To get the "login_challenge" parameter while using the Get OAuth 2.0 Login Request, you need to make a GET request to the

/admin/oauth2/auth/requests/login

endpoint. The "login_challenge" is a query parameter in this request. Here is the format of the request:

GET /admin/oauth2/auth/requests/login?login_challenge={login_challenge}

Replace

{login_challenge}

with the actual login challenge you have. The "login_challenge" is a string and it is required for this request. This parameter represents the OAuth 2.0 Login Request Challenge. For more details, you can refer to the [Ory API Reference](https://www.ory.sh/docs/hydra/reference/api).

The

login_challenge

parameter is typically generated when a client initiates an OAuth 2.0 or OpenID Connect flow. This challenge is then sent to your application, usually as a URL query parameter. For example, your application might receive a request like

/login?login_challenge=abcde

. In the context of Ory, if you're using Ory Hydra, the

login_challenge

is created when Hydra receives an authorization request from a client. Hydra will then redirect the user's browser to the login endpoint of your application, including the

login_challenge

in the redirect URL. To retrieve the

login_challenge

, your application should extract it from the incoming request URL. The exact method to do this will depend on the programming language and framework you're using in your application. For more details, you can refer to the [Ory API Reference](https://www.ory.sh/docs/reference/api) and [Ory Hydra Documentation](https://www.ory.sh/hydra/docs/implementing-consent).