Amazon Web Services
docs.aws.amazon.com › aws lambda › developer guide › building lambda functions with java › java sample applications for aws lambda
Java sample applications for AWS Lambda - AWS Lambda
– A Java function that illustrates how to use a Lambda layer to package dependencies separate from your core function code. ... – An example that shows how to set up a typical Spring Boot application in a managed Java runtime with and without SnapStart, or as a GraalVM native image with ...
Baeldung
baeldung.com › home › cloud › a basic aws lambda example with java
A Basic AWS Lambda Example With Java |Baeldung
April 17, 2025 - AWSTemplateFormatVersion: '2010-09-09' Description: Lambda function deployment with Java 21 runtime Parameters: LambdaHandler: Type: String Description: The handler for the Lambda function S3BucketName: Type: String Description: The name of the S3 bucket containing the Lambda function JAR file S3Key: Type: String Description: The S3 key (file name) of the Lambda function JAR file Resources: BaeldungLambdaFunction: Type: AWS::Lambda::Function Properties: FunctionName: baeldung-lambda-function Handler: !Ref LambdaHandler Role: !GetAtt LambdaExecutionRole.Arn Code: S3Bucket: !Ref S3BucketName S3K
Does anybody use Spring Boot with AWS Lambda? Do you recommend it?
IMHO you really should not be using Spring Boot for Lambda's. Spring is designed for long running services. Lambda's are literally functions that get called and then are gone. Different paradigm. Lambda's should be extremely tiny and simple too, if you want long running more complex microservices you're better off using ECS/EKS. More on reddit.com
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July 11, 2018Why has Java fallen out of favor for use in lambdas?
Were they ever IN favor? Cold start times for JVM based lambdas were awful when I experimented with them a few years ago. I've read recently that improvements have been made, but honestly I like my lambdas to be extremely light weight, so interpreted languages just feel more in line with what I'm doing. More on reddit.com
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November 28, 2022In what scenario does using Java in Lambda make sense?
Very often the best language for a team/org is not the "best" language for particular component. If it's a Java based team it often doesn't make sense to dump all that investment just for Lambda if Java performance there is acceptable. Personally I won't use Node for anything if I can possibly avoid it. If Python isn't fast enough and in particular if threading will help I'll use Go. But even as anti-Node as I admit I am, I absolutely respect that in shops with a lot of Javascript talent due to frontend work it often makes the most sense to go with Node for backend work despite its many hair pulling issues. It's much better to be pragmatic than "right". Lambda supports a ton of languages (effectively all of them if we count custom runtimes) because it's pragmatic. More on reddit.com
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March 28, 2024Is anyone using Java Spring Boot in AWS Lambda?
We decided to go against it. As frameworks go it is quite heavy and with lambdas you don't need to be concerned so much with routing and servers. Lambdas are best kept small, almost at the function level. I have seen them best work with much smaller dependency injections like guice or dagger to help maintain a good structure and avoid anti patterns along side a build tool like maven. Hope this helps More on reddit.com
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October 15, 2022Videos
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AWS Lambda Java: How to create your first AWS Lambda Function in ...
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Amazon Web Services
docs.aws.amazon.com › aws lambda › developer guide › building lambda functions with java
Building Lambda functions with Java - AWS Lambda
The Hello class has a function named handleRequest that takes an event object and a context object. This is the handler function that Lambda calls when the function is invoked. The Java function runtime gets invocation events from Lambda and passes them to the handler.
Amazon Web Services
docs.aws.amazon.com › aws lambda › developer guide › building lambda functions with java › define lambda function handler in java
Define Lambda function handler in Java - AWS Lambda
, the AWS SAM CLI sam init command, or even a standard Java project setup in your preferred IDE, such as IntelliJ IDEA or Visual Studio Code. Alternatively, you can create the required file structure manually. A typical Java Lambda function project follows this general structure: /project-root └ src └ main └ java └ example └ OrderHandler.java (contains main handler) └ <other_supporting_classes> └ build.gradle OR pom.xml
AWS
aws.amazon.com › blogs › developer › invoking-aws-lambda-functions-from-java
Invoking AWS Lambda Functions from Java | AWS Developer Tools Blog
January 16, 2021 - AWS Lambda makes it incredibly easy and cost-effective to run your code at arbitrary scale in the cloud. Simply write the handler code for your function and upload it to Lambda. The service takes care of hosting and scaling the function for you. And in case you somehow missed it, it now supports writing function handlers in Java...
AWS
docs.aws.amazon.com › aws sdk for java › developer guide for version 2.x › calling aws services from the aws sdk for java 2.x › invoke, list, and delete aws lambda functions
Invoke, list, and delete AWS Lambda functions - AWS SDK for Java 2.x
public static void invokeFunction(LambdaClient awsLambda, String functionName) { InvokeResponse res = null ; try { //Need a SdkBytes instance for the payload String json = "{\"Hello \":\"Paris\"}"; SdkBytes payload = SdkBytes.fromUtf8String(json) ; //Setup an InvokeRequest InvokeRequest request = InvokeRequest.builder() .functionName(functionName) .payload(payload) .build(); res = awsLambda.invoke(request); String value = res.payload().asUtf8String() ; System.out.println(value); } catch(LambdaException e) { System.err.println(e.getMessage()); System.exit(1); } } ... objects. You can iterate through the list to retrieve information about the functions. For example, the following Java code example shows how to get each function name.
Amazon Web Services
docs.aws.amazon.com › aws lambda › developer guide › lambda sample applications
Lambda sample applications - AWS Lambda
– An example that shows how to use Quarkus in a managed Java runtime with and without SnapStart, or as a GraalVM native image with a custom runtime. Learn more in the Quarkus/Lambda guide ... – A hello world function that returns the public IP address. This app uses the provided.al2 custom runtime. ... – A Go function that shows the use of Lambda's Go libraries, logging, environment variables, and the AWS SDK.
GeeksforGeeks
geeksforgeeks.org › devops › java-aws-lambda
A Basic AWS Lambda Example With Java - GeeksforGeeks
July 23, 2025 - Step 1: Open aws console and go to Lambda service. Step 2: Go to Functions and click on “Create function” button. Step 3: Choose Author from scratch and mention the name of the Lambda function and its runtime.
AWS
docs.aws.amazon.com › aws sdk for java › developer guide for version 2.x › sdk for java 2.x code examples › lambda examples using sdk for java 2.x
Lambda examples using SDK for Java 2.x - AWS SDK for Java 2.x
Find the complete example and learn how to set up and run in the AWS Code Examples Repository ... /* * Lambda function names appear as: * * arn:aws:lambda:us-west-2:335556666777:function:HelloFunction * * To find this value, look at the function in the AWS Management Console. * * Before running this Java code example, set up your development environment, including your credentials.
SentinelOne
sentinelone.com › blog › aws-lambda-java-simple-introduction-examples
AWS Lambda With Java: A Simple Introduction With Examples | Scalyr
October 27, 2022 - AWS Java Lambda functions are easy to set up and use. This guide with example code and setup will get you on the road today!
AWS
docs.aws.amazon.com › aws sdk for java › developer guide for version 1.x › aws sdk for java code examples › lambda examples using the aws sdk for java › invoking, listing, and deleting lambda functions
Invoking, Listing, and Deleting Lambda Functions - AWS SDK for Java 1.x
The following Java code example demonstrates how to retrieve a list of Lambda function names. ListFunctionsResult functionResult = null; try { AWSLambda awsLambda = AWSLambdaClientBuilder.standard() .withCredentials(new ProfileCredentialsProvider()) .withRegion(Regions.US_WEST_2).build(); functionResult = awsLambda.listFunctions(); List<FunctionConfiguration> list = functionResult.getFunctions(); for (Iterator iter = list.iterator(); iter.hasNext(); ) { FunctionConfiguration config = (FunctionConfiguration)iter.next(); System.out.println("The function name is "+config.getFunctionName()); } } catch (ServiceException e) { System.out.println(e); }
CloudKatha
cloudkatha.com › home › aws lambda with java-a step by step tutorial
AWS Lambda with Java-A Step By Step Tutorial - CloudKatha
August 11, 2023 - Login to AWS Management Console. Search for lambda and click lambda to open the lambda console. This is how it looks like ... There are three different options displayed here. However, we will choose the author from scratch option as you can see in the below screenshot. Fill up basic information like function name and choose Java 8 in runtime as mentioned below.
AWS
docs.aws.amazon.com › aws sdk for java › developer guide for version 1.x › aws sdk for java code examples › lambda examples using the aws sdk for java
Lambda Examples Using the AWS SDK for Java - AWS SDK for Java 1.x
on December 31, 2025. We recommend that you migrate to the AWS SDK for Java 2.x to continue receiving new features, availability improvements, and security updates. This section provides examples of programming Lambda using the AWS SDK for Java.
Amazon Web Services
docs.aws.amazon.com › aws lambda › developer guide › building lambda functions with java › instrumenting java code in aws lambda
Instrumenting Java code in AWS Lambda - AWS Lambda
All of the sample applications have active tracing enabled for Lambda functions. For example, the s3-java application shows automatic instrumentation of AWS SDK for Java 2.x clients, segment management for tests, custom subsegments, and the use of Lambda layers to store runtime dependencies.
Lumigo
lumigo.io › guides › aws lambda 101 › aws lambda java
AWS Lambda Java - Lumigo
September 17, 2024 - The following example template defines a function with a deployment package in the build/distributions directory: #template.yaml AWSTemplateFormatVersion: '2010-09-09' Transform: 'AWS::Serverless-2016-10-31' Description: An AWS Lambda application that calls the Lambda API. Resources: function: Type: AWS::Serverless::Function Properties: CodeUri: build/distributions/java-basic.zip Handler: example.Handler Runtime: java8 Description: Java function MemorySize: 1024 Timeout: 5 # Function's execution role Policies: - AWSLambdaBasicExecutionRole - AWSLambdaReadOnlyAccess - AWSXrayWriteOnlyAccess Tracing: Active
GitHub
github.com › aws-samples › aws-lambda-java-workshop
GitHub - aws-samples/aws-lambda-java-workshop: This project contains the code for the Java on AWS Lambda workshop
This project contains the code for the Java on AWS Lambda workshop - aws-samples/aws-lambda-java-workshop
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Languages Java 62.7% | Shell 21.1% | Batchfile 12.1% | Dockerfile 3.7% | Java 62.7% | Shell 21.1% | Batchfile 12.1% | Dockerfile 3.7%
AWS
aws.amazon.com › blogs › opensource › packaging-and-deploying-aws-lambda-functions-written-in-java-with-aws-cloud-development-kit
Packaging and deploying AWS Lambda functions written in Java with AWS Cloud Development Kit | AWS Open Source Blog
August 23, 2021 - Now that we have seen how to build ... infrastructure folder sets up the architecture shown above. In this example, we have created a Java 11 Lambda function....
Harness Developer Hub
developer.harness.io › feature management & experimentation › sdks and customer-deployed components › examples › deploy java sdk in aws lambda
Deploy Java SDK in AWS Lambda | Harness Developer Hub
AWS Lambda supports Java 8 runtime only, so ensure you use JDK 1.8. ... <dependency> <groupId>com.amazonaws</groupId> <artifactId>aws-lambda-java-core</artifactId> <version>1.0.0</version> </dependency>
Amazon Web Services
docs.aws.amazon.com › aws lambda › developer guide › building lambda functions with java › deploy java lambda functions with container images
Deploy Java Lambda functions with container images - AWS Lambda
Note that the example Dockerfile does not include a USER instruction · . When you deploy a container image to Lambda, Lambda automatically defines a default Linux user with least-privileged permissions. This is different from standard Docker behavior which defaults to the root user when no USER instruction is provided. FROM public.ecr.aws/lambda/java:21 # Copy function code and runtime dependencies from Maven layout COPY target/classes ${LAMBDA_TASK_ROOT} COPY target/dependency/* ${LAMBDA_TASK_ROOT}/lib/ # Set the CMD to your handler (could also be done as a parameter override outside of the Dockerfile) CMD [ "com.example.myapp.App::handleRequest" ]
Sumo Logic
sumologic.com › home › how to create and monitor an aws lambda function in java 11
How to create and monitor an AWS lambda function in java ...
December 15, 2025 - We’ll walk through the steps of coding, configuring, and testing your function using the AWS Console. For this example, we’ll create a simple ZIP code validator that responds to a new address added to an Amazon DynamoDB table.