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Google Authorization

1. Create OAuth Application​

  • Create New Project

Enter Google developer center，Create Project

Google create project page

  • Create Credentials

Google Create Credentials Page

Select OAuth client ID when creating credentials

Google select OAuth

To create an OAuth client ID, you must first configure your consent screen，follow the prompts to operate.

Google consent screen

  • Select User Type as External

Google select user type

Complete by filling in the corresponding information.

Google OAuth screen

  • Create WEB Application

Visit "Credential" - "Create Credential" - "OAuth Client ID" again, select "Web Application", and follow the prompts to fill in the content

Google Create WEB application

After saving the information, the Client ID and Client Secret will pop up

Google OAuth Client ID

Remember the following three pieces of information:

  • Client ID
  • Client Secret
  • Authorized redirect URIs
warning

Important Note

Client secrets can protect the security of your application, so please ensure that it is not leaked！ Also, do not share your client secrets with anyone！！！

2. Integration GAuth​

  • Install GAuth
go get github.com/LeoInnovateLab/gauth
  • import register
import (
  _ "github.com/LeoInnovateLab/gauth/register"
)
  • Create AuthRequest
authRequest, err := gauth.New().
		Source("google").
		ClientId("your_client_id").
		ClientSecret("your_client_secret").
		RedirectUrl("your_callback_url").
		Build()
  • Generate Authorize URL
authorizeUrl, err := authRequest.Authorize(utils.CreateState())

You can use this authorizeUrl to redirect.

3. Authorization​

Authorization result

{
  "data": {
    "uid": "1141681479691234214",
    "username": "[email protected]",
    "nickname": "Leo",
    "avatar": "https://lh3.googleusercontent.com/a/ACg8ocKXtNIpsOKHCoJvFIjAHZU3U76vTcD8CMt2K9LQBh-5Y6pZq-Ui=s96-c",
    "blog": "",
    "company": "",
    "location": "en",
    "email": "[email protected]",
    "remark": "",
    "gender": -1,
    "source": "google",
    "token": {
      "access_token": "ya29.a0AXooCgvThY6MU0w68CfESXcmKt-xxxxxxxxxxx",
      "expire_in": 3598,
      "refresh_token": "",
      "refresh_token_expire_in": 0,
      "uid": "",
      "open_id": "",
      "access_code": "",
      "union_id": "",
      "scope": "https://www.googleapis.com/auth/userinfo.email https://www.googleapis.com/auth/userinfo.profile openid",
      "token_type": "Bearer",
      "id_token": "eyJhbGciOiJSUzI1NiIsImtpZCIasdfzZTU1ODExMWM3YzdhNzVjNWI2NTEzNGQyMmY2M2VlMDA2ZDAiLCJ0eXAiOiJKV1QifQ.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.O2Y0-c4tUcTxW7ay2BkT3L4YI2qy0p9s1J79DXWeiWRS3GtI8PzmYHLc-_QN8Dr49ggPE_mHIL1VdJ7C4U0FxhNEJLbg4KJJIODcdNj09D2llMou8TIc7krPihHeNPU_3Mj-Fs3VS36YIo4Gcked83wXaWOZpeV8QZvvUA37Gqm14dzQ076Y-sOZH2bOhjUkEWP6-4Ymx5cbSwgHtUuuYkjCRvb_Ase9eHTk-3_KczJzT-HzP5uHk-0E8YFwAJhztmDZWA64F8Og-iorsGd524GApX3aSDFzWiBKt0uDbBZ4F5XZFClnTp7DZdzeVkA07-uD9CoXRRBH6adsfas",
      "mac_algorithm": "",
      "mac_key": "",
      "code": "",
      "snapshot_user": false,
      "oauth_token": "",
      "oauth_token_secret": "",
      "user_id": "",
      "screen_name": "",
      "oauth_callback_confirmed": null
    },
    "raw_user_info": "{\n  \"sub\": \"1141681479691234214\",\n  \"name\": \"Leo\",\n  \"given_name\": \"Leo\",\n  \"family_name\": \"test\",\n  \"picture\": \"https://lh3.googleusercontent.com/a/ACg8ocKXtNIpsOKHCoJvFIjAHZU3U76vTcD8CMt2K9LQBh-5Y6pZq-Ui\\u003ds96-c\",\n  \"email\": \"[email protected]\",\n  \"email_verified\": true,\n  \"locale\": \"en\"\n}",
    "snapshot_user": false
  }
}

Demo​

Recommend using GAuth Demo for testing.

  • Fill in the requested App Id and App secrets in .env.demo

  • Then, Start project, visit http://localhost:8080/

Demo