturnType`	-
`watchEvent`	\<TAbiEvent, TAbiEvents, TStrict>(`args`: `WatchEventParameters`\<`TAbiEvent`, `TAbiEvents`, `TStrict`, `Transport`>) => `WatchEventReturnType`	-
`watchPendingTransactions`	(`args`: `WatchPendingTransactionsParameters`\<`Transport`>) => `WatchPendingTransactionsReturnType`	-

Inherited from

NFTsBaseApi.publicClient

Defined in

src/Instantiable.abstract.ts:97

walletClient

• get walletClient(): Object

Returns

Object

Name	Type	Description
`account`	`undefined` \| `Account`	The Account of the Client.
`addChain`	(`args`: `AddChainParameters`) => `Promise`\<`void`>	-
`batch?`	{ `multicall?`: `boolean` \| { `batchSize?`: `number` ; `wait?`: `number` } }	Flags for batch settings.
`batch.multicall?`	`boolean` \| { `batchSize?`: `number` ; `wait?`: `number` }	Toggle to enable `eth_call` multicall aggregation.
`cacheTime`	`number`	Time (in ms) that cached data will remain in memory.
`ccipRead?`	`false` \| { `request?`: (`parameters`: `CcipRequestParameters`) => `Promise`\<`0x${string}`> }	CCIP Read configuration.
`chain`	`undefined` \| `Chain`	Chain for the client.
`deployContract`	\<abi, chainOverride>(`args`: `DeployContractParameters`\<`abi`, `undefined` \| `Chain`, `undefined` \| `Account`, `chainOverride`>) => `Promise`\<`0x${string}`>	-
`extend`	\<client>(`fn`: (`client`: `Client`\<`Transport`, `undefined` \| `Chain`, `undefined` \| `Account`, `WalletRpcSchema`, `WalletActions`\<`undefined` \| `Chain`, `undefined` \| `Account`>>) => `client`) => `Client`\<`Transport`, `undefined` \| `Chain`, `undefined` \| `Account`, `WalletRpcSchema`, { [K in string \| number \| symbol]: client[K] } & `WalletActions`\<`undefined` \| `Chain`, `undefined` \| `Account`>>	-
`getAddresses`	() => `Promise`\<`GetAddressesReturnType`>	-
`getChainId`	() => `Promise`\<`number`>	-
`getPermissions`	() => `Promise`\<`GetPermissionsReturnType`>	-
`key`	`string`	A key for the client.
`name`	`string`	A name for the client.
`pollingInterval`	`number`	Frequency (in ms) for polling enabled actions & events. Defaults to 4_000 milliseconds.
`prepareTransactionRequest`	\<TRequest, TChainOverride, TAccountOverride>(`args`: `PrepareTransactionRequestParameters`\<`undefined` \| `Chain`, `undefined` \| `Account`, `TChainOverride`, `TAccountOverride`, `TRequest`>) => `Promise`\<{ [K in string \| number \| symbol]: (UnionRequiredBy\<Extract\<UnionOmit\<(...), (...)> & ((...) extends (...) ? (...) : (...)) & ((...) extends (...) ? (...) : (...)), IsNever\<(...)> extends true ? unknown : ExactPartial\<(...)>> & Object, ParameterTypeToParameters\<TRequest["parameters"] extends readonly PrepareTransactionRequestParameterType[] ? any[any][number] : "type" \| "gas" \| "nonce" \| "blobVersionedHashes" \| "chainId" \| "fees">> & (unknown extends TRequest["kzg"] ? Object : Pick\<TRequest, "kzg">))[K] }>	-
`request`	`EIP1193RequestFn`\<`WalletRpcSchema`>	Request function wrapped with friendly error handling
`requestAddresses`	() => `Promise`\<`RequestAddressesReturnType`>	-
`requestPermissions`	(`args`: { `eth_accounts`: `Record`\<`string`, `any`> }) => `Promise`\<`RequestPermissionsReturnType`>	-
`sendRawTransaction`	(`args`: `SendRawTransactionParameters`) => `Promise`\<`0x${string}`>	-
`sendTransaction`	\<TRequest, TChainOverride>(`args`: `SendTransactionParameters`\<`undefined` \| `Chain`, `undefined` \| `Account`, `TChainOverride`, `TRequest`>) => `Promise`\<`0x${string}`>	-
`signMessage`	(`args`: `SignMessageParameters`\<`undefined` \| `Account`>) => `Promise`\<`0x${string}`>	-
`signTransaction`	\<TChainOverride>(`args`: `SignTransactionParameters`\<`undefined` \| `Chain`, `undefined` \| `Account`, `TChainOverride`>) => `Promise`\<`0x02${string}` \| `0x01${string}` \| `0x03${string}` \| `TransactionSerializedLegacy`>	-
`signTypedData`	\<TTypedData, TPrimaryType>(`args`: `SignTypedDataParameters`\<`TTypedData`, `TPrimaryType`, `undefined` \| `Account`>) => `Promise`\<`0x${string}`>	-
`switchChain`	(`args`: `SwitchChainParameters`) => `Promise`\<`void`>	-
`transport`	`TransportConfig`\<`string`, `EIP1193RequestFn`> & `Record`\<`string`, `any`>	The RPC transport
`type`	`string`	The type of client.
`uid`	`string`	A unique ID for the client.
`watchAsset`	(`args`: `WatchAssetParams`) => `Promise`\<`boolean`>	-
`writeContract`	\<abi, functionName, args, TChainOverride>(`args`: `WriteContractParameters`\<`abi`, `functionName`, `args`, `undefined` \| `Chain`, `undefined` \| `Account`, `TChainOverride`>) => `Promise`\<`0x${string}`>	-

Inherited from

NFTsBaseApi.walletClient

Defined in

src/Instantiable.abstract.ts:105

Methods

_details

▸ _details(did, ercType): Promise\<{ blockNumberUpdated: number ; lastChecksum: any ; lastUpdatedBy: any ; mintCap: bigint ; nftContractAddress: any ; nftInitialized: any ; nftSupply: bigint ; nftURI: string ; owner: any ; providers: any ; royalties: number ; royaltyScheme: RoyaltyKind ; url: any }>

Get the details of an NFT

Parameters

Name	Type	Description
`did`	`string`	The Decentralized Identifier of the NFT asset.
`ercType`	`ERCType`	The type of NFT used

Returns

Promise\<{ blockNumberUpdated: number ; lastChecksum: any ; lastUpdatedBy: any ; mintCap: bigint ; nftContractAddress: any ; nftInitialized: any ; nftSupply: bigint ; nftURI: string ; owner: any ; providers: any ; royalties: number ; royaltyScheme: RoyaltyKind ; url: any }>

The details of the NFT.

Example

const details = await nevermined.nfts1155.details(ddo.id)

// The `details` object includes the NFT information

assert.equal(details.mintCap, 5)
assert.equal(details.nftSupply, 5)
assert.equal(details.royaltyScheme, RoyaltyKind.Standard)
assert.equal(details.royalties, 100000)
assert.equal(details.owner, artist.getId())

Inherited from

NFTsBaseApi._details

Defined in

src/nevermined/api/nfts/NFTsBaseApi.ts:152

access

▸ access(did, from, destination?, fileIndex?, agreementId?, buyer?, babysig?, serviceReference?): Promise\<boolean>

Access the files associated with an NFT.

Parameters

Name	Type	Default value	Description
`did`	`string`	`undefined`	The Decentralized Identifier of the NFT asset.
`from`	`NvmAccount`	`undefined`	The user account holding NFTs (after purchase) requesting the access
`destination?`	`string`	`undefined`	The download destination for the files.
`fileIndex?`	`number`	`undefined`	The index of the file. If unset will download all the files in the asset.
`agreementId`	`string`	`'0x'`	The NFT sales agreement id.
`buyer?`	`string`	`undefined`	Key which represent the buyer
`babysig?`	`Babysig`	`undefined`	-
`serviceReference`	`number` \| `ServiceType`	`'nft-access'`	The service reference to use. By default is nft-access.

Returns

Promise\<boolean>

true if the access was successful or file if isToDownload is false.

Remarks

This function will call the Node that will check if all the access conditions where fulfilled before providing the files.

Example

const result = await nevermined.nfts1155.access(ddo.id, collector, '/tmp/')

Inherited from

NFTsBaseApi.access

Defined in

src/nevermined/api/nfts/NFTsBaseApi.ts:427

addRating

▸ addRating(did, newRating, numVotesAdded?, from, publishMetadata?, txParams?): SubscribablePromise\<UpdateProgressStep, DDO>

Given a DID, it adds a vote to the asset curation information.

Parameters

Name	Type	Default value	Description
`did`	`string`	`undefined`	Decentralized ID representing the unique id of an asset in a Nevermined network.
`newRating`	`number`	`undefined`	New average rating of the asset
`numVotesAdded`	`number`	`1`	Number of new votes added to the rating, typically just 1
`from`	`NvmAccount`	`undefined`	Account of the user updating the metadata
`publishMetadata`	`PublishMetadataOptions`	`PublishMetadataOptions.OnlyMetadataAPI`	It allows to specify where to store the metadata
`txParams?`	`TxParameters`	`undefined`	Optional transaction parameters

Returns

SubscribablePromise\<UpdateProgressStep, DDO>

DDO The DDO updated

Inherited from

NFTsBaseApi.addRating

Defined in

src/nevermined/api/RegistryBaseApi.ts:539

balanceOf

▸ balanceOf(account): Promise\<bigint>

Get the NFT balance for a particular account/address

Parameters

Name	Type	Description
`account`	`string` \| `NvmAccount`	The account/address to check the balance of.

Returns

Promise\<bigint>

The balance of NFTs owned by the account.

Example

const balance = await nevermined.nfts721.balance(artist)

Defined in

src/nevermined/api/nfts/NFT721Api.ts:506

burn

▸ burn(tokenId, from, txParams?): Promise\<any>

Burn NFTs associated with an asset.

Parameters

Name	Type	Description
`tokenId`	`string`	The identifier of the token to burn
`from`	`NvmAccount`	The account of the publisher of the NFT.
`txParams?`	`TxParameters`	Optional transaction parameters.

Returns

Promise\<any>

The TransactionReceipt

Remarks

The publisher can only burn NFTs that it owns. NFTs that were already transferred cannot be burned by the publisher.

Example

await nevermined.nfts721.burn(tokenId, artist)

Defined in

src/nevermined/api/nfts/NFT721Api.ts:348

buySecondaryMarketNft

▸ buySecondaryMarketNft(from, nftAmount?, agreementIdSeed, conditionsTimeout?, txParams?): Promise\<boolean>

Buys a number of listed NFTs on secondary markets.

Parameters

Name	Type	Description
`from`	`NvmAccount`	The account of the buyer/consumer.
`nftAmount`	`bigint`	The number of assets to buy. 1 by default.
`agreementIdSeed`	`string`	The seed of the initial sales agreement created off-chain.
`conditionsTimeout`	`number`[]	The timeout for the conditions.
`txParams?`	`TxParameters`	Optional transaction parameters

Returns

Promise\<boolean>

true if the buy was successful.

Example

const result = await nevermined.nfts1155.buySecondaryMarketNft(collector, 1n, agreementId)

Throws

NFTError Thrown if there is an error buying the NFT.

Inherited from

NFTsBaseApi.buySecondaryMarketNft

Defined in

src/nevermined/api/nfts/NFTsBaseApi.ts:345

claim

▸ claim(agreementId, nftHolder, nftReceiver, did?, serviceIndex?): Promise\<boolean>

Claims the transfer of a NFT to the Nevermined Node on behalf of the publisher.

Parameters

Name	Type	Description
`agreementId`	`string`	The NFT sales agreement id.
`nftHolder`	`string`	The address of the current owner of the NFT.
`nftReceiver`	`string`	The address where the NFT should be transferred.
`did?`	`string`	The Decentralized Identifier of the asset.
`serviceIndex?`	`any`	The index of the service in the DDO that will be claimed

Returns

Promise\<boolean>

true if the transfer was successful.

Remarks

This is useful when the consumer does not want to wait for the publisher to transfer the NFT once the payment is made. Assuming the publisher delegated transfer permissions to the Node.

One example would be a marketplace where the user wants to get access to the NFT as soon as the payment is made

Example

const receipt = await nevermined.nfts721.claim(agreementId, editor.getId(), subscriber.getId())

Defined in

src/nevermined/api/nfts/NFT721Api.ts:198

claimNFT

▸ claimNFT(agreementId, nftHolder, nftReceiver, numberEditions?, ercType?, did?, serviceIndex?): Promise\<boolean>

Claims the transfer of a NFT to the Nevermined Node on behalf of the publisher.

Parameters

Name	Type	Default value	Description
`agreementId`	`string`	`undefined`	The NFT sales agreement id.
`nftHolder`	`string`	`undefined`	The address of the current owner of the NFT.
`nftReceiver`	`string`	`undefined`	The address where the NFT should be transferred.
`numberEditions`	`bigint`	`undefined`	The number of NFT editions to transfer. If the NFT is ERC-721 it should be 1
`ercType`	`ERCType`	`1155`	The Type of the NFT ERC (1155 or 721).
`did?`	`string`	`undefined`	The DID of the asset.
`serviceIndex?`	`number`	`undefined`	The index of the service in the DDO that will be claimed

Returns

Promise\<boolean>

true if the transfer was successful.

Remarks

This is useful when the consumer does not want to wait for the publisher to transfer the NFT once the payment is made. Assuming the publisher delegated transfer permissions to the Node.

One example would be a marketplace where the user wants to get access to the NFT as soon as the payment is made

Example

const receipt = await nevermined.nfts721.claim(
  agreementId,
  editor.getId(),
  subscriber.getId(),
  nftAmount,
  721,
)

Throws

NFTError if Nevermined is not an operator for this NFT

Inherited from

NFTsBaseApi.claimNFT

Defined in

src/nevermined/api/nfts/NFTsBaseApi.ts:52

create

▸ create(nftAttributes, from, publicationOptions?, txParams?): SubscribablePromise\<CreateProgressStep, DDO>

Creates a new Nevermined asset associated to a NFT (ERC-721).

Parameters

Name	Type	Description
`nftAttributes`	`NFTAttributes`	Attributes describing the NFT (ERC-721) associated to the asset
`from`	`NvmAccount`	The account publishing the asset
`publicationOptions`	`AssetPublicationOptions`	Allows to specify the publication options of the off-chain and the on-chain data.
`txParams?`	`TxParameters`	Optional transaction parameters

Returns

SubscribablePromise\<CreateProgressStep, DDO>

The newly registered DDO.

Example

// We define how the Asset is and the properties
// of the NFT attached to it
const nftAttributes = NFTAttributes.getNFT721Instance({
     metadata,
     price: assetPrice1,
     serviceTypes: ['nft-sales', 'nft-access']
     nftContractAddress: nftContract.address
})

// And register the asset
ddo = await nevermined.nfts721.create(
          nftAttributes,
          artist,
          { metadata: PublishMetadata.IPFS }
)

See

PublishOnChainOptions and PublishMetadataOptions

Defined in

src/nevermined/api/nfts/NFT721Api.ts:102

details

▸ details(did): Promise\<{ blockNumberUpdated: number ; lastChecksum: any ; lastUpdatedBy: any ; mintCap: bigint ; nftContractAddress: any ; nftInitialized: any ; nftSupply: bigint ; nftURI: string ; owner: any ; providers: any ; royalties: number ; royaltyScheme: RoyaltyKind ; url: any }>

Get the details of an NFT

Parameters

Name	Type	Description
`did`	`string`	The Decentralized Identifier of the NFT asset.

Returns

The details of the NFT.

Example

const details = await nevermined.nfts1155.details(ddo.id)

// The `details` object includes the NFT information

assert.equal(details.mintCap, 5)
assert.equal(details.nftSupply, 5)
assert.equal(details.royaltyScheme, RoyaltyKind.Standard)
assert.equal(details.royalties, 100000)
assert.equal(details.owner, artist.getId())

Defined in

src/nevermined/api/nfts/NFT721Api.ts:638

getSubscriptionToken

▸ getSubscriptionToken(did, from): Promise\<SubscriptionToken>

Get a JWT token for an asset associated with a webService

Parameters

Name	Type	Description
`did`	`string`	The did of the asset with a webService resource and an associated subscription
`from`	`NvmAccount`	Account of the user requesting the token

Returns

Promise\<SubscriptionToken>

SubscriptionToken

Example

const response = await nevermined.nfts721.getSubscriptionToken(serviceDDO.id, subscriber)

assert.isDefined(response.accessToken)
assert.isDefined(response.neverminedProxyUri)

Inherited from

NFTsBaseApi.getSubscriptionToken

Defined in

src/nevermined/api/nfts/NFTsBaseApi.ts:490

grantOperatorRole

▸ grantOperatorRole(operatorAddress, from, txParams?): Promise\<any>

Adds a operator (operatorAddress) to the NFT Contract. Granting and revoking operator permissions only can be done by the NFT Contract owner

Parameters

Name	Type	Description
`operatorAddress`	`string`	The address of the account to be added as operator in the NFT Contract
`from`	`NvmAccount`	The account giving operator permissions
`txParams?`	`TxParameters`	Optional transaction parameters.

Returns

Promise\<any>

The TransactionReceipt

Example

await nevermined.nfts721.grantOperatorRole(someoneElse, artist)

Defined in

src/nevermined/api/nfts/NFT721Api.ts:584

isApprovedForAll

▸ isApprovedForAll(operatorAddress, from): Promise\<unknown>

Returns if the operatorAddress is approved

Parameters

Name	Type	Description
`operatorAddress`	`string`	The address to check the permissions
`from`	`string`	The address of the account granting or revoking the permissions via `setApprovalForAll`.

Returns

Promise\<unknown>

Boolean saying if the operatorAddress is approved

Example

await nevermined.nfts721.isApprovedForAll(someoneElse, artist.getId())

Defined in

src/nevermined/api/nfts/NFT721Api.ts:490

isOperator

▸ isOperator(nftContractAddress, operatorAddress, ercType?): Promise\<boolean>

Check if a particular address is the operator of given a NFT address.

Parameters

Name	Type	Default value	Description
`nftContractAddress`	`string`	`undefined`	The DID of the NFT to check
`operatorAddress`	`string`	`undefined`	The address to check if operator status
`ercType`	`ERCType`	`1155`	The erc type of the NFT.

Returns

Promise\<boolean>

operator status of address as a boolean

Inherited from

NFTsBaseApi.isOperator

Defined in

src/nevermined/api/nfts/NFTsBaseApi.ts:118

isOperatorOfDID

▸ isOperatorOfDID(did, address): Promise\<boolean>

It checks if an address is an operator of the NFT associated to the asset

Parameters

Name	Type	Description
`did`	`string`	The Decentralized identifier of the NFT asset.
`address`	`string`	The address to check if operator status

Returns

Promise\<boolean>

true if the address is an operator of the NFT

Overrides

NFTsBaseApi.isOperatorOfDID

Defined in

src/nevermined/api/nfts/NFT721Api.ts:648

list

▸ list(did, list, from, publishMetadata?, txParams?): SubscribablePromise\<UpdateProgressStep, DDO>

Given a DID, updates the metadata associated to the asset allowing to list or unlist it. It also can upload this metadata to a remote decentralized stored depending on the publishMetadata parameter. In a Nevermined environment, when an asset is unlisted, it is not possible to be found and accessed by any user.

Parameters

Name	Type	Default value	Description
`did`	`string`	`undefined`	Decentralized ID representing the unique id of an asset in a Nevermined network.
`list`	`boolean`	`undefined`	Needs the asset to be listed or unlisted
`from`	`NvmAccount`	`undefined`	Account of the user updating the metadata
`publishMetadata`	`PublishMetadataOptions`	`PublishMetadataOptions.OnlyMetadataAPI`	It allows to specify where to store the metadata
`txParams?`	`TxParameters`	`undefined`	Optional transaction parameters

Returns

SubscribablePromise\<UpdateProgressStep, DDO>

DDO The DDO updated

Inherited from

NFTsBaseApi.list

Defined in

src/nevermined/api/RegistryBaseApi.ts:487

listOnSecondaryMarkets

▸ listOnSecondaryMarkets(ddo, assetPrice, nftAmount, nftTransfer, provider, token, from): Promise\<string>

After purchase re-list an NFT to enable secondary market sales.

Parameters

Name	Type	Description
`ddo`	`DDO`	The DDO of the asset.
`assetPrice`	`AssetPrice`	The current setup of asset rewards.
`nftAmount`	`bigint`	The number of NFTs put up for secondary sale.
`nftTransfer`	`boolean`	-
`provider`	`string`	The address that will be the provider of the secondary sale.
`token`	`Token`	-
`from`	`NvmAccount`	The account of the current owner.

Returns

Promise\<string>

the agreementId of the secondary sale.

Example

const agreementId = await nevermined.nfts1155.listOnSecondaryMarkets(
  ddo,
  assetPrice,
  numberNFTs,
  collector.getId(),
  token,
  collector.getId(),
)

Throws

NFTError Thrown if there is an error listing the NFT.

Inherited from

NFTsBaseApi.listOnSecondaryMarkets

Defined in

src/nevermined/api/nfts/NFTsBaseApi.ts:262

mint

▸ mint(did, from, txParams?): Promise\<any>

It mints NFTs associated with an asset.

This function can be called multiple times as long as the minting does not exceed the maximum cap set during creation.

Parameters

Name	Type	Description
`did`	`string`	The Decentralized Identifier of the NFT asset.
`from`	`NvmAccount`	The account of the minter
`txParams?`	`TxParameters`	Optional transaction parameters.

Returns

Promise\<any>

The TransactionReceipt

Example

await nevermined.nfts721.mint(ddo.id, artist)

Defined in

src/nevermined/api/nfts/NFT721Api.ts:324

mintWithURL

▸ mintWithURL(to, did, url, from, txParams?): Promise\<any>

Mint NFTs associated with an asset allowing to specify some metadata

This function can be called multiple times as long as the minting does not exceed the maximum cap set during creation.

Parameters

Name	Type	Description
`to`	`string`	The address receiving the NFT minted
`did`	`string`	The Decentralized Identifier of the NFT asset.
`url`	`string`	The URL with NFT metadata
`from`	`NvmAccount`	The account of the minter
`txParams?`	`TxParameters`	Optional transaction parameters.

Returns

Promise\<any>

The TransactionReceipt

Example

await nevermined.nfts721.mintWithURL(receiverAddress, ddo.id, nftMetadata, artist)

Defined in

src/nevermined/api/nfts/NFT721Api.ts:368

order

▸ order(did, from, serviceReference?, txParams?): SubscribablePromise\<OrderProgressStep, string>

Order a NFT-721.

Parameters

Name	Type	Default value	Description
`did`	`string`	`undefined`	The Decentralized Identifier of the NFT asset.
`from`	`NvmAccount`	`undefined`	The account of the NFT buyer.
`serviceReference`	`number` \| `ServiceType`	`'nft-sales'`	The reference to identify wich service within the DDO to order
`txParams?`	`TxParameters`	`undefined`	Optional transaction parameters.

Returns

SubscribablePromise\<OrderProgressStep, string>

The agreement ID.

Remarks

This will lock the funds of the consumer in escrow pending the transfer of the NFTs from the publisher.

Example

const agreementId = await nevermined.nfts721.order(ddo.id, collector)

Defined in

src/nevermined/api/nfts/NFT721Api.ts:139

orderAsset

▸ orderAsset(did, serviceReference, from, txParams?): SubscribablePromise\<OrderProgressStep, string>

Start the purchase/order of an asset's service. Starts by signing the service agreement then sends the request to the publisher via the service endpoint (Node http service).

Parameters

Name	Type	Description
`did`	`string`	Decentralized ID.
`serviceReference`	`number` \| `ServiceType`	Service.
`from`	`NvmAccount`	Consumer account.
`txParams?`	`TxParameters`	Transaction parameters

Returns

SubscribablePromise\<OrderProgressStep, string>

The agreement ID.

Inherited from

NFTsBaseApi.orderAsset

Defined in

src/nevermined/api/RegistryBaseApi.ts:590

ownerOf

▸ ownerOf(did): Promise\<string>

Gets the contract owner

Parameters

Name	Type
`did`	`string`

Returns

Promise\<string>

Address of the contract owner

Example

const nftContractOwner = new NvmAccount(await nevermined.nfts721.ownerOf())

Defined in

src/nevermined/api/nfts/NFT721Api.ts:417

ownerOfAsset

▸ ownerOfAsset(did): Promise\<string>

Given a DID it gets the owner of the NFT if that DID is used as tokenId

Parameters

Name	Type	Description
`did`	`string`	The Decentralized identifier of the NFT asset.

Returns

Promise\<string>

The address of the NFT owner.

Example

const owner = await nevermined.nfts721.ownerOfAsset(ddo.id, nftTokenAddress)

Defined in

src/nevermined/api/nfts/NFT721Api.ts:451

ownerOfAssetByAgreement

▸ ownerOfAssetByAgreement(did, agreementId): Promise\<string>

Given a DID and an agreement id it gets the owner of the NFT

Parameters

Name	Type	Description
`did`	`string`	The Decentralized identifier of the NFT asset.
`agreementId`	`string`	The NFT sales agreement id.

Returns

Promise\<string>

The address of the NFT owner.

Example

const owner = await nevermined.nfts721.ownerOfAssetByAgreement(ddo.id, agreementId)

Defined in

src/nevermined/api/nfts/NFT721Api.ts:468

ownerOfTokenId

▸ ownerOfTokenId(tokenId): Promise\<string>

Given some information, it gets the public address of the asset owner

Parameters

Name	Type	Description
`tokenId`	`string`	The token id

Returns

Promise\<string>

The address of the NFT owner.

Example

const owner = await nevermined.nfts721.ownerOfTokenId(tokenId)

Defined in

src/nevermined/api/nfts/NFT721Api.ts:434

registerNeverminedAsset

▸ registerNeverminedAsset(assetAttributes, from, publicationOptions, nftAttributes?, txParams?): SubscribablePromise\<CreateProgressStep, DDO>

It registers a new asset in a Nevermined network. This method is protected and not exposed via the Nevermined APIs directly. It must accessed via the assets, compute, and nfts APIs.

Parameters

Name	Type	Description
`assetAttributes`	`AssetAttributes`	Attributes describing the asset
`from`	`NvmAccount`	The account publishing the asset
`publicationOptions`	`AssetPublicationOptions`	Allows to specify the publication options of the off-chain and the on-chain data.
`nftAttributes?`	`NFTAttributes`	Attributes describing the NFT (ERC-721) associated to the asset
`txParams?`	`TxParameters`	Optional transaction parameters

Returns

SubscribablePromise\<CreateProgressStep, DDO>

The metadata of the asset created (DDO)

See

PublishOnChainOptions and PublishMetadataOptions

Inherited from

NFTsBaseApi.registerNeverminedAsset

Defined in

src/nevermined/api/RegistryBaseApi.ts:52

releaseRewards

▸ releaseRewards(agreementId, did, from, serviceReference?, txParams?): Promise\<boolean>

Release the funds from escrow.

Parameters

Name	Type	Default value	Description
`agreementId`	`string`	`undefined`	The NFT sales agreement id.
`did`	`string`	`undefined`	The Decentralized identifier of the NFT asset.
`from`	`NvmAccount`	`undefined`	The current owner of the NFTs.
`serviceReference`	`number` \| `ServiceType`	`'nft-sales'`	The reference to identify wich service within the DDO to release rewards
`txParams?`	`TxParameters`	`undefined`	Optional transaction parameters.

Returns

Promise\<boolean>

true if the funds release was successful.

Remarks

A publisher is able to release the funds put on escrow by the consumer after transferring the NFTs.

Example

const receipt = await nevermined.nfts721.releaseRewards(agreementId, ddo.id, artist)

Throws

NFTError Thrown if there is an error releasing the rewards.

Defined in

src/nevermined/api/nfts/NFT721Api.ts:283

releaseSecondaryMarketRewards

▸ releaseSecondaryMarketRewards(owner, account, agreementIdSeed, txParams?): Promise\<boolean>

Used to release the secondary market NFT & the locked rewards.

Parameters

Name	Type	Description
`owner`	`NvmAccount`	The owner account.
`account`	`NvmAccount`	Account of the user sending the transaction
`agreementIdSeed`	`string`	the seed of the Agreement Id of the underlying service agreement.
`txParams?`	`TxParameters`	Transaction parameters

Returns

Promise\<boolean>

true if the transaction was successful.

Example

// TODO

Throws

NFTError Thrown if there is an error releasing the rewards.

Defined in

src/nevermined/api/nfts/NFT721Api.ts:529

resolveAsset

▸ resolveAsset(did, policy?): Promise\<DDO>

Given an asset DID it returns the metadata of that asset represented by a DDO object. Depending of the resolution policy it prioritize fetching that Metadata from the Marketplace API or Immutable urls (like IPFS).

Parameters

Name	Type	Default value	Description
`did`	`string`	`undefined`	Decentralized ID.
`policy`	`DIDResolvePolicy`	`DIDResolvePolicy.MetadataAPIFirst`	It specifies the resolve policy to apply. It allows to select that priorities during the asset resolution via Metadata API or Immutable URLs (IPFS, Filecoin, etc)

Returns

Promise\<DDO>

DDO

Inherited from

NFTsBaseApi.resolveAsset

Defined in

src/nevermined/api/RegistryBaseApi.ts:326

revokeOperatorRole

▸ revokeOperatorRole(operatorAddress, from, txParams?): Promise\<any>

Revokes a minter (operatorAddress) of the NFT Contract. Granting and revoking minting permissions only can be done by the NFT Contract owner

Parameters

Name	Type	Description
`operatorAddress`	`string`	The address of the account to be revoked as operator in the NFT Contract
`from`	`NvmAccount`	The account revoking operator permissions
`txParams?`	`TxParameters`	Optional transaction parameters.

Returns

Promise\<any>

The TransactionReceipt

Example

await nevermined.nfts721.revokeOperatorRole(someoneElse, artist)

Defined in

src/nevermined/api/nfts/NFT721Api.ts:610

setApprovalForAll

▸ setApprovalForAll(target, approved, from, txParams?): Promise\<any>

Enable or disable NFT permissions for an operator.

Parameters

Name	Type	Description
`target`	`string`	The address that of the operator we want to give transfer rights to.
`approved`	`boolean`	Give or remove transfer rights from the operator.
`from`	`NvmAccount`	The account that wants to give transfer rights to the operator.
`txParams?`	`TxParameters`	Optional transaction parameters.

Returns

Promise\<any>

The TransactionReceipt

Example

await nevermined.nfts721.setApprovalForAll(someoneElse, true, artist)

Defined in

src/nevermined/api/nfts/NFT721Api.ts:396

setInstanceConfig

▸ setInstanceConfig(config): void

Parameters

Name	Type
`config`	`InstantiableConfig`

Returns

void

Inherited from

NFTsBaseApi.setInstanceConfig

Defined in

src/Instantiable.abstract.ts:163

transfer

▸ transfer(agreementId, did, from, serviceReference?, txParams?): Promise\<boolean>

It transfers NFT-721 to the consumer. This method only will work if called by the owner of the asset or a provider.

Parameters

Name	Type	Default value	Description
`agreementId`	`string`	`undefined`	The NFT sales agreement id.
`did`	`string`	`undefined`	The Decentralized identifier of the NFT asset.
`from`	`NvmAccount`	`undefined`	The current owner of the NFTs.
`serviceReference`	`number` \| `ServiceType`	`'nft-sales'`	The reference to identify wich service within the DDO to transfer
`txParams?`	`TxParameters`	`undefined`	Optional transaction parameters.

Returns

Promise\<boolean>

true if the transfer was successful.

Remarks

A publisher/provider will check if the consumer put the funds in escrow and execute the transfer in order to be able to release the rewards.

Example

const receipt = await nevermined.nfts721.transfer(agreementId, ddo.id, artist)

Throws

NFTError Thrown if there is an error transferring the NFT

Defined in

src/nevermined/api/nfts/NFT721Api.ts:232

updateAsset

▸ updateAsset(did, metadata, from, publishMetadataOptions?, txParams?): SubscribablePromise\<UpdateProgressStep, DDO>

Given a DID, updates the metadata associated to the asset. It also can upload this metadata to a remote decentralized stored depending on the publishMetadata parameter.

Parameters

Name	Type	Default value	Description
`did`	`string`	`undefined`	Decentralized ID representing the unique id of an asset in a Nevermined network.
`metadata`	`MetaData`	`undefined`	Metadata describing the asset
`from`	`NvmAccount`	`undefined`	Account of the user updating the metadata
`publishMetadataOptions`	`PublishMetadataOptions`	`PublishMetadataOptions.OnlyMetadataAPI`	It allows to specify where to store the metadata
`txParams?`	`TxParameters`	`undefined`	Optional transaction parameters

Returns

SubscribablePromise\<UpdateProgressStep, DDO>

DDO The DDO updated

Inherited from

NFTsBaseApi.updateAsset

Defined in

src/nevermined/api/RegistryBaseApi.ts:369

getInstance

▸ getInstance(config, nftContractAddress): Promise\<NFT721Api>

Create a new Nevermined NFTs (ERC-721) instance allowing to interact with that kind of NFTs.

Parameters

Name	Type	Description
`config`	`InstantiableConfig`	The Nevermined config
`nftContractAddress`	`string`	If the Nft721 Contract is deployed in an address it will connect to that contract

Returns

Promise\<NFT721Api>

The NFTs 721 API instance NFT721Api.

Example

nfts721 = await Nft721Api.getInstance(instanceConfig, nftContractAddress)

Overrides

NFTsBaseApi.getInstance

Defined in

src/nevermined/api/nfts/NFT721Api.ts:44

getNFTContractAddress

▸ getNFTContractAddress(ddo, serviceReference?): any

Gets the NFT contract address associated with a Nevermined asset from the DDO.

Parameters

Name	Type	Default value	Description
`ddo`	`DDO`	`undefined`	The DDO of the asset.
`serviceReference`	`number` \| `ServiceType`	`'nft-access'`	The service type to look for the contract address

Returns

any

The NFT contract address.

Example

const nftContractAddress = NFT1155Api.getNFTContractAddress(ddo)

Inherited from

NFTsBaseApi.getNFTContractAddress

Defined in

src/nevermined/api/nfts/NFTsBaseApi.ts:221

getServicePlugin

▸ getServicePlugin(config): Object

Initializes the default Nevermined service plugins and return that instance

Parameters

Name	Type	Description
`config`	`InstantiableConfig`	Nevermined config

Returns

Object

The Nevermined Service Plugin instance

Name	Type
`access`	`AccessService`
`compute`	`EscrowComputeExecutionTemplate`
`nft-access`	`NFTAccessService`
`nft-sales`	`NFTSalesService`

Inherited from

NFTsBaseApi.getServicePlugin

Defined in

src/nevermined/api/RegistryBaseApi.ts:645

setInstanceConfig

▸ setInstanceConfig\<T>(instance, instantiableConfig): void

Type parameters

Name	Type
`T`	extends `Instantiable`

Parameters

Name	Type
`instance`	`T`
`instantiableConfig`	`InstantiableConfig`

Returns

void

Inherited from

NFTsBaseApi.setInstanceConfig

Defined in

src/Instantiable.abstract.ts:154

Class: NFT721Api

Hierarchy​

Table of contents​

Constructors​

Properties​

Accessors​

Methods​

Constructors​

constructor​

Returns​

Inherited from​

Properties​

nftContract​

Defined in​

servicePlugin​

Index signature​

Inherited from​

Defined in​

Accessors​

address​

Returns​

Defined in​

artifactsFolder​

Returns​

Inherited from​

Defined in​

circuitsFolder​

Returns​

Inherited from​

Defined in​

client​

Returns​

Inherited from​

Defined in​

config​

Returns​

Inherited from​

Defined in​

getContract​

Returns​

Defined in​

instanceConfig​

Returns​

Inherited from​

Defined in​

instantiableConfig​

Returns​

Inherited from​

Defined in​

logger​

Returns​

Inherited from​

Defined in​

nevermined​

Returns​

Inherited from​

Defined in​

publicClient​

Returns​

Inherited from​

Defined in​

walletClient​

Returns​

Inherited from​

Defined in​

Methods​

_details​

Parameters​

Returns​

Inherited from​

Defined in​

access​

Parameters​

Returns​

Inherited from​

Defined in​

addRating​

Parameters​

Returns​

Inherited from​

Hierarchy

Table of contents

Constructors

Properties

Accessors

Methods

Constructors

constructor

Returns

Inherited from

Properties

nftContract

Defined in

servicePlugin

Index signature

Inherited from

Defined in

Accessors

address

Returns

Defined in

artifactsFolder

Returns

Inherited from

Defined in

circuitsFolder

Returns

Inherited from

Defined in

client

Returns

Inherited from

Defined in

config

Returns

Inherited from

Defined in

getContract

Returns

Defined in

instanceConfig

Returns

Inherited from

Defined in

instantiableConfig

Returns

Inherited from

Defined in

logger

Returns

Inherited from

Defined in

nevermined

Returns

Inherited from

Defined in

publicClient

Returns

Inherited from

Defined in

walletClient

Returns

Inherited from

Defined in

Methods

_details

Parameters

Returns

Inherited from

Defined in

access

Parameters

Returns

Inherited from

Defined in

addRating

Parameters

Returns

Inherited from

Defined in