This article explains how to authenticate your users with Mercado Libre 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 define basic information in the General section: 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: http://auth.mercadolibre.com/authorization
Response type: response_type Value: code
Scope: scope Value: read
State: state
Include ClientID and RedirectURL
Response:
Access code TAG: code
Error description TAG: error_description
URL: https://api.mercadolibre.com/oauth/token
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
Token type TAG: token_type
Expires in TAG: expires_in
User Id TAG: user_id
Refresh Token TAG: refresh_token
Error description TAG: error_description
Validate external token = True
Refresh token URL = leave it empty
URL: https://api.mercadolibre.com/users/me
Method: Get
Header Content type: Content-type Value: application/json;charset=utf-8
Include Acces Token: access_token
Email TAG: email
External ID TAG: id
Name TAG: nickname
First name TAG: first_name
Last name TAG: last_name
URL profile TAG: permalink
Error description TAG: error_description
As of GeneXus 15 Upgrade 11.
GAM - OAuth 2.0 Authentication Type