I've been trying to implement Joi in our node application (joi as standalone, not with hapi) and it seems to validate the schema properly but the error is always the same
[ValidationError: value must be an object]
name: 'ValidationError',
details:
[ { message: 'value must be an object',
path: 'value',
type: 'object.base',
context: [Object] } ],
_object:.....
I never get the specifics on which key it failed on and description of why it failed.
this is a sample schema I'm using:
exports.workersSchema =
{
workers: joi.array({
id: joi.string().alphanum(),
wID: joi.object({
idValue: joi.string().alphanum()
}),
person: {
governmentIDs: joi.array({itemID: joi.string().alphanum()}),
legalName: joi.object({
givenName: joi.string(),
middleName: joi.string(),
preferredSalutations: joi.array(
{
salutationCode: {
longName: joi.string()
}
}
),
preferredName: joi.object().keys({
FormattedName: joi.string()
}),
}),
birthDate: joi.string().alphanum()
}
})
}
And this is the json object I'm sending :
{"workers" : [
{
"id" : "",
"wID" : {
"idValue" : ""
},
"person" : {
"governmentIDs":[{
"itemID": "asd"
}],
"legalName":{
"givenName" : "PA",
"middleName" : "",
"preferredSalutations" : [{
"salutationCode" : {
"longName" : ""
}
}],
"preferredName" : {
"FormattedName" : ""
},
"birthDate" : ""
}]
}
What am i doing wrong here? I even tried to follow something on the blog and while the examples were showing detailed info I never got anything besides
"value must be an object"
It validates it correctly but when it sees a misfit value it just gives that error and nothing else.
Also, if you look at the 'wID' section it has a 'idValue' object but when I get rid of the idValue and just put a alphanum right on the wID key, it also passes the validation.
ps. When validating keys that are objects. Do I have to validate it with
key: Joi.object({
a:Joi.string()
})
or can I just do?:
key: {
a:Joi.string()
}
Thank you so much for the help!
I think there's a couple of issues. First of all, make sure that the object you're validating against is indeed an object
with a workers
key. The validation seems to be suggesting that you're not providing an object for this base value (an array perhaps)?
Also in a few instances I think you're using the API incorrectly (e.g. joi.array(...)
is not valid). I've modified your schema to work how I think you intended. If not, post a sample object and I'll amend.
var schema = {
workers: Joi.array().required().includes({
id: Joi.string().alphanum(),
wID: {
idValue: Joi.string().alphanum()
},
person: {
governmentIDs: Joi.array().includes(Joi.string().alphanum()),
legalName: {
givenName: Joi.string(),
middleName: Joi.string(),
preferredSalutations: Joi.array().includes(Joi.string()),
preferredName: {
formattedName: Joi.string()
},
},
birthDate: Joi.string().alphanum()
}
})
};
Here's a valid object for that schema:
var goodExample = {
workers: [
{
id: 'bhdsf78473',
wID: {
idValue: 'idvalue1'
},
person: {
governmentIDs: ['id1', 'id2'],
legalName: {
givenName: 'Johnny',
middleName: 'Michael',
preferredSalutations: ['sir', 'Dr'],
preferredName: {
formattedName: 'Sir Johnny Michael Smith'
}
},
birthDate: '2411986'
}
}
]
};
Here's an invalid one:
var badExample = {
workers: [
{
id: 'bhdsf7^£$%^£$%8473', // Here's the issue
wID: {
},
person: {
governmentIDs: ['id1', 'id2'],
legalName: {
givenName: 'Johnny',
middleName: 'Michael',
preferredSalutations: ['sir', 'Dr'],
preferredName: {
formattedName: 'Sir Johnny Michael Smith'
}
},
birthDate: '2411986'
}
},
],
};
Joi should give nice detailed output for Joi.assert(example, schema);
:
$ node index.js
/.../node_modules/Joi/lib/index.js:121
throw new Error(message + error.annotate());
^
Error: {
"workers": [
{
"wID": {},
"person": {
"governmentIDs": [
"id1",
"id2"
],
"legalName": {
"givenName": "Johnny",
"middleName": "Michael",
"preferredSalutations": [
"sir",
"Dr"
],
"preferredName": {
"formattedName": "Sir Johnny Michael Smith"
}
},
"birthDate": "2411986"
},
"id" [1]: "bhdsf7^£$%^£$%8473"
}
]
}
[1] workers at position 0 fails because id must only contain alpha-numeric characters
at root.assert (/.../node_modules/Joi/lib/index.js:121:19)
at Object.<anonymous> (/.../index.js:57:5)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:929:3
NOTE: This answer is using Joi 5.1.2 (API: https://github.com/hapijs/joi/blob/v5.1.0/README.md). Joi.array().includes()
will be dropped in the next release in favour of Joi.array().items()
The object that you posted is not a valid JavaScript object because it's missing some closing } brackets. Here's the valid version:
var obj = {
"workers" : [{
"id" : "", // <-------- Shouldn't be empty
"wID" : {
"idValue" : ""
},
"person" : {
"governmentIDs":[{
"itemID": "asd"
}],
"legalName":{
"givenName" : "PA",
"middleName" : "",
"preferredSalutations" : [{
"salutationCode" : {
"longName" : ""
}
}],
"preferredName" : {
"FormattedName" : ""
},
},
"birthDate" : ""
}
}]
};
If I validate that with my provided schema, I get the following message (using Joi 5.1.0):
[1] workers at position 0 fails because id is not allowed to be empty