403 - Invalid format

A validation error is an error due to invalid client requests.
All validation errors correspond with a 403 HTTP status code.

A validation error occurs when:

Request body is ill-formed
e.g. invalid JSON
Required parameters are missing (either in body or in query string)
e.g. endpoint required a field which is (empty or) not specified in the request
Endpoint validation rules are not matched
e.g. minimum/maximum length constraint doesn't match

VALIDATION ERROR OBJECT

Property	Type	Description
property	string	Request property which originated the error
message	string	Message to the user explaining what happened
verbose	string	Message to the developer futher explaining what happened
code	string enum - `InvalidFormat` - `RequiredField` - `InvalidLength` - `InvalidMinLength` - `InvalidMaxLength` - `InvalidEmailAddress` - `OutOfRange` - `PatternMismatch` - `PrefixMismatch` - `InvalidCharacter` - `MustBeLowerCase` - `MustBeUpperCase`	Machine readable code to handle the error

Example validation error: missing required field

// HTTP status 403
{
	"code": "RequiredField",
  "message": "Cannot be empty",
  "property": "slashtag"
}

Example of validation error: invalid min length

// HTTP status 403
{
  "property": "slashtag",
  "message": "Value cannot be less than 2 characters long",
	"code": "InvalidMinLength",
  "input": "a",
  "minLength": 2
}

Example of validation error: OutOfRange

// HTTP status 403
{
	"property": "regType",
  "message": "Value is not allowed",
  "code": "OutOfRange",
  "input": "cat",
  "range": ["individual", "business"]
}

Following additional properties may appear in validation errors:

Property	Type	Description
input	object	Original input value for `property`
minLength	numerical Positive	Minimum length allowed
maxLength	numerical Strictly positive	Maximum length allowed
length	numerical Strictly positive	Length to match
range	array of objects	Set of allowed values
pattern	string regex	Regex to test the input with
prefix	string	Prefix that input has to match
character	string	Character given in input

Validation error codes

Code	Additional properties	Message	Description
InvalidFormat	none	Invalid format	Generic invalid format error with respect to the `property` value
RequiredField	none	Cannot be empty	Field indicated in `property` was empty or not specified in the request
InvalidLength	input, length	Value cannot be different than `length` characters long	Number of characters of `property` value not matching `length`
InvalidMinLength	input, minLength	Value cannot be less than `minLength` characters long	Value for field indicated in `property` was too short with respect to `minLength`
InvalidMaxLength	input, maxLength	Value cannot be more than `maxLength` characters long	Value for field indicated in `property` was too long with respect to `maxLength`
InvalidEmailAddress	input	Value is not a valid email address	Value for field indicated in `property` was not a valid email address
OutOfRange	input, range	Value is not allowed	Value for field indicated in `property` was not included in `range`
PatternMismatch	input, pattern	Invalid format	Value for field indicated in `property` does not match regex in `pattern`
PrefixMismatch	input, prefix	Prefix mismatch	Prefix of value for field indicated in `property` does not match `prefix`
InvalidCharacter	input, character	Invalid character: '`character`'	Value for field indicated in `property` contains invalid character
MustBeLowerCase	input	Value must be lowercase	Value for field indicated in `property` is not lowercased
MustBeUpperCase	input	Value must be uppercase	Value for field indicated in `property` is not uppercased