public static string UpdateLambdaFunction(string functionName, string javaScript) { var ms = new MemoryStream(); File.WriteAllText(Properties.Settings.Default.RuleFilePath, javaScript); using (var zipArchive = new ZipArchive(ms, ZipArchiveMode.Create, true)) { zipArchive.CreateEntryFromFile(Properties.Settings.Default.IndexFilePath, Path.GetFileName(Properties.Settings.Default.IndexFilePath), CompressionLevel.Fastest); zipArchive.CreateEntryFromFile(Properties.Settings.Default.RuleFilePath, Path.GetFileName(Properties.Settings.Default.RuleFilePath), CompressionLevel.Fastest); } string responseText; try { var client = new AmazonLambdaClient(Properties.Settings.Default.AwsAccessKeyId, Properties.Settings.Default.AwsSecretKey, Amazon.RegionEndpoint.USEast1); var response = client.UpdateFunctionCode(new UpdateFunctionCodeRequest { FunctionName = functionName, Publish = false, ZipFile = ms }); responseText = response.ToString(); } catch (Exception ex) { responseText = ex.ToString(); } return(responseText); }