Snip/vite.config.ts

import { defineConfig } from "vite";
import react from "@vitejs/plugin-react";

// Minimal ambient declaration so we can read an env override without pulling in
// @types/node just for the config file.
declare const process: { env: Record<string, string | undefined> };

// In dev the SPA runs on :5173 while the Go API runs elsewhere (default :8080,
// or the compose gateway). Proxy /api so the browser stays same-origin — no
// CORS, and the session cookie works. Override the target with VITE_API_PROXY.
const apiTarget = process.env.VITE_API_PROXY || "http://localhost:8080";

export default defineConfig({
  plugins: [react()],
  server: {
    host: true,
    port: 5173,
    proxy: {
      "/api": {
        target: apiTarget,
        changeOrigin: true,
      },
    },
  },
});