Joi: Optional string is not allowed to be empty
The next string returns error "value" is not allowed to be empty
Joi.validate('', Joi.string().optional())
Is that a normal behaviour? If yes - than how to allow empty?
support
Volodymyr128
All 6 comments
Yes and it's documented https://github.com/hapijs/joi/blob/master/API.md#string.
Marsup
on 14 Oct 2015
😕3
this does not allow a null value. To do that, use any.allow(value). Or both!
WELDISSON
on 17 Jan 2019
check this if you want to allow empty string , by default joi not allow empty string :
Joi.validate('', Joi.string().allow(''))
it will work for you .
ElagrebiAli
on 30 Jan 2019
❤2
It works thanks ali
ilyaskarim
on 30 Jan 2019
ask at any time.
You are welcome.
ElagrebiAli
on 30 Jan 2019
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Most helpful comment
check this if you want to allow empty string , by default joi not allow empty string :
Joi.validate('', Joi.string().allow(''))
it will work for you .