当你在https://code.google.com/apis/console注册你的应用程序 创建一个客户端ID，你就有机会指定一个或多个重定向 uri。你的认证URI上的redirect_uri参数的值必须 完全匹配其中一个。

对于我的web应用程序，我纠正了我的错误

instead of : http://localhost:11472/authorize/
type :      http://localhost/authorize/

在我的例子中，我的证书应用类型是“其他”。所以我无法在凭证页中找到授权重定向uri。它似乎出现在应用程序类型:“Web应用程序”。但是您可以单击Download JSON按钮来获取client_secret。json文件。

打开json文件，你可以找到这样的参数:"redirect_uri ":["urn:ietf:wg:oauth:2.0:oob"，"http://localhost"]。我选择使用http://localhost，它很适合我。

I had this problem using Meteor and Ngrok, while trying to login with Google. I put the Ngrok URL in the Google Developer Console as redirect URLs, and went to the Ngrok URL page. The thing was that I didn't use Meteor's ROOT_URL when executing the app, so any redirect would go to localhost:3000 insted of the Ngrok URL. Just fixed it by adding the Ngrok URL as ROOT_URL on Meteor's configuration or by exporting it before executing the app on the terminal like: export ROOT_URL=https://my_ngrok_url

它已经得到了彻底的回答，但最近(比如，一个月前)谷歌停止接受我的URI，它将无法工作。事实上，我知道它以前做过，因为有一个用户注册了它。

无论如何，问题是常规400:redirect_uri_mismatch，但唯一的区别是，它是从https://更改为http://，和谷歌将不允许您注册http://重定向URI，因为它们是生产发布状态(而不是localhost)。

问题是在我的回调(我使用护照认证)，我只做了

callbackURL: "/register/google/redirect"

读文档，他们用的是完整的URL，所以我改成了

callbackURL: "https://" + process.env.MY_URL+ "/register/google/redirect"

将https localhost添加到我接受的URI中，这样我就可以在本地进行测试，它又开始工作了。

TL;DR使用完整的URL，这样你就知道你要重定向到哪里

这个答案与Mike的答案和Jeff的答案相同，都在客户端设置redirect_uri为postmessage。我想添加更多关于服务器端的信息，以及适用于此配置的特殊情况。

技术堆栈

后端

Python 3.6 Django 1.11 Django REST Framework 3.9:服务器作为API，不渲染模板，在其他地方没有做太多。 Django REST Framework JWT 1.11 Django REST Social Auth < 2.1

前端

React: 16.8.3, create-react-app版本2.1.5 react-google-login: 5.0.2

“代码”流程(专门用于谷歌OAuth2)

总结:React—>请求社交认证“代码”—>请求jwt令牌，以获得您自己的后端服务器/数据库的“登录”状态。

Frontend (React) uses a "Google sign in button" with responseType="code" to get an authorization code. (it's not token, not access token!) The google sign in button is from react-google-login mentioned above. Click on the button will bring up a popup window for user to select account. After user select one and the window closes, you'll get the code from the button's callback function. Frontend send this to backend server's JWT endpoint. POST request, with { "provider": "google-oauth2", "code": "your retrieved code here", "redirect_uri": "postmessage" } For my Django server I use Django REST Framework JWT + Django REST Social Auth. Django receives the code from frontend, verify it with Google's service (done for you). Once verified, it'll send the JWT (the token) back to frontend. Frontend can now harvest the token and store it somewhere. All of REST_SOCIAL_OAUTH_ABSOLUTE_REDIRECT_URI, REST_SOCIAL_DOMAIN_FROM_ORIGIN and REST_SOCIAL_OAUTH_REDIRECT_URI in Django's settings.py are unnecessary. (They are constants used by Django REST Social Auth) In short, you don't have to setup anything related to redirect url in Django. The "redirect_uri": "postmessage" in React frontend suffice. This makes sense because the social auth work you have to do on your side is all Ajax-style POST request in frontend, not submitting any form whatsoever, so actually no redirection occur by default. That's why the redirect url becomes useless if you're using the code + JWT flow, and the server-side redirect url setting is not taking any effect. The Django REST Social Auth handles account creation. This means it'll check the google account email/last first name, and see if it match any account in database. If not, it'll create one for you, using the exact email & first last name. But, the username will be something like youremailprefix717e248c5b924d60 if your email is youremailprefix@example.com. It appends some random string to make a unique username. This is the default behavior, I believe you can customize it and feel free to dig into their documentation. The frontend stores that token and when it has to perform CRUD to the backend server, especially create/delete/update, if you attach the token in your Authorization header and send request to backend, Django backend will now recognize that as a login, i.e. authenticated user. Of course, if your token expire, you have to refresh it by making another request.

我的天啊，我花了6个多小时终于答对了!我想这是我第一次看到这种post - message的东西。任何使用Django + DRF + JWT + Social Auth + React组合的人都肯定会遇到这种情况。我真不敢相信，除了这里的答案，没有一篇文章提到这个。但是如果你正在使用Django + React堆栈，我真的希望这篇文章可以为你节省大量的时间。