TxUtils

scrypt-ts-opcat v1.0.1

---

scrypt-ts-opcat / TxUtils

Class: TxUtils

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:26

Library for parsing and constructing transactions

Onchain

Extends

• SmartContractLib

Constructors

new TxUtils()

new TxUtils(...args): TxUtils

Defined in: packages/scrypt-ts-opcat/src/smart-contract/smartContractLib.ts:32

Parameters

args

...SupportedParamType[]

Returns

TxUtils

Inherited from

SmartContractLib.constructor

Properties

args

args: any[] = []

Defined in: packages/scrypt-ts-opcat/src/smart-contract/smartContractLib.ts:31

Inherited from

SmartContractLib.args

---

artifact

static artifact: Artifact

Defined in: packages/scrypt-ts-opcat/src/smart-contract/smartContractLib.ts:16

Inherited from

SmartContractLib.artifact

---

stateType?

static optional stateType: string

Defined in: packages/scrypt-ts-opcat/src/smart-contract/smartContractLib.ts:17

Inherited from

SmartContractLib.stateType

---

ZERO_SATS

readonly static ZERO_SATS: UInt64 = 0n

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:29

if a output satoshi value is zero

Methods

buildChangeOutput()

static buildChangeOutput(change): ByteString

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:66

Build serialized change output

Parameters

change

TxOut

change output to build

Returns

ByteString

serialized change output in format ByteString

---

buildDataOutput()

static buildDataOutput(scriptHash, satoshis, dataHash): ByteString

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:50

Build serialized tx output

Parameters

scriptHash

ByteString

satoshis

UInt64

serialized satoshis of the output

dataHash

ByteString

Returns

ByteString

serialized tx output in format ByteString

---

buildOpReturnOutput()

static buildOpReturnOutput(data): ByteString

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:95

build OP_RETURN script from data payload

Parameters

data

ByteString

the data payload

Returns

ByteString

a ByteString contains the data payload

---

buildOpreturnScript()

static buildOpreturnScript(data): ByteString

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:134

build OP_FALSE OP_RETURN script from data payload

Parameters

data

ByteString

the data payload

Returns

ByteString

a ByteString contains the data payload

---

buildOutput()

static buildOutput(scriptHash, satoshis): ByteString

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:38

Build serialized tx output

Parameters

scriptHash

ByteString

satoshis

UInt64

serialized satoshis of the output

Returns

ByteString

serialized tx output in format ByteString

---

buildP2PKHOutput()

static buildP2PKHOutput(amount, addr): ByteString

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:124

constructs a P2PKH output from a given PubKeyHash and satoshi amount

Parameters

amount

UInt64

the satoshi amount

addr

Ripemd160

the recipient's public key hash

Returns

ByteString

a ByteString representing the P2PKH output

---

buildP2PKHScript()

static buildP2PKHScript(addr): ByteString

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:106

constructs a P2PKH script from a given PubKeyHash

Parameters

addr

Ripemd160

Returns

ByteString

a ByteString representing the P2PKH script

---

byteStringToSatoshis()

static byteStringToSatoshis(bs): UInt64

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:154

convert a ByteString to a UInt64 number

Parameters

bs

ByteString

the satoshi amount

Returns

UInt64

a UInt64

---

loadArtifact()

static loadArtifact(artifact): typeof SmartContractLib

Defined in: packages/scrypt-ts-opcat/src/smart-contract/smartContractLib.ts:19

Parameters

artifact

Artifact

Returns

typeof SmartContractLib

Inherited from

SmartContractLib.loadArtifact

---

mergeInput()

static mergeInput(txInput): ByteString

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:78

Merge tx input into a ByteString

Parameters

txInput

TxIn

tx input, must be a segwit input

Returns

ByteString

serialized tx input

---

satoshisToByteString()

static satoshisToByteString(n): ByteString

Defined in: packages/scrypt-ts-opcat/src/smart-contract/builtin-libs/txUtils.ts:144

convert a UInt64 number to 8 bytes in little-end order.

Parameters

n

UInt64

the satoshi amount

Returns

ByteString

a ByteString