Function FromForm

extractors/extractors.go:303–315

FromForm creates an Extractor that retrieves a value from a specified form field in the request. Form data is typically submitted via POST requests with content-type application/x-www-form-urlencoded. SECURITY WARNING: Extracting values from form data can leak sensitive information through: - Serve

(param string)

//	// Form data: "username=john_doe&password=secret" -> Output: "john_doe"
//	// Missing field -> Output: ErrNotFound
func FromForm(param string) Extractor {
	return Extractor{
		Extract: func(c fiber.Ctx) (string, error) {
			value := c.FormValue(param)
			if value == "" {
				return "", ErrNotFound
			}
			return value, nil
		},
		Key:    param,
		Source: SourceForm,
	}
}

// FromHeader creates an Extractor that retrieves a value from a specified HTTP header in the request.
// HTTP headers are commonly used for API keys, tokens, and other metadata.