initial commit

apps/Frontend/src/lib/queryClient.ts

@@ -0,0 +1,149 @@
+import { QueryClient, QueryFunction } from "@tanstack/react-query";
+
+const API_BASE_URL = import.meta.env.VITE_API_BASE_URL_BACKEND ?? "";
+
+async function throwIfResNotOk(res: Response) {
+  if (!res.ok) {
+    if (res.status === 401) {
+      localStorage.removeItem("token");
+      if (!window.location.pathname.startsWith("/auth")) {
+        window.location.href = "/auth";
+        throw new Error(`${res.status}: Unauthorized`);
+      }
+      return;
+    }
+
+    // Try to parse the response as JSON for a more meaningful error message
+    let message = `${res.status}: ${res.statusText}`;
+
+    try {
+      const errorBody = await res.clone().json();
+
+      if (errorBody?.error) {
+        message = errorBody.error;
+      } else if (errorBody?.message) {
+        message = errorBody.message;
+      } else if (errorBody?.detail) {
+        message = errorBody.detail;
+      }
+    } catch {
+      // fallback to reading raw text so no error is lost
+      try {
+        const text = await res.clone().text();
+        if (text?.trim()) {
+          message = text.trim();
+        }
+      } catch {}
+    }
+
+    throw new Error(message);
+  }
+}
+
+export async function apiRequest(
+  method: string,
+  url: string,
+  data?: unknown | undefined
+): Promise<Response> {
+  const token = localStorage.getItem("token");
+
+  const isFormData =
+    typeof FormData !== "undefined" && data instanceof FormData;
+
+  const isFileLike =
+    (typeof File !== "undefined" && data instanceof File) ||
+    (typeof Blob !== "undefined" && data instanceof Blob);
+
+  const isArrayBufferLike =
+    (typeof ArrayBuffer !== "undefined" && data instanceof ArrayBuffer) ||
+    (typeof Uint8Array !== "undefined" && data instanceof Uint8Array) ||
+    (data != null && (data as any)?.constructor?.name === "Buffer"); // Node Buffer
+
+  // Decide Content-Type header appropriately:
+  const headers: Record<string, string> = {
+    ...(token ? { Authorization: `Bearer ${token}` } : {}),
+  };
+
+  if (!isFormData) {
+    if (isFileLike) {
+      // File/Blob: use its own MIME type if present, otherwise fallback
+      const mime = (data as File | Blob).type || "application/octet-stream";
+      headers["Content-Type"] = mime;
+    } else if (isArrayBufferLike) {
+      // ArrayBuffer / Buffer / Uint8Array: use generic octet-stream
+      headers["Content-Type"] = "application/octet-stream";
+    } else {
+      // Normal JSON body
+      headers["Content-Type"] = "application/json";
+    }
+  }
+  // If FormData, we must NOT set Content-Type (browser will set multipart boundary)
+
+  // Build final body
+  const finalBody = isFormData
+    ? (data as FormData)
+    : isFileLike
+      ? // File/Blob can be passed directly as BodyInit
+        (data as BodyInit)
+      : isArrayBufferLike
+        ? // ArrayBuffer / Uint8Array / Buffer -> convert to Uint8Array if needed
+          (data as BodyInit)
+        : data !== undefined
+          ? JSON.stringify(data)
+          : undefined;
+
+  const res = await fetch(`${API_BASE_URL}${url}`, {
+    method,
+    headers,
+    body: finalBody,
+    credentials: "include",
+  });
+
+  await throwIfResNotOk(res);
+  return res;
+}
+
+type UnauthorizedBehavior = "returnNull" | "throw";
+
+export const getQueryFn: <T>(options: {
+  on401: UnauthorizedBehavior;
+}) => QueryFunction<T> =
+  ({ on401: unauthorizedBehavior }) =>
+  async ({ queryKey }) => {
+    const url = `${API_BASE_URL}${queryKey[0] as string}`;
+
+    const token = localStorage.getItem("token");
+
+    const res = await fetch(url, {
+      headers: {
+        ...(token ? { Authorization: `Bearer ${token}` } : {}),
+      },
+      credentials: "include",
+    });
+
+    if (
+      unauthorizedBehavior === "returnNull" &&
+      (res.status === 401 || res.status === 403)
+    ) {
+      return null;
+    }
+
+    await throwIfResNotOk(res);
+    return await res.json();
+  };
+
+export const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      queryFn: getQueryFn({ on401: "throw" }),
+      refetchInterval: false,
+      refetchOnWindowFocus: false,
+      refetchOnMount: true,
+      staleTime: 0,
+      retry: false,
+    },
+    mutations: {
+      retry: false,
+    },
+  },
+});