Displaying custom error message in Admin UI in Strapi 4.8.x

Questions and Answers
1
System Information
  • Strapi Version: 4.8.2

Hello,

in Strapi v4.7.x I could display a custom error message in the Admin UI by throwing an ApplicationError:

throw new utils.errors.ApplicationError(`Custom error message`);

In Strapi v4.8.2 this doesn’t work anymore. The above code results in a generic error message (e.g. “Warning: Request failed with status code 400”).

In the response I can still see the custom error message:

error: {
    status:		400
    name:		"ApplicationError"
    message:	"Custom error message"
    details:	{ ... }
}

How can I display this custom error message in Strapi v4.8.?

Thank and best regards

2

Nvm, it was fixed in Strapi v4.8.3 right away: useAPIErrorHandler: Reverse error handling (API -> Axios) by gu-stav · Pull Request #16162 · strapi/strapi · GitHub

3

Problem is here again. Just upgraded to latest Strapi v4.10.6.

package.json

    "@strapi/strapi": "4.10.6",
    "@strapi/plugin-users-permissions": "4.10.6",
    "@strapi/provider-email-sendgrid": "4.10.6",
    "@strapi/provider-upload-cloudinary": "4.10.6"

Code:
throw new utils.errors.ApplicationError("Custom error message");

Network shows:

{
"data":null,
"error":{
 "status":400,
 "name":"ApplicationError",
 "message":"Custom error message",
 "details":{}
 }
}

But UI shows: “Warning: Request failed with status code 400” 🥲

4

@Mehoff are you able to fix this error?

5

I got the solution-
just install the @strapi/utils package and then its working fine

6

@Abhinegi2
I just tried it with v4.11.1 after installing @strapi/utils package but it is not working for me. In the Admin UI it shows internal server error.

7

I’m on v4.13.1 and its still not working. Would be happy if this gets fixed. @DMehaffy any news on that maybe?