Omniauth-wechat-oauth2
Wechat OAuth2 Strategy for OmniAuth 1.0.
You need to get a wechat API key at: http://mp.weixin.qq.com
Wechat oauth2 specification can be found at: http://mp.weixin.qq.com/wiki/index.php?title=网页授权获取用户基本信息
Installation
Add to your Gemfile:
gem "omniauth-wechat-oauth2"Then bundle install.
Usage
Here's an example for adding the middleware to a Rails app in config/initializers/omniauth.rb:
Rails.application.config.middleware.use OmniAuth::Builder do
provider :wechat, ENV["WECHAT_APP_ID"], ENV["WECHAT_APP_SECRET"]
endYou can now access the OmniAuth Wechat OAuth2 URL: /auth/wechat
Configuration
You can configure several options, which you pass in to the provider method via a hash:
-
scope: Default is "snsapi_userinfo". It can either be snsapi_base or snsapi_userinfo. When scope is "snsapi_userinfo", after wechat user is authenticated, app can query userinfo using the acquired access_token.
For devise user, you can set up scope in your devise.rb as following.
config.omniauth :wechat, ENV["WECHAT_APP_ID"], ENV["WECHAT_APP_SECRET"],
:authorize_params => {:scope => "snsapi_base"}Auth Hash
Here's an example of an authentication hash available in the callback by accessing request.env["omniauth.auth"]:
{
:provider => "wechat",
:uid => "123456789",
:info => {
nickname: "Nickname",
sex: 1,
province: "Changning",
city: "Shanghai",
country: "China",
headimgurl: "http://image_url"
},
:credentials => {
:token => "token",
:refresh_token => "another_token",
:expires_at => 7200,
:expires => true
},
:extra => {
:raw_info => {
openid: "openid"
nickname: "Nickname",
sex: 1,
province: "Changning",
city: "Shanghai",
country: "China",
headimgurl: "http://image_url"
}
}
}