Error Messsage for 'discriminated union' DB update
Hey!
I try to insert into a table with discriminated union, and the error details are missing from the log.
Anything I can do about it?
The log only show the object validated and the validator definition, and I see no difference between them.
10 Replies
Thanks for posting in <#1088161997662724167>.
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Thank you!
Please share more details. The logs you're seeing would be good, as well as snippets from the related code.
BTW, is this the "small question" that somehow didn't appear in your other thread?
@Clever Tagline Which other thread?
oops, mistake 🙂
No worries. I'll delete the post to avoid confusion.
Thanks, anyway:
I see "Value does not match validator." error message when inserting into a table of union type, just like this one: https://docs.convex.dev/database/schemas#unions
The message regarding which path fails does not appear.
So the first question is, can I make the error more verbose? This is even more important for me than fixing the error itself, because I try to debug it for an hour.
I don't think so. If it's a validation error, I don't believe that there's a way to intercept that and provide more detail.
The best you can do is add an issue to the Convex repo asking for more verbose validation errors, but that won't help your current problem.
The value exist somewhere, the validator and value are printed, so I run them together locally
I will open an issue.
Anyway, looks like Convex validator is really bugy when working with unions... will provide an example.
import { v } from 'convex/values';
import { validate } from 'convex-helpers/validators';
const value = {
status: 'complete',
wrongField: 'a'
};
const validator = v.union(
v.object({ status: v.literal('initialized'), updatedAt: v.float64() }),
v.object({
status: v.literal('loading'),
work: v.optional(v.string())
}),
v.object({
status: v.literal('complete'),
content: v.string()
}),
v.object({ status: v.literal('error'), errorMessage: v.string() })
);
validate(validator, value, { throw: true, allowUnknownFields: true });
ValidationError: Validator error for status: Expected
error, got "complete"
expected: "error",
got: ""complete"",
path: "status",
This is a wrong error message...
@Clever Tagline Ok, I 100% the problem, I try to update an object with it's _id, _creationTime and the validator throws becaues "allowUnknownFields" is set to 'false' by Convex, and I think there's no way to change that. The second problem is a bug: the error message thrown is not related to the problem. That's a bug in the validator.Yeah, definitely open an issue for that second problem.
As for the first, could you share a more detailed example of the code that's trying to perform the update?