Javascript 关于使用Everyauth进行github身份验证的问题

在我导航到url.com/auth/github并授权github后，我会收到下面列出的错误消息，说我没有履行承诺，即使我在App.js中这样做了

App.js：

var appPath = __dirname + '/app'
    , http = require('http')
    , path = require('path')
    , fs = require('fs')
    , everyauth = require('everyauth')


everyauth.github
  .appId('xxxxxxx')
  .appSecret('xxxxxxx')
  .findOrCreateUser( function (session, accessToken, accessTokenExtra, githubUserMetadata, promise) {

      var promise = this.Promise();

      var user = {
          name: githubUserMetadata.name,
          email: githubUserMetadata.email,
          username: githubUserMetadata.login,
          firstName: name.substring(0, name.indexOf(' ')),
          githubId: githubUserMetadata.id
      };


      app.User.findOne({githubId: githubUserMetadata.id }, function(err, user) {
        if (!user) {

        User.create(user, function userCreated(err, user){
            req.session.User = user;

        });
        promise.fulfill(user);

        }

      });
      return promise;


  })
  .redirectPath('/');

我使用的框架是Sailsjs，它应该使User.create成为可能

浏览器中的错误消息，而不是终端终端终端中没有错误：

 Error: Step findOrCreateUser of `github` is promising: user ; however, the step returns
 nothing. Fix the step by returning the expected values OR by returning a Promise that
promises said values. at Step.exec (/app/node_modules/everyauth/lib/step.js:79:7) at
/app/node_modules/everyauth/lib/stepSequence.js:26:34 at Promise.fulfill
(/app/node_modules/everyauth/lib/promise.js:44:21) at
/app/node_modules/everyauth/lib/stepSequence.js:29:19 at Promise.callback
(/app/node_modules/everyauth/lib/promise.js:12:8) at
/app/node_modules/everyauth/lib/stepSequence.js:28:19 at Promise.fulfill
(/app/node_modules/everyauth/lib/promise.js:44:21) at
/app/node_modules/everyauth/lib/stepSequence.js:29:19 at Promise.fulfill
(/app/node_modules/everyauth/lib/promise.js:44:21) at
/app/node_modules/everyauth/lib/modules/github.js:50:9

谢谢你的帮助

我想应该是这样

app.User.findOne({githubId: githubUserMetadata.id}, function(err, user) {
  if (err) {
    promise.fail(err);
  } else if (!user) {
    User.create(user, function userCreated(err, user){
      if (err) {
        promise.fail(err);
      } else {
        req.session.User = user;
        promise.fulfill(user);
      }
    });
  } else {
    promise.fulfill(user);
  }
});

---

不幸的是，这个库使用的方法似乎缺少一些重要的特性，这些特性使得处理承诺变得更加容易。它不是偶数：-

我猜User.create是异步的，并且promise.fulfill不喜欢被空调用。@Bergi您的猜测是正确的。promise.fulfill需要进入userCreated内部。