中间件｜加入统一的 API Path

import { Provide, Config, ALL } from '@midwayjs/decorator';
import { IWebMiddleware, IMidwayWebNext } from '@midwayjs/web';
import { Context } from 'egg';
import { MyConfig } from '../config/types';
@Provide()
export class ContentPathMiddleware implements IWebMiddleware {
  @Config(ALL)
  config: MyConfig;
  resolve() {
    return async (ctx: Context, next: IMidwayWebNext) => {
      const { contextPath } = this.config;
      if (contextPath) {
        const reg = new RegExp(contextPath);
        const { url } = ctx.req;
        if (reg.test(url)) {
          // 去掉 content path
          const path = ctx.req.url.replace(reg, '');
          // console.log('去掉 contentPath > ', path);
          if (path) ctx.req.url = path;
        }
      }
      const { url, method, httpVersion, headers = {} } = ctx.req;
      const { body } = ctx.request;
      console.log( '>>> ', method, httpVersion, headers['content-type'], url, JSON.stringify(body) );
      await next();
      console.log( '<<< ', method, ctx.response.headers['content-type'], url, JSON.stringify(ctx.body) );
    };
  }
}