Run an agent HTTP application

import express from "express";
import { Agent, openai } from "@agentium/core";
import { createAgentRouter } from "@agentium/transport";

const support = new Agent({
  name: "support",
  model: openai(process.env.OPENAI_MODEL ?? "gpt-6.1-sol"),
  instructions: "Help customers with orders. Ask for an order ID when it is missing.",
});
const app = express();
app.use(express.json({ limit: "1mb" }));
app.use("/api", createAgentRouter({
  registry: false,
  agents: { support },
  security: { mode: "local" },
}));
const server = app.listen(3000, "127.0.0.1", () => {
  console.log("Support API: http://127.0.0.1:3000/api/agents/support/run");
});

let closing = false;
function shutdown() {
  if (closing) return;
  closing = true;
  server.close((error) => {
    void support.close().catch(console.error);
    if (error) { console.error(error); process.exitCode = 1; }
  });
}
process.once("SIGINT", shutdown);
process.once("SIGTERM", shutdown);