validator

package module

Go to main page

Versions in this module

v0

v0.5.0

Sep 2, 2026

v0.4.3

Aug 19, 2026

v0.4.2

Aug 8, 2026

Changes in this version

+ var ErrBindConversion = errors.New("validator: bind conversion failed")

+ var ErrBindTarget = errors.New("validator: bind requires a non-nil pointer to a non-pointer struct")

+ var ErrDuplicateFilter = errors.New("validator: duplicate filter")

+ var ErrDuplicateRule = errors.New("validator: duplicate rule")

+ var ErrInvalidInput = errors.New("validator: invalid input")

+ var ErrInvalidOption = errors.New("validator: invalid option")

+ var ErrInvalidRules = errors.New("validator: invalid rules")

+ var ErrInvalidSignature = errors.New("validator: invalid signature")

+ var ErrNilContext = errors.New("validator: nil context")

+ var ErrRuleEvaluation = errors.New("validator: rule evaluation failed")

+ var ErrRulePanic = errors.New("validator: rule panicked")

+ var ErrValidated = errors.New("validator: validation already ran")

+ var ErrValidationFailed = errors.New("validator: validation failed")

+ func Check[T any]() error

+ type BindError struct

+ Err error

+ Field string

+ Target reflect.Type

+ Value any

+ func (e *BindError) Error() string

+ func (e *BindError) Unwrap() error

type Errors

+ func (e *Errors) Error() string

+ type FallibleRule interface

+ Message func() string

+ Signature func() string

+ Validate func(f *Field) (bool, error)

type Field

+ func (f *Field) Reflect() reflect.Value

+ func (f *Field) Root[T any]() (T, bool)

+ func (f *Field) SiblingValue(name string) (reflect.Value, bool)

+ func (f *Field) Value[T any]() (T, bool)

type FieldRules

+ func Describe[T any]() ([]FieldRules, error)

type Option

+ func WithFallibleRules(rules ...FallibleRule) Option

+ func WithFilters(filters ...Filter) Option

+ func WithRuleFunc(signature string, fn func(*Field) bool, message string) Option

+ func WithRules(rules ...Rule) Option

+ func WithStringRule(signature string, fn func(string, ...string) bool, message string) Option

+ type RuleError struct

+ Err error

+ Field string

+ Rule string

+ func (e *RuleError) Error() string

+ func (e *RuleError) Unwrap() error

+ type RulesError struct

+ Err error

+ Field string

+ func (e *RulesError) Error() string

+ func (e *RulesError) Unwrap() error

type Validation

+ func MustJSON[Bytes ~[]byte | ~string](data Bytes, rules map[string]string) *Validation

+ func MustMap[M ~map[K]V, K comparable, V any](data M, rules map[string]string) *Validation

+ func MustStruct(data any) *Validation

+ func MustValue(value any, rule string) *Validation

+ func MustValues(data url.Values, rules map[string]string) *Validation

+ func Value(value any, rule string) (*Validation, error)

+ func Values(data url.Values, rules map[string]string) (*Validation, error)

+ func (vd *Validation) ValidateAs[T any](ctx context.Context, dst *T) error

type Validator

+ func MustNew(options ...Option) *Validator

+ func New(options ...Option) (*Validator, error)

+ func (v *Validator) CheckType(t reflect.Type) error

+ func (v *Validator) Check[T any]() error

+ func (v *Validator) DescribeType(t reflect.Type) ([]FieldRules, error)

+ func (v *Validator) Describe[T any]() ([]FieldRules, error)

+ func (v *Validator) MustJSON[Bytes ~[]byte | ~string](data Bytes, rules map[string]string) *Validation

+ func (v *Validator) MustMap[M ~map[K]V, K comparable, V any](data M, rules map[string]string) *Validation

+ func (v *Validator) MustStruct(data any) *Validation

+ func (v *Validator) MustValue(value any, rule string) *Validation

+ func (v *Validator) MustValues(data url.Values, rules map[string]string) *Validation

+ func (v *Validator) Value(value any, rule string) (*Validation, error)

+ func (v *Validator) Values(data url.Values, rules map[string]string) (*Validation, error)

v0.4.1

Jul 8, 2026

v0.4.0

Jul 8, 2026

Changes in this version

+ type FieldRules struct

+ Element []RuleInfo

+ Exact bool

+ Index []int

+ Name string

+ Rules []RuleInfo

+ func DescribeRules(data any) ([]FieldRules, error)

+ type RuleInfo struct

+ Args []string

+ Name string

type Validator

+ func (v *Validator) DescribeRules(data any) ([]FieldRules, error)

v0.3.0

Jul 7, 2026

Changes in this version

+ func SetDefault(v *Validator)

v0.2.1

Jul 7, 2026

v0.2.0

Jul 7, 2026

Changes in this version

+ func CheckRules(data any) error

type Errors

+ func AsErrors(err error) (Errors, bool)

+ Items func() []FieldError

type Validator

+ func (v *Validator) CheckRules(data any) error

+ func (v *Validator) RegisterStringFunc(signature string, fn func(value string, args ...string) bool, message string)

v0.1.1

Jul 2, 2026

Changes in this version

type Validation

+ AddMessages func(messages map[string]string) error

v0.1.0

Jul 2, 2026

Changes in this version

+ func IsEmpty(v any) bool

+ func IsEmptyValue(rv reflect.Value) bool

+ func Valid(data any) bool

+ type ErrorRule interface

+ Message func() string

+ PassesE func(f Field) error

+ Signature func() string

+ func ErrorRules() []ErrorRule

+ type Errors interface

+ All func() map[string]map[string]string

+ Has func(field string) bool

+ Messages func(field string) map[string]string

+ One func() string

+ OneFor func(field string) string

+ String func() string

+ type Field interface

+ Attrs func() []string

+ Context func() context.Context

+ Name func() string

+ RootData func() any

+ Sibling func(name string) (Field, bool)

+ Val func() reflect.Value

+ type FieldError struct

+ Field string

+ Message string

+ Params []string

+ Rule string

+ type Filter interface

+ Handle func(val any, args ...string) (any, error)

+ Signature func() string

+ func Filters() []Filter

+ type Option func(*Validator)

+ func WithAttributes(attrs map[string]string) Option

+ func WithMessages(messages map[string]string) Option

+ func WithParallel(minFields int) Option

+ func WithPrivateFieldValidation() Option

+ func WithStrictRequired() Option

+ func WithTagName(name string) Option

+ func WithTagNameFunc(fn TagNameFunc) Option

+ func WithTransformFunc(fn TransformFunc) Option

+ func WithTranslation(messages map[string]string) Option

+ func WithTranslator(fn TranslatorFunc) Option

+ func WithoutBuiltinRules() Option

+ type Rule interface

+ Message func() string

+ Passes func(f Field) bool

+ Signature func() string

+ func Rules() []Rule

+ type TagNameFunc func(field reflect.StructField) string

+ type TransformFunc func(message string) string

+ type TranslatorFunc func(rule string) (string, bool)

+ type Validation interface

+ AddFilters func(field string, filters ...string) error

+ AddRules func(field string, rules ...string) error

+ Bind func(ptr any) error

+ ClearFilters func(field string) error

+ ClearRules func(field string) error

+ Err func() error

+ Errors func() Errors

+ Fails func() bool

+ Filters func() map[string]string

+ RemoveFilters func(field string, filters ...string) error

+ RemoveRules func(field string, rules ...string) error

+ Rules func() map[string]string

+ SafeBind func(ptr any) error

+ Validate func(ctx context.Context)

+ func Any(data any) Validation

+ func JSON(data string, rules map[string]string) Validation

+ func Map(data map[string]any, rules map[string]string) Validation

+ func Struct(data any) Validation

+ func URLValues(data url.Values, rules map[string]string) Validation

+ func Var(value any, rule string) Validation

+ type Validator struct

+ func Default() *Validator

+ func NewValidator(options ...Option) *Validator

+ func (v *Validator) Any(data any) Validation

+ func (v *Validator) JSON(data string, rules map[string]string) Validation

+ func (v *Validator) Map(data map[string]any, rules map[string]string) Validation

+ func (v *Validator) RegisterErrorRule(rule ErrorRule)

+ func (v *Validator) RegisterFilter(f Filter)

+ func (v *Validator) RegisterFunc(signature string, fn func(Field) bool, message string)

+ func (v *Validator) RegisterRule(rule Rule)

+ func (v *Validator) Struct(data any) Validation

+ func (v *Validator) URLValues(data url.Values, rules map[string]string) Validation

+ func (v *Validator) Valid(data any) bool

+ func (v *Validator) Var(value any, rule string) Validation

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL