R524809
101 lines
3.5 KiB
TypeScript
101 lines
3.5 KiB
TypeScript
import { getApiConfig } from '../config/api';
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export class ApiRequestError extends Error {
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constructor(
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message: string,
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readonly statusCode = 0,
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readonly reason = '',
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) {
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super(message);
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this.name = 'ApiRequestError';
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}
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}
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export interface RequestOptions {
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method?: 'GET' | 'POST' | 'PUT' | 'DELETE';
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data?: Record<string, unknown>;
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header?: Record<string, string>;
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timeout?: number;
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upload?: { filePath: string; uploadId: string };
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}
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/** 底层只发请求，不触发登录；登录接口与鉴权包装共用，避免循环依赖。 */
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export function requestApi<T>(
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path: string,
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options: RequestOptions = {},
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config = getApiConfig(),
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): Promise<T> {
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if (!path.startsWith('/') || path.startsWith('//'))
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throw new Error('接口路径不正确');
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return new Promise((resolve, reject) => {
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const success = (res: { statusCode: number; data: unknown }) => {
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const body = res.data as {
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code?: number;
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data?: T;
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reason?: string;
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} | null;
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if (res.statusCode < 200 || res.statusCode >= 300) {
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reject(
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new ApiRequestError(
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res.statusCode === 404
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? '内容暂不可用'
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: '接口请求失败，请稍后重试',
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res.statusCode,
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typeof body?.reason === 'string' &&
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/^[A-Z_]{1,64}$/.test(body.reason)
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? body.reason
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: '',
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),
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);
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} else if (
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!body ||
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body.code !== 0 ||
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!Object.prototype.hasOwnProperty.call(body, 'data')
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) {
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reject(
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new ApiRequestError(
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'接口返回异常，请稍后重试',
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res.statusCode,
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),
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);
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} else resolve(body.data as T);
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};
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const fail = () =>
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reject(new ApiRequestError('连接失败，请确认后端已启动及网络配置'));
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if (options.upload) {
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// wx.uploadFile 由运行时生成 multipart boundary，不能自行设置 JSON Content-Type。
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wx.uploadFile({
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url: `${config.baseUrl}${path}`,
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filePath: options.upload.filePath,
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name: 'file',
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formData: { uploadId: options.upload.uploadId },
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header: options.header,
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timeout: 60000,
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success(res) {
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let data: unknown;
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try {
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data = JSON.parse(res.data);
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} catch {
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reject(new ApiRequestError('上传响应格式异常'));
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return;
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}
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success({ statusCode: res.statusCode, data });
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},
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fail,
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});
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} else
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wx.request({
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url: `${config.baseUrl}${path}`,
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method: options.method || 'GET',
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data: options.data,
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header: {
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'Content-Type': 'application/json',
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...options.header,
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},
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timeout: options.timeout ?? config.timeout,
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success,
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fail,
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});
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});
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}
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