Throw custom Joi Errors #779
Description
Hi,
That would be nice if Joi could throw custom Joi Errors:
https://github.com/hapijs/joi/blob/master/lib/errors.js#L140
Something in the fashion of:
/**
* Custom Joi Error
*/
function JoiError() {
Error.apply(this, arguments);
this.details = [];
// ...
}
JoiError.prototype = Object.create(Error.prototype);
JoiError.prototype.annotate = function () { /* ... */ }
// And later on...
try {
// Some logic throwing a new JoiError(/* ... */);
// ...
} catch (err if err instanceof JoiError) {
// ...
// Use Joi error details...
} catch (err if err instanceof TypeError) {
// ...
}It would make easier catching/narrowing to Joi-related errors in try {} catch (err) {} blocks as illustrated above. I am using koa and that would come very handy. For now I am testing if the thrown err has a details property which is not exactly future-proof nor elegant...
Or may you have a better suggestion to cast Joi errors only?