Estoy tratando de usar el valor de retorno que obtengo en esta función .then() en mi función de bot de discordia para enviar un mensaje de cualquier precio de las acciones que ingresen. Cuando ejecuto la función en la función discord, dice 'indefinido' pero el precio correcto se registra en la función .then(). ¡Por favor ayuda!
const alpha = require("alphavantage")({ key: "KEY" }); const { Client, Intents } = require("discord.js"); const Discord = require("discord.js"); const client = new Client({ intents: [Intents.FLAGS.GUILDS, Intents.FLAGS.GUILD_MESSAGES], }); const tickers = ["CVE", "SU", "AAPL", "TSLA", "CNQ", "FUBO", "FB"]; const prefix = "."; client.once("ready", () => { console.log("Bot is Ready!"); }); getInput(); function getInput() { client.on("message", (msg) => { if (!msg.content.startsWith(prefix) || msg.author.bot) return; const args = msg.content.slice(prefix.length).trim().split(" "); const command = args.shift().toLowerCase(); if (command === "list") { msg.channel.send(tickers.join(", ")); } else if (command == "add") { tickers.push(args[0]); } else if (command == "price") { console.log(getStockPrices(args[0])); } }); client.login("KEY"); } function getStockPrices(stock) { let prices = []; alpha .experimental("TIME_SERIES_INTRADAY", { symbol: stock, market: "USD", interval: "5min", }) .then((data) => { for (let key in data["Time Series (5min)"]) { let openPrice = data["Time Series (5min)"][key]["1. open"]; prices.push(openPrice); } console.log(prices[0]); return prices[0]; }); }Debe esperar su promesa, o definir then devolución de llamada:
async function getInput() {//async client.on("message", (msg) => { if (!msg.content.startsWith(prefix) || msg.author.bot) return; const args = msg.content.slice(prefix.length).trim().split(" "); const command = args.shift().toLowerCase(); if (command === "list") { msg.channel.send(tickers.join(", ")); } else if (command == "add") { tickers.push(args[0]); } else if (command == "price") { console.log(await getStockPrices(args[0]));//await } }); client.login("KEY"); }O
function getInput() { client.on("message", (msg) => { if (!msg.content.startsWith(prefix) || msg.author.bot) return; const args = msg.content.slice(prefix.length).trim().split(" "); const command = args.shift().toLowerCase(); if (command === "list") { msg.channel.send(tickers.join(", ")); } else if (command == "add") { tickers.push(args[0]); } else if (command == "price") { getStockPrices(args[0]).then(console.log); //then } }); client.login("KEY"); }Con promesas, el resultado es asíncrono. Y debe, de hecho, devolver su promesa en su otra función:
function getStockPrices(stock) { let prices = []; return alpha //there, return your promise .experimental("TIME_SERIES_INTRADAY", { symbol: stock, market: "USD", interval: "5min", }) .then((data) => { for (let key in data["Time Series (5min)"]) { let openPrice = data["Time Series (5min)"][key]["1. open"]; prices.push(openPrice); } console.log(prices[0]); return prices[0]; }); }Deberías leer sobre Javascript Promises, te ayudará a entender lo que estás haciendo.