pub fn validate_postal_code(postal_code: &str) -> Result<(), ProxyError>Expand description
Returns Ok(()) when postal_code is a valid operator-supplied
postal / ZIP code, otherwise an
crate::error::ProxyError::InvalidGeoMetadata.
postal_code must be 1-16 characters. The format is per-country
(e.g. "94110" for US ZIP, "SW1A 1AA" for UK, "100-0001" for
Japan); the validator only enforces a length ceiling and rejects
empty strings.