I want set a custom error message for my custom validation with JOI, but this not work
field: Joi.string()
.required()
.custom((value, helper) => {
if (!isValidField(value)) {
return helper.message({'any.custom': 'This value is Invalid'});
}
return value;
}),
I solved the problem with this code
field: Joi.string()
.required()
.custom((value, helper) => {
if (isValidField(value)) {
return value;
}
return helper.message({ custom: 'This value is Invalid' });
})
found the answer on this link: https://github.com/sideway/joi/issues/2235