# AWS SDK 또는 CLI와 함께 `UpdateFunctionCode` 사용
<a name="example_lambda_UpdateFunctionCode_section"></a>

다음 코드 예시는 `UpdateFunctionCode`의 사용 방법을 보여 줍니다.

작업 예제는 대규모 프로그램에서 발췌한 코드이며 컨텍스트에 맞춰 실행해야 합니다. 다음 코드 예제에서는 컨텍스트 내에서 이 작업을 확인할 수 있습니다.
+  [기본 사항 알아보기](example_lambda_Scenario_GettingStartedFunctions_section.md) 

------
#### [ .NET ]

**SDK for .NET**  
 GitHub에 더 많은 내용이 있습니다. [AWS 코드 예제 리포지토리](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv3/Lambda#code-examples)에서 전체 예제를 확인하고 설정 및 실행하는 방법을 알아보세요.

```
    /// <summary>
    /// Update an existing Lambda function.
    /// </summary>
    /// <param name="functionName">The name of the Lambda function to update.</param>
    /// <param name="bucketName">The bucket where the zip file containing
    /// the Lambda function code is stored.</param>
    /// <param name="key">The key name of the source code file.</param>
    /// <returns>Async Task.</returns>
    public async Task UpdateFunctionCodeAsync(
        string functionName,
        string bucketName,
        string key)
    {
        var functionCodeRequest = new UpdateFunctionCodeRequest
        {
            FunctionName = functionName,
            Publish = true,
            S3Bucket = bucketName,
            S3Key = key,
        };

        var response = await _lambdaService.UpdateFunctionCodeAsync(functionCodeRequest);
        Console.WriteLine($"The Function was last modified at {response.LastModified}.");
    }
```
+  API 세부 정보는 *AWS SDK for .NET API 참조*의 [UpdateFunctionCode](https://docs.aws.amazon.com/goto/DotNetSDKV3/lambda-2015-03-31/UpdateFunctionCode)를 참조하십시오.

------
#### [ C\$1\$1 ]

**SDK for C\$1\$1**  
 GitHub에 더 많은 내용이 있습니다. [AWS 코드 예제 리포지토리](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/lambda#code-examples)에서 전체 예제를 확인하고 설정 및 실행하는 방법을 알아보세요.

```
        Aws::Client::ClientConfiguration clientConfig;
        // Optional: Set to the AWS Region in which the bucket was created (overrides config file).
        // clientConfig.region = "us-east-1";

    Aws::Lambda::LambdaClient client(clientConfig);

        Aws::Lambda::Model::UpdateFunctionCodeRequest request;
        request.SetFunctionName(LAMBDA_NAME);
        std::ifstream ifstream(CALCULATOR_LAMBDA_CODE.c_str(),
                               std::ios_base::in | std::ios_base::binary);
        if (!ifstream.is_open()) {
            std::cerr << "Error opening file " << INCREMENT_LAMBDA_CODE << "." << std::endl;

#if USE_CPP_LAMBDA_FUNCTION
            std::cerr
                    << "The cpp Lambda function must be built following the instructions in the cpp_lambda/README.md file. "
                    << std::endl;
#endif
            deleteLambdaFunction(client);
            deleteIamRole(clientConfig);
            return false;
        }

        Aws::StringStream buffer;
        buffer << ifstream.rdbuf();
        request.SetZipFile(
                Aws::Utils::ByteBuffer((unsigned char *) buffer.str().c_str(),
                                       buffer.str().length()));
        request.SetPublish(true);

        Aws::Lambda::Model::UpdateFunctionCodeOutcome outcome = client.UpdateFunctionCode(
                request);

        if (outcome.IsSuccess()) {
            std::cout << "The lambda code was successfully updated." << std::endl;
        }
        else {
            std::cerr << "Error with Lambda::UpdateFunctionCode. "
                      << outcome.GetError().GetMessage()
                      << std::endl;
        }
```
+  API 세부 정보는 **AWS SDK for C\$1\$1 API 참조의 [UpdateFunctionCode](https://docs.aws.amazon.com/goto/SdkForCpp/lambda-2015-03-31/UpdateFunctionCode)를 참조하십시오.

------
#### [ CLI ]

**AWS CLI**  
**Lambda 함수 코드 업데이트**  
다음 `update-function-code` 예시에서는 `my-function` 함수의 게시되지 않은 (\$1LATEST) 버전 코드를 지정된 zip 파일의 콘텐츠로 바꿉니다.  

```
aws lambda update-function-code \
    --function-name  my-function \
    --zip-file fileb://my-function.zip
```
출력:  

```
{
    "FunctionName": "my-function",
    "LastModified": "2019-09-26T20:28:40.438+0000",
    "RevisionId": "e52502d4-9320-4688-9cd6-152a6ab7490d",
    "MemorySize": 256,
    "Version": "$LATEST",
    "Role": "arn:aws:iam::123456789012:role/service-role/my-function-role-uy3l9qyq",
    "Timeout": 3,
    "Runtime": "nodejs10.x",
    "TracingConfig": {
        "Mode": "PassThrough"
    },
    "CodeSha256": "5tT2qgzYUHaqwR716pZ2dpkn/0J1FrzJmlKidWoaCgk=",
    "Description": "",
    "VpcConfig": {
        "SubnetIds": [],
        "VpcId": "",
        "SecurityGroupIds": []
    },
    "CodeSize": 304,
    "FunctionArn": "arn:aws:lambda:us-west-2:123456789012:function:my-function",
    "Handler": "index.handler"
}
```
자세한 내용은 *AWS Lambda 개발자 안내서*의 [AWS Lambda 함수 구성](https://docs.aws.amazon.com/lambda/latest/dg/resource-model.html)을 참조하세요.  
+  API 세부 정보는 *AWS CLI 명령 참조*에서 [UpdateFunctionCode](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/lambda/update-function-code.html)를 참조하세요.

------
#### [ Go ]

**SDK for Go V2**  
 GitHub에 더 많은 내용이 있습니다. [AWS 코드 예제 리포지토리](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/lambda#code-examples)에서 전체 예제를 확인하고 설정 및 실행하는 방법을 알아보세요.

```
import (
	"bytes"
	"context"
	"encoding/json"
	"errors"
	"log"
	"time"

	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/service/lambda"
	"github.com/aws/aws-sdk-go-v2/service/lambda/types"
)

// FunctionWrapper encapsulates function actions used in the examples.
// It contains an AWS Lambda service client that is used to perform user actions.
type FunctionWrapper struct {
	LambdaClient *lambda.Client
}



// UpdateFunctionCode updates the code for the Lambda function specified by functionName.
// The existing code for the Lambda function is entirely replaced by the code in the
// zipPackage buffer. After the update action is called, a lambda.FunctionUpdatedV2Waiter
// is used to wait until the update is successful.
func (wrapper FunctionWrapper) UpdateFunctionCode(ctx context.Context, functionName string, zipPackage *bytes.Buffer) types.State {
	var state types.State
	_, err := wrapper.LambdaClient.UpdateFunctionCode(ctx, &lambda.UpdateFunctionCodeInput{
		FunctionName: aws.String(functionName), ZipFile: zipPackage.Bytes(),
	})
	if err != nil {
		log.Panicf("Couldn't update code for function %v. Here's why: %v\n", functionName, err)
	} else {
		waiter := lambda.NewFunctionUpdatedV2Waiter(wrapper.LambdaClient)
		funcOutput, err := waiter.WaitForOutput(ctx, &lambda.GetFunctionInput{
			FunctionName: aws.String(functionName)}, 1*time.Minute)
		if err != nil {
			log.Panicf("Couldn't wait for function %v to be active. Here's why: %v\n", functionName, err)
		} else {
			state = funcOutput.Configuration.State
		}
	}
	return state
}
```
+  API 세부 정보는 **AWS SDK for Go API 참조의 [UpdateFunctionCode](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/lambda#Client.UpdateFunctionCode)를 참조하세요.

------
#### [ Java ]

**SDK for Java 2.x**  
 GitHub에 더 많은 내용이 있습니다. [AWS 코드 예제 리포지토리](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/lambda#code-examples)에서 전체 예제를 확인하고 설정 및 실행하는 방법을 알아보세요.

```
    /**
     * Updates the code for an AWS Lambda function.
     *
     * @param awsLambda  the AWS Lambda client
     * @param functionName the name of the Lambda function to update
     * @param bucketName the name of the S3 bucket where the function code is located
     * @param key the key (file name) of the function code in the S3 bucket
     * @throws LambdaException if there is an error updating the function code
     */
    public static void updateFunctionCode(LambdaClient awsLambda, String functionName, String bucketName, String key) {
        try {
            LambdaWaiter waiter = awsLambda.waiter();
            UpdateFunctionCodeRequest functionCodeRequest = UpdateFunctionCodeRequest.builder()
                .functionName(functionName)
                .publish(true)
                .s3Bucket(bucketName)
                .s3Key(key)
                .build();

            UpdateFunctionCodeResponse response = awsLambda.updateFunctionCode(functionCodeRequest);
            GetFunctionConfigurationRequest getFunctionConfigRequest = GetFunctionConfigurationRequest.builder()
                .functionName(functionName)
                .build();

            WaiterResponse<GetFunctionConfigurationResponse> waiterResponse = waiter
                .waitUntilFunctionUpdated(getFunctionConfigRequest);
            waiterResponse.matched().response().ifPresent(System.out::println);
            System.out.println("The last modified value is " + response.lastModified());

        } catch (LambdaException e) {
            System.err.println(e.getMessage());
            System.exit(1);
        }
    }
```
+  API 세부 정보는 *AWS SDK for Java 2.x API 참조*의 [UpdateFunctionCode](https://docs.aws.amazon.com/goto/SdkForJavaV2/lambda-2015-03-31/UpdateFunctionCode)를 참조하십시오.

------
#### [ JavaScript ]

**SDK for JavaScript (v3)**  
 GitHub에 더 많은 내용이 있습니다. [AWS 코드 예제 리포지토리](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/lambda#code-examples)에서 전체 예제를 확인하고 설정 및 실행하는 방법을 알아보세요.

```
const updateFunctionCode = async (funcName, newFunc) => {
  const client = new LambdaClient({});
  const code = await readFile(`${dirname}../functions/${newFunc}.zip`);
  const command = new UpdateFunctionCodeCommand({
    ZipFile: code,
    FunctionName: funcName,
    Architectures: [Architecture.arm64],
    Handler: "index.handler", // Required when sending a .zip file
    PackageType: PackageType.Zip, // Required when sending a .zip file
    Runtime: Runtime.nodejs16x, // Required when sending a .zip file
  });

  return client.send(command);
};
```
+  API 세부 정보는 *AWS SDK for JavaScript API 참조*의 [UpdateFunctionCode](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/lambda/command/UpdateFunctionCodeCommand)를 참조하십시오.

------
#### [ PHP ]

**SDK for PHP**  
 GitHub에 더 많은 내용이 있습니다. [AWS 코드 예제 리포지토리](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/php/example_code/lambda#code-examples)에서 전체 예제를 확인하고 설정 및 실행하는 방법을 알아보세요.

```
    public function updateFunctionCode($functionName, $s3Bucket, $s3Key)
    {
        return $this->lambdaClient->updateFunctionCode([
            'FunctionName' => $functionName,
            'S3Bucket' => $s3Bucket,
            'S3Key' => $s3Key,
        ]);
    }
```
+  API 세부 정보는 **AWS SDK for PHP API 참조의 [UpdateFunctionCode](https://docs.aws.amazon.com/goto/SdkForPHPV3/lambda-2015-03-31/UpdateFunctionCode)를 참조하세요.

------
#### [ PowerShell ]

**Tools for PowerShell V4**  
**예제 1: 지정된 zip 파일에 포함된 새 콘텐츠로 'MyFunction'이라는 함수를 업데이트합니다. C\$1 .NET Core Lambda 함수의 경우 zip 파일에는 컴파일된 어셈블리가 포함되어야 합니다.**  

```
Update-LMFunctionCode -FunctionName MyFunction -ZipFilename .\UpdatedCode.zip
```
**예제 2: 이 예제는 이전 예제와 유사하지만 업데이트된 코드가 포함된 Amazon S3 객체를 사용하여 함수를 업데이트합니다.**  

```
Update-LMFunctionCode -FunctionName MyFunction -BucketName amzn-s3-demo-bucket -Key UpdatedCode.zip
```
+  API 세부 정보는 **AWS Tools for PowerShell Cmdlet 참조(V4)의 [UpdateFunctionCode](https://docs.aws.amazon.com/powershell/v4/reference)를 참조하세요.

**Tools for PowerShell V5**  
**예제 1: 지정된 zip 파일에 포함된 새 콘텐츠로 'MyFunction'이라는 함수를 업데이트합니다. C\$1 .NET Core Lambda 함수의 경우 zip 파일에는 컴파일된 어셈블리가 포함되어야 합니다.**  

```
Update-LMFunctionCode -FunctionName MyFunction -ZipFilename .\UpdatedCode.zip
```
**예제 2: 이 예제는 이전 예제와 유사하지만 업데이트된 코드가 포함된 Amazon S3 객체를 사용하여 함수를 업데이트합니다.**  

```
Update-LMFunctionCode -FunctionName MyFunction -BucketName amzn-s3-demo-bucket -Key UpdatedCode.zip
```
+  API 세부 정보는 *AWS Tools for PowerShell Cmdlet 참조(V5)*의 [UpdateFunctionCode](https://docs.aws.amazon.com/powershell/v5/reference)를 참조하세요.

------
#### [ Python ]

**SDK for Python(Boto3)**  
 GitHub에 더 많은 내용이 있습니다. [AWS 코드 예제 리포지토리](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/lambda#code-examples)에서 전체 예제를 확인하고 설정 및 실행하는 방법을 알아보세요.

```
class LambdaWrapper:
    def __init__(self, lambda_client, iam_resource):
        self.lambda_client = lambda_client
        self.iam_resource = iam_resource


    def update_function_code(self, function_name, deployment_package):
        """
        Updates the code for a Lambda function by submitting a .zip archive that contains
        the code for the function.

        :param function_name: The name of the function to update.
        :param deployment_package: The function code to update, packaged as bytes in
                                   .zip format.
        :return: Data about the update, including the status.
        """
        try:
            response = self.lambda_client.update_function_code(
                FunctionName=function_name, ZipFile=deployment_package
            )
        except ClientError as err:
            logger.error(
                "Couldn't update function %s. Here's why: %s: %s",
                function_name,
                err.response["Error"]["Code"],
                err.response["Error"]["Message"],
            )
            raise
        else:
            return response
```
+  API 세부 정보는 *AWSSDK for Python (Boto3) API 참조*의 [UpdateFunctionCode](https://docs.aws.amazon.com/goto/boto3/lambda-2015-03-31/UpdateFunctionCode)를 참조하십시오.

------
#### [ Ruby ]

**SDK for Ruby**  
 GitHub에 더 많은 내용이 있습니다. [AWS 코드 예제 리포지토리](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/lambda#code-examples)에서 전체 예제를 확인하고 설정 및 실행하는 방법을 알아보세요.

```
class LambdaWrapper
  attr_accessor :lambda_client, :cloudwatch_client, :iam_client

  def initialize
    @lambda_client = Aws::Lambda::Client.new
    @cloudwatch_client = Aws::CloudWatchLogs::Client.new(region: 'us-east-1')
    @iam_client = Aws::IAM::Client.new(region: 'us-east-1')
    @logger = Logger.new($stdout)
    @logger.level = Logger::WARN
  end

  # Updates the code for a Lambda function by submitting a .zip archive that contains
  # the code for the function.
  #
  # @param function_name: The name of the function to update.
  # @param deployment_package: The function code to update, packaged as bytes in
  #                            .zip format.
  # @return: Data about the update, including the status.
  def update_function_code(function_name, deployment_package)
    @lambda_client.update_function_code(
      function_name: function_name,
      zip_file: deployment_package
    )
    @lambda_client.wait_until(:function_updated_v2, { function_name: function_name }) do |w|
      w.max_attempts = 5
      w.delay = 5
    end
  rescue Aws::Lambda::Errors::ServiceException => e
    @logger.error("There was an error updating function code for: #{function_name}:\n #{e.message}")
    nil
  rescue Aws::Waiters::Errors::WaiterFailed => e
    @logger.error("Failed waiting for #{function_name} to update:\n #{e.message}")
  end
```
+  API 세부 정보는 *AWS SDK for Ruby API 참조*의 [UpdateFunctionCode](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/UpdateFunctionCode)를 참조하십시오.

------
#### [ Rust ]

**SDK for Rust**  
 GitHub에 더 많은 내용이 있습니다. [AWS 코드 예제 리포지토리](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/lambda#code-examples)에서 전체 예제를 확인하고 설정 및 실행하는 방법을 알아보세요.

```
    /** Given a Path to a zip file, update the function's code and wait for the update to finish. */
    pub async fn update_function_code(
        &self,
        zip_file: PathBuf,
        key: String,
    ) -> Result<UpdateFunctionCodeOutput, anyhow::Error> {
        let function_code = self.prepare_function(zip_file, Some(key)).await?;

        info!("Updating code for {}", self.lambda_name);
        let update = self
            .lambda_client
            .update_function_code()
            .function_name(self.lambda_name.clone())
            .s3_bucket(self.bucket.clone())
            .s3_key(function_code.s3_key().unwrap().to_string())
            .send()
            .await
            .map_err(anyhow::Error::from)?;

        self.wait_for_function_ready().await?;

        Ok(update)
    }

    /**
     * Upload function code from a path to a zip file.
     * The zip file must have an AL2 Linux-compatible binary called `bootstrap`.
     * The easiest way to create such a zip is to use `cargo lambda build --output-format Zip`.
     */
    async fn prepare_function(
        &self,
        zip_file: PathBuf,
        key: Option<String>,
    ) -> Result<FunctionCode, anyhow::Error> {
        let body = ByteStream::from_path(zip_file).await?;

        let key = key.unwrap_or_else(|| format!("{}_code", self.lambda_name));

        info!("Uploading function code to s3://{}/{}", self.bucket, key);
        let _ = self
            .s3_client
            .put_object()
            .bucket(self.bucket.clone())
            .key(key.clone())
            .body(body)
            .send()
            .await?;

        Ok(FunctionCode::builder()
            .s3_bucket(self.bucket.clone())
            .s3_key(key)
            .build())
    }
```
+  API 세부 정보는 *AWS SDK for Rust API 참조*의 [UpdateFunctionCode](https://docs.rs/aws-sdk-lambda/latest/aws_sdk_lambda/client/struct.Client.html#method.update_function_code)를 참조하십시오.

------
#### [ SAP ABAP ]

**SDK for SAP ABAP API**  
 GitHub에 더 많은 내용이 있습니다. [AWS코드 예 리포지토리](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/lmd#code-examples)에서 전체 예를 찾고 설정 및 실행하는 방법을 배워보세요.

```
    TRY.
        oo_result = lo_lmd->updatefunctioncode(     " oo_result is returned for testing purposes. "
              iv_functionname = iv_function_name
              iv_zipfile = io_zip_file ).

        MESSAGE 'Lambda function code updated.' TYPE 'I'.
      CATCH /aws1/cx_lmdcodesigningcfgno00.
        MESSAGE 'Code signing configuration does not exist.' TYPE 'E'.
      CATCH /aws1/cx_lmdcodestorageexcdex.
        MESSAGE 'Maximum total code size per account exceeded.' TYPE 'E'.
      CATCH /aws1/cx_lmdcodeverification00.
        MESSAGE 'Code signature failed one or more validation checks for signature mismatch or expiration.' TYPE 'E'.
      CATCH /aws1/cx_lmdinvalidcodesigex.
        MESSAGE 'Code signature failed the integrity check.' TYPE 'E'.
      CATCH /aws1/cx_lmdinvparamvalueex.
        MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourceconflictex.
        MESSAGE 'Resource already exists or another operation is in progress.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourcenotfoundex.
        MESSAGE 'The requested resource does not exist.' TYPE 'E'.
      CATCH /aws1/cx_lmdserviceexception.
        MESSAGE 'An internal problem was encountered by the AWS Lambda service.' TYPE 'E'.
      CATCH /aws1/cx_lmdtoomanyrequestsex.
        MESSAGE 'The maximum request throughput was reached.' TYPE 'E'.
    ENDTRY.
```
+  API에 대한 세부 정보는 *AWS SDK for SAP ABAP API 참조*의 [UpdateFunctionCode](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)를 참조하세요.

------
#### [ Swift ]

**SDK for Swift**  
 GitHub에 더 많은 내용이 있습니다. [AWS 코드 예제 리포지토리](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/swift/example_code/lambda/basics#code-examples)에서 전체 예제를 확인하고 설정 및 실행하는 방법을 알아보세요.

```
import AWSClientRuntime
import AWSLambda
import Foundation

        let zipUrl = URL(fileURLWithPath: path)
        let zipData: Data

        // Read the function's Zip file.

        do {
            zipData = try Data(contentsOf: zipUrl)
        } catch {
            throw ExampleError.zipFileReadError
        }

        // Update the function's code and wait for the updated version to be
        // ready for use.

        do {
            _ = try await lambdaClient.updateFunctionCode(
                input: UpdateFunctionCodeInput(
                    functionName: functionName,
                    zipFile: zipData
                )
            )
        } catch {
            return false
        }
```
+  API 세부 정보는 *AWS SDK for Swift API 참조*의 [UpdateFunctionCode](https://sdk.amazonaws.com/swift/api/awslambda/latest/documentation/awslambda/lambdaclient/updatefunctioncode(input:))를 참조하세요.

------

AWS SDK 개발자 가이드 및 코드 예제의 전체 목록은 [AWS SDK에서 Lambda 사용](sdk-general-information-section.md)을 참조하세요. 이 주제에는 시작하기에 대한 정보와 이전 SDK 버전에 대한 세부 정보도 포함되어 있습니다.