structs

Documentation

Index

• Variables
• func GetFieldTagValue(targetStruct interface{}, fieldName string, tagName string) (string, error)

Variables

var (
	// ErrFieldNotFound is returned when an operation is unable to find a target field.
	ErrFieldNotFound = errors.New("struct field not found")
)

Functions

func GetFieldTagValue

func GetFieldTagValue(targetStruct interface{}, fieldName string, tagName string) (string, error)

GetFieldTagValue gets a tag value from a struct field. The tag is always returned as a string, independent of field type.

Example ```

s := Struct{
    Value int `default:"100" validate:"required"`
}{}

// Get the Value field default value tag := GetFieldTagValue(s, "Value", "default")

// Prints 100 fmt.Println(tag) ```