@copilotkit/runtime/dist/v2/runtime/endpoints/express.mjs

<img src="https://github.com/user-attachments/assets/0a6b64d9-e193-4940-a3f6-60334ac34084" alt="banner" style="border-radius: 12px; border: 2px solid #d6d4fa;" />

import "reflect-metadata";
import { createCopilotRuntimeHandler } from "../core/fetch-handler.mjs";
import { createExpressNodeHandler } from "./express-fetch-bridge.mjs";
import express from "express";
import cors from "cors";

//#region src/v2/runtime/endpoints/express.ts
function createCopilotExpressHandler({ runtime, basePath, mode = "multi-route", cors: corsOption = true, hooks }) {
	const normalizedBase = normalizeBasePath(basePath);
	const nodeHandler = createExpressNodeHandler(createCopilotRuntimeHandler({
		runtime,
		basePath: normalizedBase,
		mode,
		cors: false,
		hooks
	}));
	const expressHandler = async (req, res, next) => {
		try {
			await nodeHandler(req, res);
		} catch (err) {
			next(err);
		}
	};
	const router = express.Router();
	if (corsOption) {
		const corsConfig = corsOption === true ? {
			origin: "*",
			methods: [
				"GET",
				"HEAD",
				"PUT",
				"POST",
				"DELETE",
				"PATCH",
				"OPTIONS"
			],
			allowedHeaders: ["*"]
		} : corsOption;
		router.use(cors(corsConfig));
	}
	if (mode === "single-route") {
		router.post(normalizedBase, expressHandler);
		router.options(normalizedBase, expressHandler);
	} else if (normalizedBase === "/") router.all(/.*/, expressHandler);
	else router.all(new RegExp(`^${escapeRegExp(normalizedBase)}(\\/.*)?$`), expressHandler);
	return router;
}
function escapeRegExp(s) {
	return s.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
}
function normalizeBasePath(path) {
	if (!path) throw new Error("basePath must be provided for Express endpoint");
	if (!path.startsWith("/")) return `/${path}`;
	if (path.length > 1 && path.endsWith("/")) return path.slice(0, -1);
	return path;
}

//#endregion
export { createCopilotExpressHandler };
//# sourceMappingURL=express.mjs.map