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web/cashtab/src/hooks/useBCH.js
| Show First 20 Lines • Show All 513 Lines • ▼ Show 20 Lines | const createToken = async (BCH, wallet, feeInSatsPerByte, configObj) => { | ||||
| let transactionBuilder; | let transactionBuilder; | ||||
| // instance of transaction builder | // instance of transaction builder | ||||
| if (process.env.REACT_APP_NETWORK === `mainnet`) | if (process.env.REACT_APP_NETWORK === `mainnet`) | ||||
| transactionBuilder = new BCH.TransactionBuilder(); | transactionBuilder = new BCH.TransactionBuilder(); | ||||
| else transactionBuilder = new BCH.TransactionBuilder('testnet'); | else transactionBuilder = new BCH.TransactionBuilder('testnet'); | ||||
| let originalAmount = new BigNumber(0); | let originalAmount = new BigNumber(0); | ||||
| const tokenOutputDust = new BigNumber( | |||||
| fromSmallestDenomination(currency.dustSats).toString(), | |||||
| ); | |||||
| let txFee = 0; | let txFee = 0; | ||||
| for (let i = 0; i < utxos.length; i++) { | for (let i = 0; i < utxos.length; i++) { | ||||
| const utxo = utxos[i]; | const utxo = utxos[i]; | ||||
| originalAmount = originalAmount.plus(utxo.value); | originalAmount = originalAmount.plus(new BigNumber(utxo.value)); | ||||
| const vout = utxo.vout; | const vout = utxo.vout; | ||||
| const txid = utxo.txid; | const txid = utxo.txid; | ||||
| // add input with txid and index of vout | // add input with txid and index of vout | ||||
| transactionBuilder.addInput(txid, vout); | transactionBuilder.addInput(txid, vout); | ||||
| inputUtxos.push(utxo); | inputUtxos.push(utxo); | ||||
| txFee = calcFee(BCH, inputUtxos, 3, feeInSatsPerByte); | txFee = calcFee(BCH, inputUtxos, 3, feeInSatsPerByte); | ||||
| if (originalAmount.minus(tokenOutputDust).minus(txFee).gte(0)) { | if ( | ||||
| originalAmount | |||||
| .minus(new BigNumber(currency.dustSats)) | |||||
| .minus(new BigNumber(txFee)) | |||||
| .gte(0) | |||||
| ) { | |||||
| break; | break; | ||||
| } | } | ||||
| } | } | ||||
| // amount to send back to the remainder address. | // amount to send back to the remainder address. | ||||
| const remainder = originalAmount | const remainder = originalAmount | ||||
| .minus(tokenOutputDust) | .minus(new BigNumber(currency.dustSats)) | ||||
| .minus(txFee); | .minus(new BigNumber(txFee)); | ||||
| if (remainder.lt(0)) { | if (remainder.lt(0)) { | ||||
| const error = new Error(`Insufficient funds`); | const error = new Error(`Insufficient funds`); | ||||
| error.code = SEND_BCH_ERRORS.INSUFFICIENT_FUNDS; | error.code = SEND_BCH_ERRORS.INSUFFICIENT_FUNDS; | ||||
| throw error; | throw error; | ||||
| } | } | ||||
| // Generate the OP_RETURN entry for an SLP GENESIS transaction. | // Generate the OP_RETURN entry for an SLP GENESIS transaction. | ||||
| const script = BCH.SLP.TokenType1.generateGenesisOpReturn( | const script = BCH.SLP.TokenType1.generateGenesisOpReturn( | ||||
| configObj, | configObj, | ||||
| ); | ); | ||||
| // OP_RETURN needs to be the first output in the transaction. | // OP_RETURN needs to be the first output in the transaction. | ||||
| transactionBuilder.addOutput(script, 0); | transactionBuilder.addOutput(script, 0); | ||||
| // add output w/ address and amount to send | // add output w/ address and amount to send | ||||
| transactionBuilder.addOutput( | transactionBuilder.addOutput(CREATION_ADDR, currency.dustSats); | ||||
| CREATION_ADDR, | |||||
| parseInt(toSmallestDenomination(tokenOutputDust)), | |||||
| ); | |||||
| // Send change to own address | // Send change to own address | ||||
| if (remainder.gte(new BigNumber(currency.dustSats))) { | if (remainder.gte(new BigNumber(currency.dustSats))) { | ||||
| transactionBuilder.addOutput( | transactionBuilder.addOutput( | ||||
| CREATION_ADDR, | CREATION_ADDR, | ||||
| parseInt(remainder), | parseInt(remainder), | ||||
| ); | ); | ||||
| } | } | ||||
| ▲ Show 20 Lines • Show All 434 Lines • Show Last 20 Lines | |||||