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ViewsPass two values to custom validation with express-validation
I need to receive two values to search for a subdocument using the main ID of the document and then another ID of the subdocument.
I receive these ID's by the parameters and using express-validator I am using a custom function to verify that they exist in this way:
router.put('/:id/item/:idItem',
[
check('id','idItem').custom( idItemExists )
],
validation,
updateItem
);
And in my function called idItemExists() I try to receive both values but the second value, when passed to the console, returns everything that comes from the request:
let idItemExists = async ( id, idItem ) => {
console.log(idItem);
}
In this case I need to be able to receive both values correctly in order to validate if both IDs are correct.
Thanks a lot.
1 answers
Answer question0
this will not work since .custom takes a function that receives the value of the field being validated, as well as the express request, the location and the field path as mentioned in their docs.
validator(value, { req, location, path })
in your case you're trying to log the object that contains the req, location and the path.
in order to get both values inside a custom validator you could do the following:
param() // when we omit fields, then we're getting all fields inside req.params
.custom(params => { // here we ignore the second parameter { req, location, path }
console.log(params) // { id: '10', idItem: '20' }
})