Wire Newbook credentials to settings service

frontend/src/api.ts

@@ -0,0 +1,37 @@
+const BASE = '/cashup/api'
+
+async function req<T>(method: string, path: string, body?: unknown): Promise<T> {
+  const res = await fetch(BASE + path, {
+    method,
+    credentials: 'include',
+    headers: body ? { 'Content-Type': 'application/json' } : undefined,
+    body: body ? JSON.stringify(body) : undefined,
+  })
+  if (!res.ok) {
+    const err = await res.json().catch(() => ({ error: res.statusText }))
+    throw new Error((err as { error?: string }).error || res.statusText)
+  }
+  return res.json()
+}
+
+export const api = {
+  get:    <T>(path: string) => req<T>('GET', path),
+  post:   <T>(path: string, body: unknown) => req<T>('POST', path, body),
+  put:    <T>(path: string, body: unknown) => req<T>('PUT', path, body),
+  delete: <T>(path: string) => req<T>('DELETE', path),
+}
+
+export async function uploadAttachment(cashUpId: number, file: File) {
+  const fd = new FormData()
+  fd.append('file', file)
+  const res = await fetch(`${BASE}/attachments/upload/${cashUpId}`, {
+    method: 'POST',
+    credentials: 'include',
+    body: fd,
+  })
+  if (!res.ok) {
+    const err = await res.json().catch(() => ({ error: res.statusText }))
+    throw new Error((err as { error?: string }).error || res.statusText)
+  }
+  return res.json()
+}