Cómo Conectar WhatsApp con DeepSeek
DeepSeek expone una API compatible con OpenAI, así que puedes usar el mismo paquete npm openai — solo apúntalo al endpoint de DeepSeek. Esto facilita cambiar entre OpenAI, DeepSeek y otros proveedores compatibles.
Requisitos Previos
- Una sesión vinculada de whatsmeow-node (Cómo Vincular)
- Una API key de DeepSeek (configurada como variable de entorno
DEEPSEEK_API_KEY) — obtén una en platform.deepseek.com - El SDK de OpenAI:
npm install openai
Paso 1: Configurar Ambos Clientes
La única diferencia con OpenAI es el baseURL y la API key:
import { createClient } from "@whatsmeow-node/whatsmeow-node";
import OpenAI from "openai";
const client = createClient({ store: "session.db" });
const openai = new OpenAI({
baseURL: "https://api.deepseek.com",
apiKey: process.env.DEEPSEEK_API_KEY,
});
const SYSTEM_PROMPT = "You are a helpful WhatsApp assistant. Keep responses concise — under 500 characters when possible, since this is a chat interface.";
Paso 2: Manejar Mensajes Entrantes
client.on("message", async ({ info, message }) => {
if (info.isFromMe) return;
const text =
(message.conversation as string) ??
(message.extendedTextMessage as { text?: string } | undefined)?.text;
if (!text) return;
await client.sendChatPresence(info.chat, "composing");
const reply = await askDeepSeek(info.sender, text);
await client.sendMessage(info.chat, { conversation: reply });
});
Paso 3: Enviar a DeepSeek
async function askDeepSeek(userJid: string, userMessage: string): Promise<string> {
const response = await openai.chat.completions.create({
model: "deepseek-chat",
messages: [
{ role: "system", content: SYSTEM_PROMPT },
{ role: "user", content: userMessage },
],
});
return response.choices[0].message.content ?? "I couldn't generate a response.";
}
info
DeepSeek también ofrece deepseek-reasoner para tareas de razonamiento complejo. Cambia el nombre del modelo para probarlo.
Paso 4: Agregar Historial de Conversación
Como DeepSeek usa el formato compatible con OpenAI, el patrón de historial es idéntico:
import type { ChatCompletionMessageParam } from "openai/resources/chat/completions";
const conversations = new Map<string, ChatCompletionMessageParam[]>();
const MAX_HISTORY = 20;
async function askDeepSeek(userJid: string, userMessage: string): Promise<string> {
const history = conversations.get(userJid) ?? [];
history.push({ role: "user", content: userMessage });
if (history.length > MAX_HISTORY) {
history.splice(0, history.length - MAX_HISTORY);
}
const response = await openai.chat.completions.create({
model: "deepseek-chat",
messages: [{ role: "system", content: SYSTEM_PROMPT }, ...history],
});
const reply = response.choices[0].message.content ?? "I couldn't generate a response.";
history.push({ role: "assistant", content: reply });
conversations.set(userJid, history);
return reply;
}
Ejemplo Completo
import { createClient } from "@whatsmeow-node/whatsmeow-node";
import OpenAI from "openai";
import type { ChatCompletionMessageParam } from "openai/resources/chat/completions";
const client = createClient({ store: "session.db" });
const openai = new OpenAI({
baseURL: "https://api.deepseek.com",
apiKey: process.env.DEEPSEEK_API_KEY,
});
const SYSTEM_PROMPT =
"You are a helpful WhatsApp assistant. Keep responses concise — under 500 characters when possible, since this is a chat interface.";
const conversations = new Map<string, ChatCompletionMessageParam[]>();
const MAX_HISTORY = 20;
async function askDeepSeek(userJid: string, userMessage: string): Promise<string> {
const history = conversations.get(userJid) ?? [];
history.push({ role: "user", content: userMessage });
if (history.length > MAX_HISTORY) {
history.splice(0, history.length - MAX_HISTORY);
}
const response = await openai.chat.completions.create({
model: "deepseek-chat",
messages: [{ role: "system", content: SYSTEM_PROMPT }, ...history],
});
const reply = response.choices[0].message.content ?? "I couldn't generate a response.";
history.push({ role: "assistant", content: reply });
conversations.set(userJid, history);
return reply;
}
client.on("message", async ({ info, message }) => {
if (info.isFromMe) return;
const text =
(message.conversation as string) ??
(message.extendedTextMessage as { text?: string } | undefined)?.text;
if (!text) return;
console.log(`${info.pushName}: ${text}`);
await client.sendChatPresence(info.chat, "composing");
try {
const reply = await askDeepSeek(info.sender, text);
await client.sendMessage(info.chat, { conversation: reply });
console.log(`→ ${reply.slice(0, 80)}...`);
} catch (err) {
console.error("DeepSeek API error:", err);
await client.sendMessage(info.chat, {
conversation: "Sorry, I'm having trouble right now. Try again in a moment.",
});
}
});
client.on("logged_out", ({ reason }) => {
console.error(`Logged out: ${reason}`);
client.close();
process.exit(1);
});
async function main() {
const { jid } = await client.init();
if (!jid) {
console.error("Not paired! See: How to Pair WhatsApp");
process.exit(1);
}
await client.connect();
await client.sendPresence("available");
console.log("DeepSeek bot is online!");
process.on("SIGINT", async () => {
await client.sendPresence("unavailable");
await client.disconnect();
client.close();
process.exit(0);
});
}
main().catch(console.error);
Cambiar Entre Proveedores
Como DeepSeek, OpenAI y muchos otros proveedores usan el mismo formato de API, puedes hacer configurable el proveedor:
const openai = new OpenAI({
baseURL: process.env.AI_BASE_URL ?? "https://api.openai.com/v1",
apiKey: process.env.AI_API_KEY,
});
const model = process.env.AI_MODEL ?? "gpt-4o";
Esto funciona con cualquier proveedor compatible con OpenAI — DeepSeek, Groq, Together AI, Mistral y más.
Errores Comunes
Bucles de eco
Siempre verifica info.isFromMe primero. Sin esto, el bot responde a sus propios mensajes para siempre.
Exposición de la API key
Nunca escribas tu API key directamente en el código. Usa variables de entorno o un archivo .env (agregado a .gitignore).
