feat(POS-006): completed feature

project/apps/pos/src/lib/api-client.ts

@@ -0,0 +1,40 @@
+const API = process.env.NEXT_PUBLIC_API_URL ?? 'http://localhost:3000';
+
+async function apiFetch<T>(path: string, init?: RequestInit): Promise<T> {
+  const res = await fetch(`${API}${path}`, {
+    ...init,
+    credentials: 'include',
+    headers: {
+      'Content-Type': 'application/json',
+      ...(init?.headers ?? {}),
+    },
+  });
+  if (!res.ok) {
+    const err = await res.json().catch(() => ({ message: res.statusText }));
+    throw Object.assign(new Error((err as { message?: string }).message ?? 'Request failed'), { status: res.status });
+  }
+  return res.json() as Promise<T>;
+}
+
+export const posApi = {
+  /** Get current terminal info. Requires x-terminal-id header set by middleware. */
+  me: () => apiFetch('/pos/terminals/me'),
+  /** Bind terminal with code. */
+  bind: (bindingCode: string) =>
+    apiFetch('/pos/terminals/bind', { method: 'POST', body: JSON.stringify({ bindingCode }) }),
+  /** Get POS config (store + terminal + payment methods + session status). */
+  config: () => apiFetch('/pos/config'),
+  /** List products by query. */
+  searchProducts: (q: string, storeId?: string, limit = 20) =>
+    apiFetch(`/pos/products/search?q=${encodeURIComponent(q)}&storeId=${storeId ?? ''}&limit=${limit}`),
+  /** Get product by EAN. */
+  productByEan: (ean: string) => apiFetch(`/pos/products/by-ean/${encodeURIComponent(ean)}`),
+  /** Get product by SKU. */
+  productBySku: (sku: string) => apiFetch(`/pos/products/by-sku/${encodeURIComponent(sku)}`),
+};
+
+export const authApi = {
+  login: (email: string, password: string) =>
+    apiFetch('/auth/login', { method: 'POST', body: JSON.stringify({ email, password }) }),
+  logout: () => apiFetch('/auth/logout', { method: 'POST' }),
+};