redstone-api
Version:
Javascript library for fetching trusted token pricing data from Redstone data ecosystem
275 lines (274 loc) • 12.7 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
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for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
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};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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var __generator = (this && this.__generator) || function (thisArg, body) {
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function verb(n) { return function (v) { return step([n, v]); }; }
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var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.RedstoneQueryExecutable = exports.RedstoneQueryForSeveralSymbols = exports.RedstoneQueryForSingleSymbol = exports.RedstoneQueryForSingleOrSeveralSymbols = exports.RedstoneQuery = void 0;
var api_1 = __importDefault(require("./api"));
var RedstoneQuery = /** @class */ (function () {
function RedstoneQuery(params) {
if (params === void 0) { params = {}; }
this.params = __assign({ symbols: [] }, params);
}
/**
* Sets a token symbol to fetch
* @param symbol - Token symbol string
* @returns query object
*/
RedstoneQuery.prototype.symbol = function (symbol) {
return new RedstoneQueryForSingleSymbol({
symbols: [symbol],
});
};
/**
* Sets token symbols to fetch
* @param symbols - Array of strings (token symbols)
* @returns query object
*/
RedstoneQuery.prototype.symbols = function (symbols) {
return new RedstoneQueryForSeveralSymbols({ symbols: symbols });
};
/**
* Configures query to fetch prices for all supported tokens.
* It doesn't support any params
* @returns query object
*/
RedstoneQuery.prototype.allSymbols = function () {
// return this.getQueryWithUpdatedSymbols<{ [symbol: string]: PriceData }>([]);
return new RedstoneQueryForSeveralSymbols({
symbols: [],
});
};
return RedstoneQuery;
}());
exports.RedstoneQuery = RedstoneQuery;
var RedstoneQueryForSingleOrSeveralSymbols = /** @class */ (function () {
function RedstoneQueryForSingleOrSeveralSymbols(params) {
this.params = params;
}
// TODO: Maybe improve the type later (replace any with more detailed one)
RedstoneQueryForSingleOrSeveralSymbols.prototype.getExecutableQuery = function (update) {
return new RedstoneQueryExecutable(__assign(__assign({}, this.params), update));
};
/**
* Configures query to fetch the latest price/prices
* It doesn't support any params
* @returns query object
*/
RedstoneQueryForSingleOrSeveralSymbols.prototype.latest = function () {
return this.getExecutableQuery({});
};
/**
* Configures query to fetch the price for X hours ago.
* @param hoursCount - Number of hours ago
* @returns query object
*/
RedstoneQueryForSingleOrSeveralSymbols.prototype.hoursAgo = function (hoursCount) {
return this.getExecutableQuery({
date: Date.now() - hoursCount * 3600 * 1000,
});
};
/**
* Configures query to fetch the price for a specific date.
* @param date - Date for the historical price (date | timestamp | string)
* @returns query object
*/
RedstoneQueryForSingleOrSeveralSymbols.prototype.atDate = function (date) {
return this.getExecutableQuery({ date: date });
};
return RedstoneQueryForSingleOrSeveralSymbols;
}());
exports.RedstoneQueryForSingleOrSeveralSymbols = RedstoneQueryForSingleOrSeveralSymbols;
var RedstoneQueryForSingleSymbol = /** @class */ (function (_super) {
__extends(RedstoneQueryForSingleSymbol, _super);
function RedstoneQueryForSingleSymbol(params) {
return _super.call(this, params) || this;
}
/**
* Configures query to fetch the price in a time range. It is important to use fromDate with toDate query methods
* @param date - Start date/time for the time range
*
* @returns query object
*/
RedstoneQueryForSingleSymbol.prototype.fromDate = function (date) {
return new RedstoneQueryForSingleSymbol(__assign(__assign({}, this.params), { startDate: date }));
};
/**
* Configures query to fetch the price in a time range. toDate method should go after the fromDate
* @param date - End date/time for the time range
*
* @returns query object
*/
RedstoneQueryForSingleSymbol.prototype.toDate = function (date) {
if (this.params.startDate === undefined) {
throw new Error("Please specify fromDate before using toDate");
}
return this.getExecutableQuery({ endDate: date });
};
/**
* Configures query to fetch the price for the last few hours
* @param hoursCount - Number of hours in the time range
*
* @returns query object
*/
RedstoneQueryForSingleSymbol.prototype.forLastHours = function (hoursCount) {
var endDate = Date.now();
return this.getExecutableQuery({
endDate: endDate,
startDate: endDate - hoursCount * 3600 * 1000,
interval: 600 * 1000,
});
};
/**
* Configures query to fetch the price for the last few days
* @param daysCount - Number of days in the time range
*
* @returns query object
*/
RedstoneQueryForSingleSymbol.prototype.forLastDays = function (daysCount) {
var endDate = Date.now();
return this.getExecutableQuery({
endDate: endDate,
startDate: endDate - daysCount * 24 * 3600 * 1000,
interval: 3600 * 1000,
});
};
return RedstoneQueryForSingleSymbol;
}(RedstoneQueryForSingleOrSeveralSymbols));
exports.RedstoneQueryForSingleSymbol = RedstoneQueryForSingleSymbol;
var RedstoneQueryForSeveralSymbols = /** @class */ (function (_super) {
__extends(RedstoneQueryForSeveralSymbols, _super);
function RedstoneQueryForSeveralSymbols(params) {
return _super.call(this, params) || this;
}
return RedstoneQueryForSeveralSymbols;
}(RedstoneQueryForSingleOrSeveralSymbols));
exports.RedstoneQueryForSeveralSymbols = RedstoneQueryForSeveralSymbols;
var RedstoneQueryExecutable = /** @class */ (function () {
function RedstoneQueryExecutable(params) {
if (params === void 0) { params = {}; }
this.params = __assign({ symbols: [] }, params);
}
/**
* Executes the query
*
* @returns Promise resolving the query result (result type depends on the query)
*/
RedstoneQueryExecutable.prototype.exec = function (redstoneApiConfig) {
return __awaiter(this, void 0, void 0, function () {
var redstone, symbols, symbolOrSymbols, _a, startDate, endDate, date, interval, diff;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
redstone = new api_1.default(__assign(__assign({}, redstoneApiConfig), { defaultProvider: redstoneApiConfig === null || redstoneApiConfig === void 0 ? void 0 : redstoneApiConfig.provider }));
symbols = this.params.symbols;
if (!(symbols.length > 0)) return [3 /*break*/, 5];
symbolOrSymbols = symbols.length === 1 ? symbols[0] : symbols;
_a = this.params, startDate = _a.startDate, endDate = _a.endDate, date = _a.date, interval = _a.interval;
if (![startDate, endDate, date].every(function (el) { return el === undefined; })) return [3 /*break*/, 2];
return [4 /*yield*/, redstone.getPrice(symbolOrSymbols, this.params)];
case 1:
// Fetch the latest price
return [2 /*return*/, (_b.sent())];
case 2:
// Fetch the historical price
if (startDate !== undefined &&
endDate !== undefined &&
interval === undefined) {
diff = getTimeDiff(startDate, endDate);
if (diff >= 24 * 3600 * 1000) {
this.params.interval = 3600 * 1000;
}
else {
this.params.interval = 1;
}
}
return [4 /*yield*/, redstone.getHistoricalPrice(symbolOrSymbols, this.params)];
case 3: return [2 /*return*/, (_b.sent())];
case 4: return [3 /*break*/, 7];
case 5: return [4 /*yield*/, redstone.getAllPrices(this.params)];
case 6:
// Fetch prices for all tokens
return [2 /*return*/, (_b.sent())];
case 7: return [2 /*return*/];
}
});
});
};
return RedstoneQueryExecutable;
}());
exports.RedstoneQueryExecutable = RedstoneQueryExecutable;
function getTimeDiff(date1, date2) {
var timestamp1 = new Date(date1).getTime();
var timestamp2 = new Date(date2).getTime();
return Math.abs(timestamp2 - timestamp1);
}
/**
* Initializes and returns an empty query.
* It doesn't support any params
* @returns query object
*/
var query = function () { return new RedstoneQuery(); };
exports.default = query;