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Extract memo for keysend

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ShahanaFarooqui 2026-01-16 22:04:55 -08:00 • committed by Suheb
parent 08326f1383
commit f3f21c5949
2 changed files with 37 additions and 0 deletions
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18
backend/controllers/lnd/invoices.js
View file

@ -6,6 +6,22 @@ let options = null;
const logger = Logger;
const common = Common;
const lndWsClient = LNDWSClient;
const KEYSEND_MESSAGE_TLV_TYPE = '34349334';
const extractKeysendMessage = (invoice) => {
if (invoice.is_keysend && (!invoice.memo || invoice.memo === '') && invoice.htlcs && invoice.htlcs.length > 0) {
for (const htlc of invoice.htlcs) {
if (htlc.custom_records && htlc.custom_records[KEYSEND_MESSAGE_TLV_TYPE]) {
try {
return Buffer.from(htlc.custom_records[KEYSEND_MESSAGE_TLV_TYPE], 'base64').toString('utf8');
}
catch (err) {
return '';
}
}
}
}
return '';
};
export const invoiceLookup = (req, res, next) => {
logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Getting Invoice Information..' });
options = common.getOptions(req);
@ -23,6 +39,7 @@ export const invoiceLookup = (req, res, next) => {
body.r_preimage = body.r_preimage ? Buffer.from(body.r_preimage, 'base64').toString('hex') : '';
body.r_hash = body.r_hash ? Buffer.from(body.r_hash, 'base64').toString('hex') : '';
body.description_hash = body.description_hash ? Buffer.from(body.description_hash, 'base64').toString('hex') : null;
body.memo = extractKeysendMessage(body);
logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Invoice Information Received', data: body });
res.status(200).json(body);
}).catch((errRes) => {
@ -45,6 +62,7 @@ export const listInvoices = (req, res, next) => {
invoice.r_preimage = invoice.r_preimage ? Buffer.from(invoice.r_preimage, 'base64').toString('hex') : '';
invoice.r_hash = invoice.r_hash ? Buffer.from(invoice.r_hash, 'base64').toString('hex') : '';
invoice.description_hash = invoice.description_hash ? Buffer.from(invoice.description_hash, 'base64').toString('hex') : null;
invoice.memo = extractKeysendMessage(invoice) || '';
});
}
logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Sorted Invoices List Received', data: body });

19
server/controllers/lnd/invoices.ts
View file

@ -8,6 +8,23 @@ const logger: LoggerService = Logger;
const common: CommonService = Common;
const lndWsClient: LNDWebSocketClient = LNDWSClient;
const KEYSEND_MESSAGE_TLV_TYPE = '34349334';
const extractKeysendMessage = (invoice) => {
if (invoice.is_keysend && (!invoice.memo || invoice.memo === '') && invoice.htlcs && invoice.htlcs.length > 0) {
for (const htlc of invoice.htlcs) {
if (htlc.custom_records && htlc.custom_records[KEYSEND_MESSAGE_TLV_TYPE]) {
try {
return Buffer.from(htlc.custom_records[KEYSEND_MESSAGE_TLV_TYPE], 'base64').toString('utf8');
} catch (err) {
return '';
}
}
}
}
return '';
};
export const invoiceLookup = (req, res, next) => {
logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Getting Invoice Information..' });
options = common.getOptions(req);
@ -22,6 +39,7 @@ export const invoiceLookup = (req, res, next) => {
body.r_preimage = body.r_preimage ? Buffer.from(body.r_preimage, 'base64').toString('hex') : '';
body.r_hash = body.r_hash ? Buffer.from(body.r_hash, 'base64').toString('hex') : '';
body.description_hash = body.description_hash ? Buffer.from(body.description_hash, 'base64').toString('hex') : null;
body.memo = extractKeysendMessage(body);
logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Invoice Information Received', data: body });
res.status(200).json(body);
}).catch((errRes) => {
@ -43,6 +61,7 @@ export const listInvoices = (req, res, next) => {
invoice.r_preimage = invoice.r_preimage ? Buffer.from(invoice.r_preimage, 'base64').toString('hex') : '';
invoice.r_hash = invoice.r_hash ? Buffer.from(invoice.r_hash, 'base64').toString('hex') : '';
invoice.description_hash = invoice.description_hash ? Buffer.from(invoice.description_hash, 'base64').toString('hex') : null;
invoice.memo = extractKeysendMessage(invoice) || '';
});
}
logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Sorted Invoices List Received', data: body });