Initial commit: NetsKey ERP (copper & cream redesign)

src/lib/api.ts

@@ -0,0 +1,59 @@
+import { getDeviceId } from "@/lib/deviceId";
+
+export class ApiError extends Error {
+  status: number;
+  body: any;
+  constructor(message: string, status: number, body?: any) {
+    super(message);
+    this.status = status;
+    this.body = body;
+  }
+}
+
+let refreshInFlight: Promise<boolean> | null = null;
+
+async function tryRefresh(): Promise<boolean> {
+  if (!refreshInFlight) {
+    refreshInFlight = fetch("/api/auth/refresh", {
+      method: "POST",
+      credentials: "include",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ deviceId: getDeviceId() }),
+    })
+      .then((r) => r.ok)
+      .finally(() => {
+        refreshInFlight = null;
+      });
+  }
+  return refreshInFlight;
+}
+
+export async function apiFetch<T = any>(
+  path: string,
+  options: RequestInit = {},
+  _retried = false
+): Promise<T> {
+  const res = await fetch(path, {
+    ...options,
+    credentials: "include",
+    headers: {
+      "Content-Type": "application/json",
+      ...(options.headers ?? {}),
+    },
+  });
+
+  if (res.status === 401 && !_retried && !path.startsWith("/api/auth/")) {
+    const refreshed = await tryRefresh();
+    if (refreshed) {
+      return apiFetch<T>(path, options, true);
+    }
+  }
+
+  const isJson = res.headers.get("content-type")?.includes("application/json");
+  const body = isJson ? await res.json().catch(() => ({})) : null;
+
+  if (!res.ok) {
+    throw new ApiError(body?.error ?? "Request failed", res.status, body);
+  }
+  return body as T;
+}