To access the authentication method used by a user in a registration webhook, you need to examine the

method

field in the webhook payload. This field indicates which authentication method was used during registration. According to the [Ory API Reference](https://www.ory.sh/docs/reference/api), the

method

field can have different values depending on the authentication method used: -

"password"

for password-based registration -

"oidc"

for OpenID Connect registration -

"webauthn"

for WebAuthn registration -

"code"

for code-based registration -

"passkey"

for passkey registration When setting up your webhook, you can configure it to receive this information. Here's an example of how you might structure your webhook configuration:

yaml registration:   after:     hooks:       - hook: web_hook         config:           url: "<https://your-webhook-endpoint.com>"           method: "POST"           body: "<base64://your-jsonnet-template>"

In your Jsonnet template, you can access the

method

field to determine which authentication method was used. For example:

jsonnet function(ctx) {   method: ctx.flow.active,   // Other fields you want to include }

Remember that the exact structure of the webhook payload may vary depending on your Ory configuration and the specific version you're using. Always refer to the most up-to-date [Ory documentation](https://www.ory.sh/docs/) for the precise payload structure and available fields.