validate

package

v0.3.0 Latest Latest Go to latest Published: Aug 25, 2026 License: MIT Imports: 6 Imported by: 0

Details

Valid go.mod file
Redistributable license
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Repository

github.com/krewire/libs

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Documentation ¶

Overview ¶

Package validate validates structs using rules declared in `validate` struct tags. It is framework-agnostic and stdlib-only, so the web and CLI layers can share one rule model.

Index ¶

func Field(value any, tag string) error
func Struct(v any) error
type FieldError
- func (e FieldError) Error() string
type ValidationError
- func (e *ValidationError) Error() string
- func (e *ValidationError) Is(target error) bool

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Field ¶

func Field(value any, tag string) error

Field validates a single value against a rule set, as used for scalar checks. It returns nil when the value passes and a *ValidationError otherwise.

func Struct ¶

func Struct(v any) error

Struct validates v (a struct or pointer to a struct) against its `validate` tags. It returns nil when every rule passes, a *ValidationError collecting the first failure per field, or a wrapped error for malformed tags.

Types ¶

type FieldError ¶

type FieldError struct {
	Field string
	Value any
	Rule  string
}

FieldError describes a single validation failure.

func (FieldError) Error ¶

func (e FieldError) Error() string

type ValidationError ¶

type ValidationError struct {
	Fields []FieldError
}

ValidationError aggregates one or more field failures.

func (*ValidationError) Error ¶

func (e *ValidationError) Error() string

func (*ValidationError) Is ¶

func (e *ValidationError) Is(target error) bool

Source Files ¶

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