Feature(s) impacted
The issue impacts the error handling feature in Forest Admin, specifically the display of custom error messages in the UI when using throwValidationError in a Before Create/Update hook for a collection.
Observed behavior
When I throw a custom validation error using context.throwValidationError('Test error !!!') in a Before Create or Before Update hook for the any collection, the server correctly returns the error with my custom message in the response:
{
"errors": [
{
"name": "ValidationError",
"detail": "Test error !!!",
"status": 400
}
]
}
However, the Forest Admin UI does not display my custom message (“Test error !!!”). Instead, it shows a generic message: “An error occurred when trying to create vertical: Unexpected data sent to the server.”
Here is the relevant code for the Before Create hook:
collection.addHook('Before', 'Create', async (context) => {
context.throwValidationError('Test error !!!');
});
I have also tried throwing a standard Error with throw new Error('Test error !!!') to format the error response, but the UI still does not display my custom message.
This functionality was working a week ago, and validation messages were displayed correctly.
Expected behavior
I expect the Forest Admin UI to display my custom error message (“Test error !!!”) when I throw it using context.throwValidationError or throw new Error in the Before Create/Before Update hook. The UI should show the message from the detail field of the server response.
Failure Logs
Here are the server(agent) logs when the error is thrown:
ValidationError: Test error !!!
at InternalHookBeforeCreateContext.throwValidationError (/home/projects/forest-admin-source/node_modules/@forestadmin/datasource-customizer/dist/context/agent-context.js:26:15)
Context
- Project name: test
- Team name: test
- Environment name: development
- Database type: supabase
- Recent changes made on your end if any: added additional validation and noticed that the previous ones (which worked well a week ago) are now broken.
And, if you are self-hosting your agent:
- Agent technology: nodejs
- Agent (forest package) name & version (from your .lock file): “@forestadmin/agent”: “^1.61.1”,
!
