Invalid structure generated response from Kratos, error is swallowed

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Ory Network Project

No response

Describe the bug

There is a bug in the Kratos Golang client, where the oneOf(UiNodeAttributes) is always multiple because they all have node_type This error is being returned https://github.com/ory/kratos-client-go/blob/e9aeb0ece9b90a58659db5287a7d4b895d493209/model_ui_node_attributes.go#L141

This error is discarded too because it swallowed here https://github.com/ory/kratos-client-go/blob/e9aeb0ece9b90a58659db5287a7d4b895d493209/model_ui_node.go#L202-L204

Reproducing the bug

package main

import (
	"encoding/json"
	kratos "github.com/ory/kratos-client-go"
	"log"
)

var data = []byte(`{
  "id": "f616cef9-d05b-45ee-aa15-df3e43aadcc6",
  "type": "browser",
  "expires_at": "2024-02-13T15:25:28.317672Z",
  "issued_at": "2024-02-13T15:15:28.317672Z",
  "request_url": "[REDACTED]",
  "return_to": "[REDACTED]",
  "ui": {
    "action": "[REDACTED]/.ory/kratos/public/self-service/login?flow=f616cef9-d05b-45ee-aa15-df3e43aadcc6",
    "method": "POST",
    "nodes": [
      {
        "type": "input",
        "group": "default",
        "attributes": {
          "name": "csrf_token",
          "type": "hidden",
          "value": "0rDQ4YfJvOHPgeedwcI6ySPHM9vXWntmu9aYS9iIDLfvk0xVdyMwidYFWk7TP/9U7nkZ2pW3gi4IaS7x/XV7/g==",
          "required": true,
          "disabled": false,
          "node_type": "input"
        },
        "messages": [],
        "meta": {}
      },
      {
        "type": "input",
        "group": "default",
        "attributes": {
          "name": "identifier",
          "type": "text",
          "value": "",
          "required": true,
          "disabled": false,
          "node_type": "input"
        },
        "messages": [],
        "meta": {
          "label": {
            "id": 1070004,
            "text": "ID",
            "type": "info"
          }
        }
      },
      {
        "type": "input",
        "group": "password",
        "attributes": {
          "name": "password",
          "type": "password",
          "required": true,
          "autocomplete": "current-password",
          "disabled": false,
          "node_type": "input"
        },
        "messages": [],
        "meta": {
          "label": {
            "id": 1070001,
            "text": "Password",
            "type": "info"
          }
        }
      },
      {
        "type": "input",
        "group": "password",
        "attributes": {
          "name": "method",
          "type": "submit",
          "value": "password",
          "disabled": false,
          "node_type": "input"
        },
        "messages": [],
        "meta": {
          "label": {
            "id": 1010001,
            "text": "Sign in",
            "type": "info",
            "context": {}
          }
        }
      }
    ]
  },
  "created_at": "2024-02-13T15:15:28.322643Z",
  "updated_at": "2024-02-13T15:15:28.322643Z",
  "refresh": false,
  "requested_aal": "aal1"
}`)

func main() {
	var parsed *kratos.LoginFlow
	if err := json.Unmarshal(data, &parsed); err != nil {
		log.Fatalf("unable to parse %s", err)
	}

	for _, v := range parsed.Ui.Nodes {
		log.Printf("%+v\n", v.Attributes)
	}
}

Relevant log output

2024/02/13 15:39:38 {UiNodeAnchorAttributes:<nil> UiNodeImageAttributes:<nil> UiNodeInputAttributes:<nil> UiNodeScriptAttributes:<nil> UiNodeTextAttributes:<nil>}
2024/02/13 15:39:38 {UiNodeAnchorAttributes:<nil> UiNodeImageAttributes:<nil> UiNodeInputAttributes:<nil> UiNodeScriptAttributes:<nil> UiNodeTextAttributes:<nil>}
2024/02/13 15:39:38 {UiNodeAnchorAttributes:<nil> UiNodeImageAttributes:<nil> UiNodeInputAttributes:<nil> UiNodeScriptAttributes:<nil> UiNodeTextAttributes:<nil>}
2024/02/13 15:39:38 {UiNodeAnchorAttributes:<nil> UiNodeImageAttributes:<nil> UiNodeInputAttributes:<nil> UiNodeScriptAttributes:<nil> UiNodeTextAttributes:<nil>}

### Relevant configuration

_No response_

### Version

`require github.com/ory/kratos-client-go v1.0.0`

### On which operating system are you observing this issue?

None

### In which environment are you deploying?

None

### Additional Context

_No response_

Start with model_ui_node_attributes.go at the referenced oneOf handling and model_ui_node.go around lines 202-204, then run the provided Go JSON-unmarshal reproduction. Done means the Kratos client correctly populates the input attributes for these nodes and does not discard the relevant parsing error.