service-live/app/middleware/medium.js

'use strict';
const _ = require('lodash');

const idToData = async (ctx, id) => {
  const res = await ctx.service.util.httpUtil.cget(`/mechanism/${id}`, 'hnhmain');
  return res;
};

module.exports = options => {
  return async function medium(ctx, next) {
    await next();
    const request = ctx.request;
    const { method } = request;
    if (method === 'GET') {
      // 处理get的时coupons_id换成对应的数据
      let { data } = ctx.body;
      data = JSON.parse(JSON.stringify(data));
      if (_.isArray(data)) {
        // 数组,多个,循环查
        for (const i of data) {
          const { medium_id } = i;
          const res = await idToData(ctx, medium_id);
          if (res)i.medium = res;
        }
      } else if (_.isObject(data)) {
        // 一个,找完就完事
        const { medium_id } = data;
        const res = await idToData(ctx, medium_id);
        if (res) data.medium = res;
      }
      ctx.body.data = data;
    }
  };
};