[BUG] Validation Error When Creating Endpoint

[lucasolopes]

Validation Error When Creating Endpoint

json_string_input Must Be Boolean

---

Issue Description

When creating an endpoint via API, the json_string_input field inside settings is incorrectly validated if passed as an integer (0 or 1). This causes the following error:

PluginDaemonBadRequestError: failed to validate settings: setting json_string_input is not a boolean

---

Example Payload Causing Error

{
  "plugin_unique_identifier": "perzeuss/webhook:0.5.0@...",
  "settings": {
    "json_string_input": 0,
    "raw_data_output": 0,
    "explicit_inputs": false,
    ...
  },
  "name": "Test"
}

---

Solution

Pass the fields json_string_input and raw_data_output as boolean values (true or false), not integers (0 or 1). This fixes the issue.

---

Corrected Payload Example

{
  "plugin_unique_identifier": "perzeuss/webhook:0.5.1@...",
  "settings": {
    "json_string_input": false,
    "raw_data_output": false,
    "explicit_inputs": false,
    ...
  },
  "name": "test"
}

---

Request

Please update the plugin validation logic to strictly enforce boolean types for these fields. This will help avoid confusion and prevent API errors.

[perzeuss]

Hi @lucasolopes , thanks for taking the time to report this!

This is a bug in the Dify Plattform and it has been reported here:
langgenius/dify#19622

There is nothing we can do here in this repo to fix the bug.

[perzeuss]

Workaround:
If you’re encountering this issue, it’s likely due to the Dify UI setting incorrect default values for boolean configuration parameters.

To workaround this, manually toggle each boolean option in the UI (for example, switch from false to true and then back to false). This will ensure the correct values are saved and should prevent the internal server error.

Hope this helps! At the moment, I don’t have the time to reverse engineer the bug in the Dify platform, so we’ll need to wait for the maintainers to provide a fix.