Method GetHeader

src/Features/GeoIP/CloudGeoClient.cs:33–43

(HttpContext httpContext, params string[] names)

    }

    private static string GetHeader(HttpContext httpContext, params string[] names)
    {
        foreach (var name in names)
        {
            var value = httpContext.Request.Headers[name].ToString()?.ToUpper() ?? "";
            if (!string.IsNullOrEmpty(value))
                return value;
        }

        return "";
    }
}