508 lines
17 KiB
JavaScript
508 lines
17 KiB
JavaScript
(function (EXPORTS) {
|
|
"use strict";
|
|
const ltcBlockchainAPI = EXPORTS;
|
|
|
|
const DEFAULT = {
|
|
fee: 0.001,
|
|
};
|
|
|
|
//Get balance for the given Address
|
|
ltcBlockchainAPI.getBalance = function (addr) {
|
|
return new Promise((resolve, reject) => {
|
|
fetch(
|
|
`https://go.getblock.io/cfa5c9eb49c944a7aa4856e4e9a516a2/api/address/${addr}`
|
|
)
|
|
.then((response) => {
|
|
if (!response.ok)
|
|
throw new Error(`HTTP error! Status: ${response.status}`);
|
|
return response.json();
|
|
})
|
|
.then((data) => {
|
|
console.log("Balance data:", data);
|
|
if (data && typeof data.balance !== "undefined")
|
|
resolve(parseFloat(data.balance));
|
|
else reject("Balance not found in response");
|
|
})
|
|
.catch((error) => reject(error));
|
|
});
|
|
};
|
|
|
|
// Helper function to get UTXOs for an address
|
|
const getUTXOs = async (addr) => {
|
|
const url = `https://go.getblock.io/cfa5c9eb49c944a7aa4856e4e9a516a2/api/address/${addr}?details=txs`;
|
|
const res = await fetch(url);
|
|
const data = await res.json();
|
|
if (!data.txs) throw new Error("No transactions found for address");
|
|
|
|
const utxos = [];
|
|
data.txs.forEach((tx) => {
|
|
tx.vout.forEach((vout) => {
|
|
const addresses =
|
|
vout.addresses ||
|
|
(vout.scriptPubKey ? vout.scriptPubKey.addresses : []);
|
|
if (
|
|
!vout.spent &&
|
|
vout.scriptPubKey &&
|
|
vout.scriptPubKey.hex &&
|
|
addresses &&
|
|
addresses.some((a) => a.toLowerCase() === addr.toLowerCase())
|
|
) {
|
|
console.log("Found UTXO:", {
|
|
txid: tx.txid,
|
|
vout: vout.n,
|
|
value: parseFloat(vout.value),
|
|
});
|
|
|
|
utxos.push({
|
|
txid: tx.txid,
|
|
vout: vout.n,
|
|
value: parseFloat(vout.value),
|
|
scriptPubKey: vout.scriptPubKey.hex,
|
|
});
|
|
}
|
|
});
|
|
});
|
|
return utxos;
|
|
};
|
|
|
|
function toLTC(val) {
|
|
if (typeof val === "string" && val.includes("LTC")) {
|
|
return parseFloat(val.replace("LTC", "").trim());
|
|
}
|
|
|
|
const num = parseFloat(val || "0");
|
|
|
|
return isNaN(num) ? 0 : num;
|
|
}
|
|
|
|
/**
|
|
* Get transaction history for a Litecoin address
|
|
* @param {string} address - The Litecoin address to check
|
|
* @param {Object} options - Optional parameters
|
|
* @param {number} options.limit - Number of transactions to retrieve (default: 10)
|
|
* @param {number} options.offset - Offset for pagination
|
|
* @returns {Promise} Promise object that resolves with transaction list
|
|
*/
|
|
ltcBlockchainAPI.getLtcTransactions = function (address, options = {}) {
|
|
return new Promise((resolve, reject) => {
|
|
console.log(`Fetching transaction history for: ${address}`);
|
|
fetch(
|
|
`https://go.getblock.io/cfa5c9eb49c944a7aa4856e4e9a516a2/api/address/${address}?details=txs`
|
|
)
|
|
.then((response) => {
|
|
if (!response.ok) {
|
|
if (response.status === 429) {
|
|
throw new Error(
|
|
"API rate limit exceeded. Please try again later."
|
|
);
|
|
}
|
|
throw new Error(`HTTP error! Status: ${response.status}`);
|
|
}
|
|
return response.json();
|
|
})
|
|
.then(async (data) => {
|
|
console.log("Raw API response data:", data);
|
|
const txs = data.txs || [];
|
|
const txids = txs.map((tx) => tx.txid) || [];
|
|
console.log(
|
|
`Found ${txids.length} transactions for address ${address}`
|
|
);
|
|
const limit = options.limit || 10;
|
|
const offset = options.offset || 0;
|
|
|
|
const maxTxToProcess = Math.min(10, limit);
|
|
const txsToProcess = txs.slice(offset, offset + maxTxToProcess);
|
|
|
|
if (txsToProcess.length === 0) {
|
|
console.log("No transactions to process based on offset/limit");
|
|
resolve({
|
|
transactions: [],
|
|
total: txs.length,
|
|
offset: offset,
|
|
limit: limit,
|
|
});
|
|
return;
|
|
}
|
|
|
|
console.log(`Processing ${txsToProcess.length} transactions`);
|
|
|
|
const transactions = txsToProcess;
|
|
console.log("Transactions to process:", transactions);
|
|
|
|
try {
|
|
const processedTransactions = transactions.map((tx) => {
|
|
const inputs = tx.vin || [];
|
|
const outputs = tx.vout || [];
|
|
|
|
// Check if address is sender (in vin)
|
|
const isSender = inputs.some((i) =>
|
|
i.addresses?.includes(address)
|
|
);
|
|
|
|
// Check if address is receiver (in vout)
|
|
const isReceiver = outputs.some(
|
|
(o) =>
|
|
(o.addresses && o.addresses.includes(address)) ||
|
|
(o.scriptPubKey?.addresses &&
|
|
o.scriptPubKey.addresses.includes(address))
|
|
);
|
|
|
|
let type = "unknown";
|
|
let value = 0;
|
|
let fromAddresses = [];
|
|
let toAddresses = [];
|
|
|
|
// Extract sender addresses (from)
|
|
inputs.forEach((input) => {
|
|
if (input.addresses && input.addresses.length > 0) {
|
|
input.addresses.forEach((addr) => {
|
|
if (!fromAddresses.includes(addr)) {
|
|
fromAddresses.push(addr);
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
// Extract recipient addresses (to)
|
|
outputs.forEach((output) => {
|
|
const outAddresses =
|
|
output.addresses ||
|
|
(output.scriptPubKey ? output.scriptPubKey.addresses : []);
|
|
|
|
if (outAddresses && outAddresses.length > 0) {
|
|
outAddresses.forEach((addr) => {
|
|
if (!toAddresses.includes(addr)) {
|
|
toAddresses.push(addr);
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
if (isSender && isReceiver) {
|
|
type = "self";
|
|
|
|
const totalInput = inputs
|
|
.filter((i) => i.addresses?.includes(address))
|
|
.reduce((sum, i) => sum + toLTC(i.value), 0);
|
|
|
|
const totalOutput = outputs
|
|
.filter(
|
|
(o) =>
|
|
(o.addresses && o.addresses.includes(address)) ||
|
|
(o.scriptPubKey?.addresses &&
|
|
o.scriptPubKey.addresses.includes(address))
|
|
)
|
|
.reduce((sum, o) => sum + toLTC(o.value), 0);
|
|
|
|
value = totalOutput - totalInput;
|
|
} else if (isSender) {
|
|
type = "sent";
|
|
|
|
const totalInput = inputs
|
|
.filter((i) => i.addresses?.includes(address))
|
|
.reduce((sum, i) => sum + toLTC(i.value), 0);
|
|
|
|
const changeBack = outputs
|
|
.filter(
|
|
(o) =>
|
|
(o.addresses && o.addresses.includes(address)) ||
|
|
(o.scriptPubKey?.addresses &&
|
|
o.scriptPubKey.addresses.includes(address))
|
|
)
|
|
.reduce((sum, o) => sum + toLTC(o.value), 0);
|
|
|
|
value = -(totalInput - changeBack);
|
|
} else if (isReceiver) {
|
|
type = "received";
|
|
|
|
value = outputs
|
|
.filter(
|
|
(o) =>
|
|
(o.addresses && o.addresses.includes(address)) ||
|
|
(o.scriptPubKey?.addresses &&
|
|
o.scriptPubKey.addresses.includes(address))
|
|
)
|
|
.reduce((sum, o) => sum + toLTC(o.value), 0);
|
|
}
|
|
|
|
console.log(`Transaction ${tx.txid} time data:`, {
|
|
blockTime: tx.blocktime,
|
|
blockheight: tx.blockheight,
|
|
time: tx.time,
|
|
});
|
|
|
|
const timestamp =
|
|
tx.time ||
|
|
tx.blockTime ||
|
|
(tx.confirmations
|
|
? Math.floor(Date.now() / 1000) - tx.confirmations * 600
|
|
: Math.floor(Date.now() / 1000));
|
|
|
|
return {
|
|
txid: tx.txid,
|
|
type,
|
|
value: value.toFixed(8),
|
|
time: timestamp,
|
|
blockHeight: tx.blockheight,
|
|
formattedTime: new Date(timestamp * 1000).toLocaleString(),
|
|
confirmations: tx.confirmations || 0,
|
|
rawTx: tx.hex,
|
|
fromAddresses: fromAddresses,
|
|
toAddresses: toAddresses,
|
|
};
|
|
});
|
|
|
|
if (processedTransactions.length > 0) {
|
|
console.log(
|
|
"Sample transaction processed:",
|
|
processedTransactions[0]
|
|
);
|
|
|
|
console.log("Raw transaction data:", transactions[0]);
|
|
} else {
|
|
console.log("No transactions were processed successfully");
|
|
console.log("Original txids found:", txids);
|
|
}
|
|
resolve({
|
|
transactions: processedTransactions,
|
|
total: txids.length,
|
|
offset: offset,
|
|
limit: limit,
|
|
});
|
|
} catch (error) {
|
|
console.error("Error processing transactions:", error);
|
|
reject(error);
|
|
}
|
|
})
|
|
.catch((error) => {
|
|
console.error("API Error:", error);
|
|
reject(error);
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Send Litecoin transaction using direct RPC calls to GetBlock.io
|
|
* This method implements the full RPC workflow: createrawtransaction -> signrawtransaction -> sendrawtransaction
|
|
* @param {string} senderAddr - Sender's Litecoin address
|
|
* @param {string} receiverAddr - Receiver's Litecoin address
|
|
* @param {number} sendAmt - Amount to send in LTC
|
|
* @param {string} privKey - Private key of the sender
|
|
* @returns {Promise} Promise that resolves with the transaction ID
|
|
*/
|
|
ltcBlockchainAPI.sendLitecoinRPC = function (
|
|
senderAddr,
|
|
receiverAddr,
|
|
sendAmt,
|
|
privKey
|
|
) {
|
|
return new Promise((resolve, reject) => {
|
|
if (!ltcCrypto.validateLtcID(senderAddr, true))
|
|
return reject(`Invalid sender address: ${senderAddr}`);
|
|
if (!ltcCrypto.validateLtcID(receiverAddr))
|
|
return reject(`Invalid receiver address: ${receiverAddr}`);
|
|
if (typeof sendAmt !== "number" || sendAmt <= 0)
|
|
return reject(`Invalid send amount: ${sendAmt}`);
|
|
if (privKey.length < 1 || !ltcCrypto.verifyPrivKey(privKey, senderAddr))
|
|
return reject("Invalid Private key!");
|
|
|
|
const fee = DEFAULT.fee;
|
|
const apiToken = "31ea37c3a0c44b368e879007af7a64c8";
|
|
const rpcEndpoint = `https://go.getblock.io/${apiToken}/`;
|
|
|
|
async function rpc(method, params = []) {
|
|
const res = await fetch(rpcEndpoint, {
|
|
method: "POST",
|
|
headers: { "Content-Type": "application/json" },
|
|
body: JSON.stringify({ jsonrpc: "2.0", id: "1", method, params }),
|
|
});
|
|
const text = await res.text();
|
|
try {
|
|
const data = JSON.parse(text);
|
|
if (data.error) throw new Error(JSON.stringify(data.error));
|
|
return data.result;
|
|
} catch (err) {
|
|
console.error("Raw RPC response:\n", text);
|
|
throw new Error("Failed to parse JSON-RPC response");
|
|
}
|
|
}
|
|
|
|
// Get UTXOs for the address
|
|
getUTXOs(senderAddr)
|
|
.then(async (utxos) => {
|
|
if (utxos.length === 0) return reject("No valid UTXOs found");
|
|
console.log("Found UTXOs:", utxos);
|
|
|
|
const utxoTotal = utxos.reduce((sum, utxo) => sum + utxo.value, 0);
|
|
console.log("Total UTXO value:", utxoTotal);
|
|
|
|
if (utxoTotal < sendAmt + fee)
|
|
return reject(
|
|
`Insufficient funds: ${utxoTotal} < ${sendAmt + fee}`
|
|
);
|
|
|
|
const inputs = utxos.map((utxo) => ({
|
|
txid: utxo.txid,
|
|
vout: utxo.vout,
|
|
}));
|
|
|
|
console.log("inputs:", inputs);
|
|
|
|
// Calculate change amount
|
|
const change = utxoTotal - sendAmt - fee;
|
|
|
|
const outputs = {
|
|
[senderAddr]: Number(change.toFixed(8)),
|
|
[receiverAddr]: Number(sendAmt.toFixed(8)),
|
|
};
|
|
console.log("outputs:", outputs);
|
|
|
|
try {
|
|
// Create raw transaction
|
|
console.log("Creating raw transaction...");
|
|
const rawTx = await rpc("createrawtransaction", [inputs, outputs]);
|
|
console.log("Raw transaction hex:", rawTx);
|
|
// Sign raw transaction
|
|
console.log("Signing transaction...");
|
|
const signedTx = await rpc("signrawtransaction", [
|
|
rawTx,
|
|
[
|
|
{
|
|
txid: utxos[0].txid,
|
|
vout: utxos[0].vout,
|
|
scriptPubKey: utxos[0].scriptPubKey,
|
|
amount: utxos[0].value.toFixed(8),
|
|
},
|
|
],
|
|
[privKey],
|
|
]);
|
|
|
|
if (!signedTx.complete) {
|
|
return reject(
|
|
`Failed to sign transaction: ${JSON.stringify(signedTx.errors)}`
|
|
);
|
|
}
|
|
console.log("Signed transaction hex:", signedTx.hex);
|
|
|
|
// Send raw transaction
|
|
console.log("Broadcasting transaction...");
|
|
const txid = await rpc("sendrawtransaction", [signedTx.hex]);
|
|
|
|
resolve(txid);
|
|
} catch (error) {
|
|
console.error("RPC error:", error);
|
|
reject(error);
|
|
}
|
|
})
|
|
.catch((error) => reject(error));
|
|
});
|
|
};
|
|
/**
|
|
* Get transaction details by transaction ID
|
|
* @param {string} txid - The transaction ID to look up
|
|
* @returns {Promise} Promise object that resolves with transaction details
|
|
*/
|
|
ltcBlockchainAPI.getTransactionDetails = function (txid) {
|
|
return new Promise((resolve, reject) => {
|
|
if (!txid || typeof txid !== "string" || txid.length !== 64) {
|
|
reject(new Error("Invalid transaction ID format"));
|
|
return;
|
|
}
|
|
|
|
console.log(`Fetching transaction details for txid: ${txid}`);
|
|
|
|
fetch(
|
|
`https://go.getblock.io/cfa5c9eb49c944a7aa4856e4e9a516a2/api/tx/${txid}`
|
|
)
|
|
.then((response) => {
|
|
if (!response.ok) {
|
|
if (response.status === 404) {
|
|
throw new Error("Transaction not found");
|
|
} else if (response.status === 429) {
|
|
throw new Error(
|
|
"API rate limit exceeded. Please try again later."
|
|
);
|
|
}
|
|
throw new Error(`HTTP error! Status: ${response.status}`);
|
|
}
|
|
return response.json();
|
|
})
|
|
.then((data) => {
|
|
console.log("Transaction details data:", data);
|
|
|
|
if (!data || !data.txid) {
|
|
throw new Error("Invalid transaction data returned");
|
|
}
|
|
|
|
const processedData = {
|
|
txid: data.txid,
|
|
blockHeight: data.blockheight,
|
|
blockHash: data.blockhash,
|
|
blockTime: data.blocktime
|
|
? new Date(data.blocktime * 1000).toLocaleString()
|
|
: "Pending",
|
|
confirmations: data.confirmations || 0,
|
|
fees: data.fees,
|
|
size: data.hex.length / 2, // Size in bytes
|
|
inputsCount: data.vin ? data.vin.length : 0,
|
|
outputsCount: data.vout ? data.vout.length : 0,
|
|
totalInput: 0,
|
|
totalOutput: 0,
|
|
inputs: [],
|
|
outputs: [],
|
|
};
|
|
|
|
// Process inputs
|
|
if (data.vin && Array.isArray(data.vin)) {
|
|
data.vin.forEach((input) => {
|
|
const inputValue = parseFloat(input.value || 0);
|
|
processedData.totalInput += inputValue;
|
|
|
|
const inputData = {
|
|
txid: input.txid,
|
|
vout: input.vout,
|
|
addresses: input.addresses || [],
|
|
value: inputValue,
|
|
};
|
|
|
|
processedData.inputs.push(inputData);
|
|
});
|
|
}
|
|
|
|
// Process outputs
|
|
if (data.vout && Array.isArray(data.vout)) {
|
|
data.vout.forEach((output) => {
|
|
const outputValue = parseFloat(output.value || 0);
|
|
processedData.totalOutput += outputValue;
|
|
|
|
const addresses =
|
|
output.scriptPubKey && output.scriptPubKey.addresses
|
|
? output.scriptPubKey.addresses
|
|
: [];
|
|
|
|
const outputData = {
|
|
n: output.n,
|
|
addresses: addresses,
|
|
value: outputValue,
|
|
spent: output.spent || false,
|
|
scriptPubKey: output.scriptPubKey
|
|
? output.scriptPubKey.hex
|
|
: "",
|
|
};
|
|
|
|
processedData.outputs.push(outputData);
|
|
});
|
|
}
|
|
|
|
resolve(processedData);
|
|
})
|
|
.catch((error) => {
|
|
console.error("Error fetching transaction details:", error);
|
|
reject(error);
|
|
});
|
|
});
|
|
};
|
|
})(
|
|
"object" === typeof module ? module.exports : (window.ltcBlockchainAPI = {})
|
|
);
|