No, it is not possible to complete a login flow with Ory Kratos using a

GET

request with query parameters. The login flow must be completed using a

POST

request to the

/self-service/login

endpoint. This is clearly specified in the documentation and API references: - The endpoint to complete a login flow is

POST /self-service/login

. The API expects the login data (such as credentials and CSRF token) to be sent in the request body, either as

application/json

or

application/x-www-form-urlencoded

for browser flows. The response behavior (redirect or JSON) depends on the request headers and content type, but the method must be

POST

 [Kratos API Reference](https://raw.githubusercontent.com/ory/kratos/master/spec/api.json), [Submit flows](https://www.ory.sh/docs/kratos/bring-your-own-ui/custom-ui-basic-integration#submit-flows). - The use of

GET

with query parameters is not supported for submitting user credentials or completing the login flow.

GET

is only used to initialize or fetch the state of a flow, not to submit sensitive data. - The 303 redirect behavior is used by Kratos to redirect the browser to the login UI or to the post-login URL after a successful

POST

submission, but not to submit the login credentials themselves. The actual submission of credentials must always be a

POST

 [Kratos API Reference](https://raw.githubusercontent.com/ory/kratos/master/spec/api.json). In summary, you cannot use a

GET

request with query parameters to complete a login flow; you must use a

POST

request with the required data in the body.