ripple-lib
Version:
Deprecated - consider migrating to xrpl.js: https://xrpl.org/xrpljs2-migration-guide.html
141 lines • 6.52 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const _ = __importStar(require("lodash"));
const bignumber_js_1 = __importDefault(require("bignumber.js"));
const utils_1 = require("./utils");
const common_1 = require("../common");
const pathfind_1 = __importDefault(require("./parse/pathfind"));
const NotFoundError = common_1.errors.NotFoundError;
const ValidationError = common_1.errors.ValidationError;
function addParams(request, result) {
return _.defaults(Object.assign({}, result, {
source_account: request.source_account,
source_currencies: request.source_currencies
}), { destination_amount: request.destination_amount });
}
function requestPathFind(connection, pathfind) {
const destinationAmount = Object.assign({
value: pathfind.destination.amount.currency === 'XRP' ? common_1.dropsToXrp('-1') : '-1'
}, pathfind.destination.amount);
const request = {
command: 'ripple_path_find',
source_account: pathfind.source.address,
destination_account: pathfind.destination.address,
destination_amount: common_1.toRippledAmount(destinationAmount)
};
if (typeof request.destination_amount === 'object' &&
!request.destination_amount.issuer) {
request.destination_amount.issuer = request.destination_account;
}
if (pathfind.source.currencies && pathfind.source.currencies.length > 0) {
request.source_currencies = pathfind.source.currencies.map((amount) => utils_1.renameCounterpartyToIssuer(amount));
}
if (pathfind.source.amount) {
if (pathfind.destination.amount.value != null) {
throw new ValidationError('Cannot specify both source.amount' +
' and destination.amount.value in getPaths');
}
request.send_max = common_1.toRippledAmount(pathfind.source.amount);
if (typeof request.send_max !== 'string' && !request.send_max.issuer) {
request.send_max.issuer = pathfind.source.address;
}
}
return connection.request(request).then((paths) => addParams(request, paths));
}
function addDirectXrpPath(paths, xrpBalance) {
const destinationAmount = paths.destination_amount;
if (new bignumber_js_1.default(xrpBalance).isGreaterThanOrEqualTo(destinationAmount)) {
paths.alternatives.unshift({
paths_computed: [],
source_amount: paths.destination_amount
});
}
return paths;
}
function isRippledIOUAmount(amount) {
return (typeof amount === 'object' && amount.currency && amount.currency !== 'XRP');
}
function conditionallyAddDirectXRPPath(connection, address, paths) {
if (isRippledIOUAmount(paths.destination_amount) ||
!paths.destination_currencies.includes('XRP')) {
return Promise.resolve(paths);
}
return utils_1.getXRPBalance(connection, address, undefined).then((xrpBalance) => addDirectXrpPath(paths, xrpBalance));
}
function filterSourceFundsLowPaths(pathfind, paths) {
if (pathfind.source.amount &&
pathfind.destination.amount.value == null &&
paths.alternatives) {
paths.alternatives = paths.alternatives.filter((alt) => {
if (!alt.source_amount) {
return false;
}
const pathfindSourceAmountValue = new bignumber_js_1.default(pathfind.source.amount.currency === 'XRP'
? common_1.xrpToDrops(pathfind.source.amount.value)
: pathfind.source.amount.value);
const altSourceAmountValue = new bignumber_js_1.default(typeof alt.source_amount === 'string'
? alt.source_amount
: alt.source_amount.value);
return altSourceAmountValue.eq(pathfindSourceAmountValue);
});
}
return paths;
}
function formatResponse(pathfind, paths) {
if (paths.alternatives && paths.alternatives.length > 0) {
return pathfind_1.default(paths);
}
if (paths.destination_currencies != null &&
!paths.destination_currencies.includes(pathfind.destination.amount.currency)) {
throw new NotFoundError('No paths found. ' +
'The destination_account does not accept ' +
pathfind.destination.amount.currency +
', they only accept: ' +
paths.destination_currencies.join(', '));
}
else if (paths.source_currencies && paths.source_currencies.length > 0) {
throw new NotFoundError('No paths found. Please ensure' +
' that the source_account has sufficient funds to execute' +
' the payment in one of the specified source_currencies. If it does' +
' there may be insufficient liquidity in the network to execute' +
' this payment right now');
}
else {
throw new NotFoundError('No paths found.' +
' Please ensure that the source_account has sufficient funds to' +
' execute the payment. If it does there may be insufficient liquidity' +
' in the network to execute this payment right now');
}
}
function getPaths(pathfind) {
common_1.validate.getPaths({ pathfind });
const address = pathfind.source.address;
return requestPathFind(this.connection, pathfind)
.then((paths) => conditionallyAddDirectXRPPath(this.connection, address, paths))
.then((paths) => filterSourceFundsLowPaths(pathfind, paths))
.then((paths) => formatResponse(pathfind, paths));
}
exports.default = getPaths;
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