Based on the OAuth 2.0 Device Authorization Grant specification, the user goes to the user authorization endpoint of the PingFederate authorization server (AS) to complete the authorization process.

Note:

This endpoint accepts the HTTP GET and POST methods.

Endpoint: /as/user_authz.oauth2

The following table describes parameter for this endpoint. The required Content-Type value is application/x-www-form-urlencoded when transmitting via the HTTP POST method.

Parameter Description
user_code

(Optional)

 The value represents the activation code.

Both the request and the response follow the specification.

Sample request
POST /as/user_authz.oauth2 HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Host: www.example.com
...

user_code=QQWP-TJ6B
Subsequent responses
Phase 1: Activation code verification
If the verification request does not include an activation code, PingFederate returns the Connect a device (user code prompt) page, prompting the user to enter the activation code shown by the device.
If the verification request includes an activation code, PingFederate returns to the Connect a device (pre-populated user code prompt) page, prompting the user to confirm the activation code from the verification request matches the activation code shown by the device. PingFederate skips this confirmation step if the Bypass Activation Code Confirmation option is enabled globally or individually for that invoking client.
PingFederate validates the activation code, prompts the user to enter another activation code if it is invalid or moves to the next phase.
Phase 2: Authentication
PingFederate prompts the user to fulfill the authentication requirements based on OAuth grant mapping configurations and authentication policies.
If the user fulfills the authentication requirements, PingFederate moves to the next phase; otherwise it returns an error message to the user.
Phase 3: Authorization
PingFederate returns the Request for Approval page, prompting the user to approve (or deny) the requested scopes. PingFederate skips this step if the Bypass Authorization Approval option is enabled globally or individually for that invoking client and the user has granted authorization for the requested scopes previously.
PingFederate returns the Connect a device (result) page to the user. The message reflects the authorization status.
If the user approves the requested scopes, the next time the device sends a device access token request to PingFederate at its token endpoint, PingFederate returns an access token to the device.
When an error occurs, PingFederate returns 400 Bad Request in response to the device access token request; for example: 
HTTP/1.1 400 Bad Request

...
{"error_description":"Authorization request is denied","error":"access_denied"}
HTTP/1.1 400 Bad Request

...
{"error_description":"Device code not found, expired or invalid","error":"invalid_grant"}
HTTP/1.1 400 Bad Request

...
{"error_description":"The authorization request has expired.","error":"expired_token"}