server/app/middleware/errorEmail.js

'use strict';
const _ = require('lodash');
module.exports = options => {
  return async function errorEmail(ctx, next) {
    try {
      await next();
    } catch (e) {
      let errcode = -1,
        errmsg = '服务发生错误',
        details;
      const emailData = {};
      const ekeys = Object.keys(e);
      if (ekeys.includes('errcode')) {
        // 人为抛出异常
        errcode = _.get(e, 'errcode');
        errmsg = _.get(e, 'errmsg');
        details = _.get(e, 'details');
        emailData.errmsg = errmsg;
        emailData.details = details;
      } else {
        // 由assert/参数判断抛出的
        errmsg = e.message;
        emailData.errmsg = e.stack;
        if (process.env.NODE_ENV === 'development') {
          details = e.stack;
        }
      }
      emailData.errcode = errcode;
      const request = ctx.request;
      const url = _.get(request, 'url');
      let body = _.get(request, 'body');
      if (body) body = JSON.stringify(body, null, 1);
      emailData.errmsg = `${url}\n${body}\n${emailData.errmsg}`;
      // console.log(emailData.errmsg);
      // 未定义的错误需要发邮件,定义的错误不需要
      if (!_.isNumber(e.errcode)) {
        // 非开发模式发送邮件
        if (process.env.NODE_ENV !== 'development') {
          ctx.service.util.email.errorEmail(emailData);
        }
      }
      ctx.fail(errcode, errmsg, details);
    }
  };
};