server-haocai/app/service/wx.js

'use strict';
const { CrudService } = require('naf-framework-mongoose-free/lib/service');
const { BusinessError, ErrorCode } = require('naf-core').Error;
const _ = require('lodash');
const assert = require('assert');

// 微信
class WxService extends CrudService {
  constructor(ctx) {
    super(ctx, 'wx');
    this.model = this.ctx.model.Wx;
  }

  // 小程序登录
  async appAuth({ js_code }) {
    const { wxAppConfig } = this.app.config;
    if (!wxAppConfig) return;
    let url = 'https://api.weixin.qq.com/sns/jscode2session';
    let query = `?js_code=${js_code}`;
    const keys = Object.keys(wxAppConfig);
    for (const key of keys) {
      query = `${query}&${key}=${wxAppConfig[key]}`;
    }
    url = `${url}${query}`;
    const res = await this.ctx.curl(url, {
      method: 'get',
      headers: {
        'content-type': 'application/json',
      },
      dataType: 'json',
    });

    const { openid } = res.data;
    if (!openid) throw new BusinessError(ErrorCode.BUSINESS, '未获取到openid', '未获取到openid');


    return { openid };
  }
}

module.exports = WxService;