service-article/app/middleware/fetchThumbs.js

'use strict';
const _ = require('lodash');
const querystring = require('querystring');
const { ObjectId } = require('mongoose').Types;
module.exports = options => {
  return async function fetchThumbs(ctx, next) {
    const url = ctx.request.url.split('?')[1];
    const query = JSON.parse(JSON.stringify(querystring.parse(url)));
    const { openid } = query;
    await next();
    if (openid) {
      let data = _.get(ctx.response, 'body.data');
      if (data) {
        data = JSON.parse(JSON.stringify(data));
        const res = await ctx.service.thumbs.getSum({ ids: [ data._id ], openid });
        const r = res.find(f => ObjectId(f._id).equals(data._id));
        if (r && r.sum > 0) data.thumbs = true;
        else data.thumbs = false;
        ctx.response.body.data = data;
      }
    }

  };
};