127 lines
3.5 KiB
TypeScript
127 lines
3.5 KiB
TypeScript
import Taro from '@tarojs/taro'
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/**
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* 后端接口请求封装
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* 后端统一响应：{ code, message, data }，code === 0 表示成功
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* token 通过 Authorization: Bearer <token> 传入
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*/
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export const BASE_URL = 'https://wxbackend.tokenleaping.com'
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const TOKEN_KEY = 'smart_access_token'
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/** 安全隐藏 loading：没有活动 loading 时调用 hideLoading 会抛 hideToast:fail，这里吞掉 */
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export function safeHideLoading(): void {
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try { Taro.hideLoading() } catch { /* ignore */ }
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}
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// ---------- token 存取 ----------
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export function getToken(): string {
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try {
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return Taro.getStorageSync(TOKEN_KEY) || ''
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} catch {
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return ''
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}
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}
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export function setToken(token: string): void {
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Taro.setStorageSync(TOKEN_KEY, token)
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}
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export function clearToken(): void {
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try {
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Taro.removeStorageSync(TOKEN_KEY)
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} catch {
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/* ignore */
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}
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}
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// ---------- 类型 ----------
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interface ApiResponse<T = unknown> {
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code: number
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message: string
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data: T
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}
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export interface RequestOptions {
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method?: 'GET' | 'POST' | 'PUT' | 'PATCH' | 'DELETE'
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data?: unknown
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/** 额外请求头 */
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headers?: Record<string, string>
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/** 是否自动携带 token，默认 true */
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auth?: boolean
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}
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// ---------- request ----------
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/**
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* 发请求。成功（code===0）返回 data；业务失败抛 Error(message)；HTTP 401 清 token 并抛错。
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* 调用方可自行 catch 或用 onUnauthorized 钩子统一处理跳登录。
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*/
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export async function request<T = unknown>(
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path: string,
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options: RequestOptions = {},
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): Promise<T> {
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const { method = 'GET', data, headers = {}, auth = true } = options
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const token = getToken()
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const finalHeaders: Record<string, string> = {
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'Content-Type': 'application/json',
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...(auth && token ? { Authorization: `Bearer ${token}` } : {}),
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...headers,
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}
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let res: Taro.request.SuccessCallbackResult
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try {
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res = await Taro.request({
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url: `${BASE_URL}${path}`,
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method,
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data,
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header: finalHeaders,
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})
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} catch (e) {
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// 网络层异常
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throw new Error('网络异常，请稍后重试')
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}
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// HTTP 未授权：清 token，交回调处理
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if (res.statusCode === 401) {
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clearToken()
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onUnauthorized?.()
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throw new Error('登录已过期，请重新登录')
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}
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const body = res.data as ApiResponse<T>
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// 后端业务码非 0：当作错误抛出
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if (body && typeof body.code === 'number' && body.code !== 0) {
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throw new Error(body.message || '请求失败')
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}
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return (body && typeof body.code === 'number' ? body.data : body) as T
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}
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/** 401 钩子，由业务方注册（如跳转登录页） */
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export let onUnauthorized: (() => void) | null = null
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export function setOnUnauthorized(handler: () => void): void {
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onUnauthorized = handler
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}
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// ---------- 便捷方法 ----------
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export const http = {
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get: <T = unknown>(path: string, options?: RequestOptions) =>
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request<T>(path, { ...options, method: 'GET' }),
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post: <T = unknown>(path: string, data?: unknown, options?: RequestOptions) =>
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request<T>(path, { ...options, method: 'POST', data }),
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put: <T = unknown>(path: string, data?: unknown, options?: RequestOptions) =>
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request<T>(path, { ...options, method: 'PUT', data }),
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patch: <T = unknown>(path: string, data?: unknown, options?: RequestOptions) =>
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request<T>(path, { ...options, method: 'PATCH', data }),
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del: <T = unknown>(path: string, options?: RequestOptions) =>
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request<T>(path, { ...options, method: 'DELETE' }),
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}
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export default http
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