Get Client Ip Address #dotnetcore

helper.cs

    public string GetClientIp()
    {
        var httpContext = _httpContextAccessor?.HttpContext;
        if (httpContext == null)
            return null;

        var header = httpContext.Request.Headers["CF-Connecting-IP"].FirstOrDefault()
                     ?? httpContext.Request.Headers["X-Forwarded-For"].FirstOrDefault()
                     ?? httpContext.Request.Headers["HTTP_TRUE_CLIENT_IP"].FirstOrDefault()
                     ?? httpContext.Connection.RemoteIpAddress?.ToString();
        if (IPAddress.TryParse(header, out var ip))
            return ip.ToString();

        return null;
    }