bind

package

v1.1.0 Latest Latest Go to latest Published: Apr 30, 2026 License: MIT Imports: 6 Imported by: 0

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type Binder struct {
	// contains filtered or unexported fields
}

Binder populates struct fields from path, query, header, and default sources.

func New() *Binder

New creates an empty Binder.

func (b *Binder) Bind(target any) error

Bind populates struct fields from all registered sources, then applies defaults.

func (b *Binder) BindJSON(target any, data []byte) error

BindJSON unmarshals data into the struct field tagged with body:"json".

func (b *Binder) FromFunc(tag string, fn SourceFunc) *Binder

FromFunc adds a custom source with the given tag name.

func (b *Binder) FromHeader(r *http.Request) *Binder

FromHeader adds an HTTP header source.

func (b *Binder) FromPath(fn SourceFunc) *Binder

FromPath adds a path parameter source.

func (b *Binder) FromQuery(r *http.Request) *Binder

FromQuery adds a query parameter source using the request URL query.

type SourceFunc func(key string) string

SourceFunc extracts a string value by key from a request source.