Warning: This sample shows how to use GAM with LinkedIn as an external OAuth 2.0 provider. GeneXus does not support the configuration of this external system. Samples, screenshots, parameters, and/or locations may change over time.
This article explains how to authenticate your users with LinkedIn using GeneXus Access Manager (GAM).
1. Enter to the GAM's Backend and go to the Authentication Types section. Create a new OAuth 2.0 Authentication Type and in General section define basic information like: Name, Description, Images (optional), etc.
2. In the Configuration section you need to define the following for the General, Authorization, Token and User Information tab:
Client ID: client_id Value: <clientid>
Client Secret: client_secret Value: <clientsecret>
Redirect URL: redirect_uri Value: https://<server>/webapp
URL: https://www.linkedin.com/oauth/v2/authorization
Response type: response_type Value: code
Scope: scope Value: r_emailaddress+r_liteprofile
State: state
Include ClientID and RedirectURL
Response:
Access code TAG: code
Error description TAG: error_description
URL: https://www.linkedin.com/oauth/v2/accessToken
Header Cotent type: Content-type Value: application/x-www-form-urlencoded
Grant type: grant_type Value: authorization_code
Include All
Response:
Access token TAG: access_token
Expires in TAG: expires_in
Refresh Token TAG: Not available for this Provider. When the token expires, it cannot be refreshed.
Error description TAG: error_description
Validate external token = True // When the token expires, the GAM session ends.
Refresh token URL = leave it empty. Uses the same URL used to ask for a Token.
URL: https://api.linkedin.com/v1/people/~:(id,email-address,first-name,last-name,headline,picture-url)
Method: Get
Header Content type: Content-type Value: application/json;charset=utf-8
NOTHING is included
Additional parameters: format=json
Email TAG: emailAddress
External ID TAG: id
Name TAG: emailAddress
First name TAG: firstName
Last name TAG: lastname
URL image TAG: pictureUrl
Error description TAG: error_description
3. Click on the following link to see LinkedIn documentation about OAuth 2.0 protocol, and more information about the configuration.
As of GeneXus 15 Upgrade 11.
GAM - OAuth 2.0 Authentication Type