service-htyd/app/service/qrcode.js

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


// 二维码
class QrcodeService extends CrudService {
  constructor(ctx) {
    super(ctx, 'qrcode');
    this.model = this.ctx.model.Card;
    this.uri = 'http://www.baidu.com/';
  }

  async initQRCode({ id = 'a' }) {
    // assert(id, '缺少推荐人信息');
    // const user = await this.model.findById(id);
    // if (!user) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '为找到用户信息');
    // const { mobile, name } = user;
    const mobile = '13089419810',
      name = 'liuruifeng';
    const url = `${this.uri}?id=${id}&mobile=${mobile}&name=${name}`;
    // const res = await QRCode.toDataURL(url, {
    //   width: 200,
    // });
    const qrcode = await QRCode.toFile(url);
    // const qrcode = await QRCode.toString(url, { type: 'png' });
    // const qrimage = `data:image/png;base64${Buffer(qrcode).toString('base64')}`;
    return qrcode;
  }
}

module.exports = QrcodeService;