javalin-security-api-key/io.github.mzlnk.javalin.security.apikey/ApiKeyResolver/Companion/header

header

@JvmStatic
@JvmOverloads
fun header(headerName: String = "X-Api-Key"): ApiKeyResolver

Extracts the API key from headerName (defaults to X-Api-Key).

The header value is trimmed and used as-is. Returns null when the header is absent or blank.