I am having trouble trying to validate a JSON file, to be more specific I am having trouble with a when condition.
I have a a key that has to be a past date, and isn't required. Then I have a b key that should be an url and if a is null/empty, b can be empty, otherwise must be required.
I'll leave my code below to make it clear, but right now I'm not getting any error if b is null but a isn't.
a: Joi.date().less("now").raw().optional().allow(null, ""),
b: Joi.string()
.uri({ scheme: [/https?/] })
.when("a", {
is: Joi.any().empty(),
then: Joi.optional().allow(null, ""),
otherwise: Joi.required(),
}),
Found the solution, my is condition was wrong.
Instead of using is: Joi.any().empty() I put is: Joi.any().valid(null, "") and it worked.
So the solution is this:
a: Joi.date().less("now").raw().optional().allow(null, ""),
b: Joi.string()
.uri({ scheme: [/https?/] })
.when("a", {
is: Joi.any().valid(null, ""),
then: Joi.optional().allow(null, ""),
otherwise: Joi.required(),
}),