Uw eigen
AI-assistent
24/7 klaar

De proxy API (api/chat.js)

Dit is het hart van de backend — de code die veilig communiceert met OpenAI.

// api/chat.js — Vercel Serverless Function
const OpenAI = require('openai');

const openai = new OpenAI({
  apiKey: process.env.OPENAI_API_KEY
});

module.exports = async (req, res) => {
  // CORS — sta uw eigen domeinen toe
  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader('Access-Control-Allow-Methods', 'POST, OPTIONS');
  if (req.method === 'OPTIONS') return res.status(200).end();

  const { message, threadId } = req.body;

  // Thread aanmaken of hergebruiken
  const thread = threadId
    ? { id: threadId }
    : await openai.beta.threads.create();

  // Bericht toevoegen
  await openai.beta.threads.messages.create(thread.id, {
    role: 'user', content: message
  });

  // Run starten op uw Assistant
  const run = await openai.beta.threads.runs.createAndPoll(thread.id, {
    assistant_id: process.env.OPENAI_ASSISTANT_ID
  });

  // Antwoord ophalen
  const messages = await openai.beta.threads.messages.list(thread.id);
  const reply = messages.data[0].content[0].text.value;

  res.json({ reply, threadId: thread.id });
};