web/frpc: refactor dashboard with improved structure and API layer (#5117)

web/frpc/src/api/http.ts

@@ -0,0 +1,76 @@
+// http.ts - Base HTTP client
+
+class HTTPError extends Error {
+  status: number
+  statusText: string
+
+  constructor(status: number, statusText: string, message?: string) {
+    super(message || statusText)
+    this.status = status
+    this.statusText = statusText
+  }
+}
+
+async function request<T>(url: string, options: RequestInit = {}): Promise<T> {
+  const defaultOptions: RequestInit = {
+    credentials: 'include',
+  }
+
+  const response = await fetch(url, { ...defaultOptions, ...options })
+
+  if (!response.ok) {
+    throw new HTTPError(response.status, response.statusText, `HTTP ${response.status}`)
+  }
+
+  // Handle empty response (e.g. 204 No Content)
+  if (response.status === 204) {
+    return {} as T
+  }
+
+  const contentType = response.headers.get('content-type')
+  if (contentType && contentType.includes('application/json')) {
+    return response.json()
+  }
+  return response.text() as unknown as T
+}
+
+export const http = {
+  get: <T>(url: string, options?: RequestInit) => request<T>(url, { ...options, method: 'GET' }),
+  post: <T>(url: string, body?: any, options?: RequestInit) => {
+    const headers: HeadersInit = { ...options?.headers }
+    let requestBody = body
+
+    if (body && typeof body === 'object' && !(body instanceof FormData) && !(body instanceof Blob)) {
+        if (!('Content-Type' in headers)) {
+             (headers as any)['Content-Type'] = 'application/json'
+        }
+        requestBody = JSON.stringify(body)
+    }
+
+    return request<T>(url, { 
+      ...options, 
+      method: 'POST', 
+      headers,
+      body: requestBody
+    })
+  },
+  put: <T>(url: string, body?: any, options?: RequestInit) => {
+    const headers: HeadersInit = { ...options?.headers }
+    let requestBody = body
+
+    if (body && typeof body === 'object' && !(body instanceof FormData) && !(body instanceof Blob)) {
+        if (!('Content-Type' in headers)) {
+             (headers as any)['Content-Type'] = 'application/json'
+        }
+        requestBody = JSON.stringify(body)
+    }
+
+    return request<T>(url, { 
+      ...options, 
+      method: 'PUT', 
+      headers,
+      body: requestBody
+    })
+  },
+  delete: <T>(url: string, options?: RequestInit) => request<T>(url, { ...options, method: 'DELETE' }),
+}