Function PathParam

binder_generic.go:59–71

PathParam extracts and parses a path parameter from the context by name. It returns the typed value and an error if binding fails. Returns ErrNonExistentKey if parameter not found. Empty String Handling: If the parameter exists but has an empty value, the zero value of type T is returned with no

(c *Context, paramName string, opts ...any)

//
// See ParseValue for supported types and options
func PathParam[T any](c *Context, paramName string, opts ...any) (T, error) {
	for _, pv := range c.PathValues() {
		if pv.Name == paramName {
			v, err := ParseValue[T](pv.Value, opts...)
			if err != nil {
				return v, NewBindingError(paramName, []string{pv.Value}, "path value", err)
			}
			return v, nil
		}
	}
	var zero T
	return zero, ErrNonExistentKey
}

// PathParamOr extracts and parses a path parameter from the context by name.
// Returns defaultValue if the parameter is not found or has an empty value.