Function FromCookie

extractors/extractors.go:220–232

FromCookie creates an Extractor that retrieves a value from a specified cookie in the request. The function: - Retrieves the cookie value using the specified name - Returns ErrNotFound if the cookie is missing Parameters: - key: The name of the cookie from which to extract the value. Returns: A

(key string)

//	// Cookie: "session_id=abc123" -> Output: "abc123"
//	// Missing cookie -> Output: ErrNotFound
func FromCookie(key string) Extractor {
	return Extractor{
		Extract: func(c fiber.Ctx) (string, error) {
			value := c.Cookies(key)
			if value == "" {
				return "", ErrNotFound
			}
			return value, nil
		},
		Key:    key,
		Source: SourceCookie,
	}
}

// FromParam creates an Extractor that retrieves a value from a specified URL parameter in the request.
// URL parameters are extracted from the route path (e.g., /users/:id).