yahoo-finance2
Version:
JS API for Yahoo Finance
104 lines (103 loc) • 4.2 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (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 () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = quoteCombine;
const validateAndCoerceTypes_js_1 = require("../lib/validateAndCoerceTypes.js");
const quote_js_1 = __importStar(require("../modules/quote.js"));
const DEBOUNCE_TIME = 50;
const slugMap = new Map();
function quoteCombine(query, queryOptionsOverrides = {}, moduleOptions) {
const symbol = query;
if (typeof symbol !== "string")
throw new Error("quoteCombine expects a string query parameter, received: " +
JSON.stringify(symbol, null, 2));
(0, validateAndCoerceTypes_js_1.validateAndCoerceTypebox)({
type: "options",
data: queryOptionsOverrides,
schema: quote_js_1.QuoteOptionsSchema,
options: this._opts.validation,
});
// Make sure we only combine requests with same options
const slug = JSON.stringify(queryOptionsOverrides);
let entry = slugMap.get(slug);
if (!entry) {
entry = {
timeout: null,
queryOptionsOverrides,
symbols: new Map(),
};
slugMap.set(slug, entry);
}
if (entry.timeout)
clearTimeout(entry.timeout);
const thisQuote = quote_js_1.default.bind(this);
return new Promise((resolve, reject) => {
let symbolPromiseCallbacks = entry.symbols.get(symbol);
/* istanbul ignore else */
if (!symbolPromiseCallbacks) {
symbolPromiseCallbacks = [];
entry.symbols.set(symbol, symbolPromiseCallbacks);
}
symbolPromiseCallbacks.push({ resolve, reject });
entry.timeout = setTimeout(() => {
slugMap.delete(slug);
const symbols = Array.from(entry.symbols.keys());
// @ts-ignore
thisQuote(symbols, queryOptionsOverrides, moduleOptions)
.then((results) => {
for (const result of results) {
for (const promise of entry.symbols.get(result.symbol)) {
promise.resolve(result);
promise.resolved = true;
}
}
// Check for symbols we asked for and didn't get back,
// e.g. non-existent symbols (#150)
for (const [_, promises] of entry.symbols) {
for (const promise of promises) {
if (!promise.resolved) {
promise.resolve(undefined);
}
}
}
})
.catch((error) => {
for (const symbolPromiseCallbacks of entry.symbols.values())
for (const promise of symbolPromiseCallbacks)
promise.reject(error);
});
}, DEBOUNCE_TIME);
});
}