EthereumTBTCToken.md

Class: EthereumTBTCToken

Implementation of the Ethereum TBTC v2 token handle.

See

for reference.

Hierarchy

• EthersContractHandle<TBTCTypechain>

  ↳ EthereumTBTCToken

Implements

• TBTCToken

Table of contents

Constructors

• constructor

Properties

• _deployedAtBlockNumber
• _instance
• _totalRetryAttempts

Methods

• buildBridgeRequestRedemptionData
• buildRequestRedemptionData
• getAddress
• getChainIdentifier
• getEvents
• requestRedemption
• totalSupply

Constructors

constructor

• new EthereumTBTCToken(config, chainId?): EthereumTBTCToken

Parameters

Name	Type	Default value
config	EthereumContractConfig	undefined
chainId	Ethereum	Chains.Ethereum.Local

Returns

EthereumTBTCToken

Overrides

EthersContractHandle&lt;TBTCTypechain&gt;.constructor

Defined in

src/lib/ethereum/tbtc-token.ts:26

Properties

_deployedAtBlockNumber

• Protected Readonly _deployedAtBlockNumber: number

Number of a block within which the contract was deployed. Value is read from the contract deployment artifact. It can be overwritten by setting a EthersContractConfig.deployedAtBlockNumber property.

Inherited from

EthersContractHandle._deployedAtBlockNumber

Defined in

src/lib/ethereum/adapter.ts:80

---

_instance

• Protected Readonly _instance: TBTC

Ethers instance of the deployed contract.

Inherited from

EthersContractHandle._instance

Defined in

src/lib/ethereum/adapter.ts:74

---

_totalRetryAttempts

• Protected Readonly _totalRetryAttempts: number

Number of retries for ethereum requests.

Inherited from

EthersContractHandle._totalRetryAttempts

Defined in

src/lib/ethereum/adapter.ts:84

Methods

buildBridgeRequestRedemptionData

▸ buildBridgeRequestRedemptionData(walletPublicKey, mainUtxo, redeemerOutputScript): Object

Parameters

Name	Type
walletPublicKey	Hex
mainUtxo	BitcoinUtxo
redeemerOutputScript	Hex

Returns

Object

Name	Type
mainUtxo	{ txHash: string ; txOutputIndex: number = mainUtxo.outputIndex; txOutputValue: BigNumber = mainUtxo.value }
mainUtxo.txHash	string
mainUtxo.txOutputIndex	number
mainUtxo.txOutputValue	BigNumber
prefixedRawRedeemerOutputScript	string
walletPublicKeyHash	string

Defined in

src/lib/ethereum/tbtc-token.ts:139

---

buildRequestRedemptionData

▸ buildRequestRedemptionData(redeemer, walletPublicKey, mainUtxo, redeemerOutputScript): Hex

Parameters

Name	Type
redeemer	EthereumAddress
walletPublicKey	Hex
mainUtxo	BitcoinUtxo
redeemerOutputScript	Hex

Returns

Hex

See

Implementation of

TBTCToken.buildRequestRedemptionData

Defined in

src/lib/ethereum/tbtc-token.ts:108

---

getAddress

▸ getAddress(): EthereumAddress

Get address of the contract instance.

Returns

EthereumAddress

Address of this contract instance.

Inherited from

EthersContractHandle.getAddress

Defined in

src/lib/ethereum/adapter.ts:112

---

getChainIdentifier

▸ getChainIdentifier(): ChainIdentifier

Returns

ChainIdentifier

See

Implementation of

TBTCToken.getChainIdentifier

Defined in

src/lib/ethereum/tbtc-token.ts:53

---

getEvents

▸ getEvents(eventName, options?, ...filterArgs): Promise<Event[]>

Get events emitted by the Ethereum contract. It starts searching from provided block number. If the GetEvents.Options#fromBlock option is missing it looks for a contract's defined property _deployedAtBlockNumber. If the property is missing starts searching from block 0.

Parameters

Name	Type	Description
eventName	string	Name of the event.
options?	Options	Options for events fetching.
...filterArgs	unknown[]	Arguments for events filtering.

Returns

Promise<Event[]>

Array of found events.

Inherited from

EthersContractHandle.getEvents

Defined in

src/lib/ethereum/adapter.ts:127

---

requestRedemption

▸ requestRedemption(walletPublicKey, mainUtxo, redeemerOutputScript, amount): Promise<Hex>

Parameters

Name	Type
walletPublicKey	Hex
mainUtxo	BitcoinUtxo
redeemerOutputScript	Hex
amount	BigNumber

Returns

Promise<Hex>

See

Implementation of

TBTCToken.requestRedemption

Defined in

src/lib/ethereum/tbtc-token.ts:71

---

totalSupply

▸ totalSupply(blockNumber?): Promise<BigNumber>

Parameters

Name	Type
blockNumber?	number

Returns

Promise<BigNumber>

See

Implementation of

TBTCToken.totalSupply

Defined in

src/lib/ethereum/tbtc-token.ts:61