Dynamodb rest api example java After loading the API definition into API Gateway, you can use the API Gateway console to examine the API's basic structure or simply deploy and test the API. Dec 25, 2019 · Creating REST API in Spring Boot Webflux and AWS DynamoDB. Launched in 2012, DynamoDB Apr 10, 2017 · I created a table in Amazon dynamodb with primary key Issue (String) which has data stored in it. For more Sep 25, 2022 · In this article, we are going to build CRUD RESTful Microservices with AWS Lambda, API Gateway and DynamoDB using latest AWS SDK JavaScript v3 and ES6 standards. If LastEvaluatedKey is present in the response, pagination is required to complete the full table scan. The following tutorials provide hands-on exercises to help you learn about API Gateway REST APIs. AWS software development kits (SDKs) are available for many popular programming languages. For example, the SDK for Java document interface provides java. Just wondering what kind of API the AWS DynamoDB uses when you're writing a program using the SDK (i Learn about expressions and how to expression conditions by using the DynamoDB Enhanced Client API. Use this client when you need fine-grained control or work with dynamic schemas. Sdk-for-java › developer-guide Amazon RDS Data Service examples using SDK for Java 2. Understanding Single Table Design in DynamoDB Single Table Design leverages partition keys and sort keys to organize and retrieve data efficiently. Spring Webflux is a parallel framework to the most popular Spring MVC framework Dec 24, 2024 · Building a serverless RESTful API using AWS Lambda, API Gateway, and DynamoDB with user authentication using AWS Cognito and deploying using Serverless Framework. I want to read the values from my table. The output from ListTables is paginated, with each page returning a maximum of 100 table names. x directly but not using Spring Cloud for Amazon Web Service Instead of developing on AWS cloud, LocalStack is used for local development, and also for JUnit test with TestContainer DynamoDB Mar 31, 2024 · Uncover the secrets of updating DynamoDB items in Java with expert strategies and best practices. For a complete list of AWS SDK developer guides and code examples, see Using DynamoDB with an AWS SDK. We’ll have a detailed look at the following topics: Basic Nov 17, 2025 · Explore how to map your client-side classes to the Amazon DynamoDB tables using the DynamoDB Enhanced Client in the AWS SDK for Java. js) and DynamoDB Introduction In this tutorial we will explore building Serverless REST API integrated with database using AWS. Javascript is disabled or is unavailable in your browser. In this tutorial, you create a serverless API that creates, reads, updates, and deletes items from a DynamoDB table. Steps to Implement CRUD Operations with AWS DynamoDB: 1. For example, DynamoDB delivers consistent single-digit millisecond performance for a shopping cart use case, whether you've 10 or 100 million users. Although DynamoDB supports a small number of attribute types compared to the rich type system of Java, the DynamoDB Enhanced Client API provides mechanisms to convert members of a Java class to and from DynamoDB attribute types. 2 days ago · Amazon DynamoDB provides low-level API actions for managing database tables and indexes, and for creating, reading, updating and deleting data. Sample Lambda applications in Java example-java – A Java function that demonstrates how you can use Lambda to process orders. In this guide, we'll walk through integrating DynamoDB into your Java application using the aws-java-sdk-dynamodb package. By following this tutorial, you'll gain the knowledge and tools to leverage DynamoDB's This example implements a simple CRUD REST with Spring Boot MVC back with AWS DynamoDB. Understanding how to work with DynamoDB using Java is essential for Dec 23, 2024 · Step-by-Step Tutorial for Building Scalable Microservices with DynamoDB, API Gateway, and Java 17 Best Practices Jun 29, 2024 · Building a Scalable CRUD Application with AWS Lambda and DynamoDB in Java In today’s cloud computing landscape, serverless architectures have gained immense popularity due to their scalability … May 7, 2023 · Learn to use integrate DynamoDB using Spring-cloud-aws module and its DynamoDbTemplate and DynamoDbEnhancedClient beans with examples. Apr 15, 2024 · How to write AWS Lambda with AWS Serverless Java Container using Spring Boot 3. In this tutorial, you create a REST API through which you invoke a Lambda function using an HTTP request. For more information, see Paginating the Results in the Amazon DynamoDB Jun 11, 2018 · Learn how to integrate Spring Boot with Amazon DynamoDB with easy to understand example. DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability. DynamoDB Streams captures data modification events. Jun 13, 2021 · AWS DynamoDB is a fully managed NoSQL database service in AWS Cloud. We’ll create a few REST APIs and perform CRUD operations on a locally deployed DynamoDB instance. Iterator support so that you can walk through the results one at a time. First, we explore the PageIterable interface by looking at the scan method of the synchronous mapping class, DynamoDbTable. By using AWS Lambda to implement the API together with DynamoDB, you don’t have to deploy or manage servers for either the application tier or database tier. - l Jun 21, 2024 · Learn how to build a robust CRUD API using AWS API Gateway, Lambda, and DynamoDB. The following is a summary of these operations, organized by category. This comprehensive tutorial covers step-by-step instructions and best practices for seamless integration. The SDK's scan method corresponds to the DynamoDB operation of the same name. x. These excerpts call the DynamoDB API and are code excerpts from larger programs that must be run in context. Mar 31, 2017 · A hands-on tutorial on building a REST API in Node. For example, always use Long and Integer object data types, not Jan 8, 2024 · AWS Lambda is a serverless computing service provided by Amazon Web Services and WS DynamoDB is a NoSQL database service also provided by Amazon. In two previous articles, we discussed how to create an AWS Lambda function using Java, as well as how to access DynamoDB from a Lambda function. - s In this tutorial, you create a REST API through which you invoke a Lambda function using an HTTP request. For example, when building RESTful APIs that serve DynamoDB data to clients, JSON is a popular choice for data representation due to its wide support across different programming languages and platforms. aws. We used a high level construct from the AWS Solutions Constructs library, that defines all in one go. DynamoDB tables store items containing attributes uniquely identified by primary keys. The attribute types (properties) of your Java data classes should be objects types, not primitives. The DynamoDB Enhanced Client API offers the same options but it uses a familiar object model and handles the pagination for you. If any one has tried this with DynamoDB RESTful API, can you give me an example of how to get table data? A sample url would also be good, something showing how to connect to DynamoDB through a RESTful API. Nov 4, 2020 · Discover how to implement a Spring Boot REST API with CRUD functionality using DynamoDB. This tutorial will show you step by step process to create a nice and interactive Web Applications using AWS Lambda, API Gateway, DynamoDB and S3. Discover how Amazon DynamoDB helps protect your data by default using the fully managed encryption at rest functionality. We recommend that you migrate to the AWS SDK for Java 2. Enhanced client (DynamoDbEnhancedClient) Offers object-oriented programming with automatic mapping between Java objects and DynamoDB items. In this tutorial we are going to cover how to work with NoSQL AWS DynamoDB in our Spring Boot Microservice application, perform CRUD Insert, Update and Read operations executed within our Database Jan 8, 2024 · AWS Lambda is a serverless computing service provided by Amazon Web Services. Each SDK provides an API, code examples, and documentation that make it easier for developers to build applications in their preferred language. Jul 25, 2025 · Architected and implemented a serverless microservices ecosystem using AWS Lambda, API Gateway, and DynamoDB, reducing operational costs by 40% and improving scalability for a user base of 5 million+. This example invokes different AWS services to perform a specific use case. View java code to see and learn about using the low-level API for DynamoDB Streams. You can also perform a conditional update on an existing item (insert a new attribute name-value pair if it doesn't exist, or replace an existing name-value pair if it has certain expected attribute values). Create an AWS account if you do not already have one and login. Aug 19, 2021 · Let’s learn to use these services with a use case — create an API to add a new entry to the database using AWS Services — Lambda, API Gateway and DynamoDB. To use the Amazon Web Services Documentation, Javascript must be enabled. This section provides examples of programming DynamoDB using the AWS SDK for Java. amazon. To work with Amazon DynamoDB, your application must use a few simple API operations. All using the Serverless Framework. java-basic – A collection of minimal Java functions with unit tests and variable logging configuration. This code base is an example API built with the Java 8 runtime for AWS Lambda, in the context of a common use case: an API backed by Amazon DynamoDB as its data store. Dec 17, 2024 · API Gateway integrates these resources and methods with AWS Lambda to execute backend logic or interact with a database like DynamoDB Click on deploy API In the deploy API overview, a box would pop up for you to choose a stage (New Stage), and then type in a stage name (dev), you can fill in the description box or leave it blank, it is optional. Testing your Serverless Employee REST API Feb 23, 2024 · Uncover the secrets of querying DynamoDB with Java! Learn the pitfalls to avoid and the best practices for efficient, scalable applications. 4 days ago · Explore a comprehensive overview of the low-level DynamoDB API, including details on the various operations supported by DynamoDB, DynamoDB Streams, and DAX. Install Git and install the AWS Serverless Application Model CLI on your local machine. Use the synchronous API The following example shows the scan Jun 18, 2020 · You can also login to you AWS Console and verify the various services that got deployed like API Gateway, AWS Lambda function, DynamoDB table etc. May 12, 2025 · Amazon DynamoDB is one such serverless and fully managed NoSQL database provided by Amazon Web Services (AWS). Note The AWS SDKs handle the low-level DynamoDB responses (including the presence or absence of LastEvaluatedKey) and provide various abstractions for paginating Scan results. Then, you'll use the API Gateway console to create a WebSocket API that integrates with your Lambda functions. The PetStore example API supports the following Use these hands-on tutorials to get started with Amazon DynamoDB. This topic also includes information about getting started and details about previous SDK versions. You can use the Amazon API Gateway console to create and test a simple REST API with the HTTP integration for a PetStore website. js:160 throw er; // Unhandled 'error' event ^ Error: spawn java EN. Dive into this repository and unlock the power of integrating Amazon Bedrock's cutting-edge large language models (LLMs) with the scalable NoSQL In this tutorial we are going to cover how to work with NoSQL AWS DynamoDB in our Spring Boot Microservice application, perform CRUD Insert, Update and Read operations executed within our Database Oct 22, 2024 · The example covers setting up AWS SDK for DynamoDB, handling DynamoDB entities, and optimizing performance for real-world applications. Use API Gateway to invoke a Lambda functionSDK for Java 2. Oct 28, 2024 · A guide to getting started with Spring Boot, DynamoDB, Spring Cloud AWS DynamoDB, and AWS Java SDK v2. By leveraging these services, we have built a highly scalable, cost-effective, and reliable REST API that eliminates the need for traditional server management. java-events – A collection of Java Nov 6, 2023 · In this tutorial, you'll learn how to build a fully functional CRUD (Create, Read, Update, Delete) API using AWS Lambda, API Gateway, and DynamoDB with Pytho Low-level client (DynamoDbClient) Provides direct access to DynamoDB operations with full control over requests and responses. What does this ex When trying the example: aws-node-rest-api-with-dynamodb-and-offline, I run serverless offline start, always get below error. May 18, 2019 · Introduction In this tutorial we use the Amazon Web Services Java 2 Application Programming Interface (API) to create a Rest application using Spring Boot that reads and writes to a DynamoDB database. The AWS SDKs construct low-level API requests on your behalf and process the responses. com/amazondynamodb/latest/APIReference/API_ListTables. Learn how to work with DynamoDB tables using the AWS CLI and SDKs to optimize your database operations, build scalable applications, and improve their performance. html May 5, 2022 · This post provides a collection of AWS Lambda CloudFormation template examples, including REST APIs, SQS Lambda triggers, and more. Oct 16, 2025 · In many real - world scenarios, developers need to convert data retrieved from DynamoDB into JSON format. Apr 10, 2023 · Learn how to develop a Serverless CRUD API with AWS Lambda and Java. Learn how to create tables, perform CRUD operations, and then query and scan data. Clone this repo Scorekeep is a RESTful web API implemented in Java that uses Spring to provide an HTTP interface for creating and managing game sessions and users. In this post, you will create a REST API project, integrate it with DynamoDB using spring-data-dynamodb and then unit test it. (Java) DynamoDB - UpdateItem Edits an existing item's attributes, or adds a new item to the table if it does not already exist. If you're working with a Java Spring project and considering Amazon's robust NoSQL service, DynamoDB, this article is for you! We'll guide you through a seamless integration process using the Spring Cloud AWS. If you are using the AWS Toolkit for Eclipse, you can configure automatic updates for the SDK for Java. js 2. js RESTful API with DynamoDB Local Node is usually used along side MongoDB in the MEAN stack. x Web application tracks work items in Amazon Aurora Serverless database, sends reports via Amazon SES, uses Spring REST API querying Aurora Serverless data, React application, JDBC API. For nearly a decade, DynamoDB has established itself as one of the most popular and widely used NoSQL databases in the cloud due to its scalability, flexibility, and performance. Jul 29, 2023 · Integrate AWS DynamoDB with Spring Boot Spring Boot is a popular framework for Java backend developers to implement business services, and DynamoDB is a popular NoSQL database. Step by step guide for storing retriving data in DynamoDB using Spring Boot Webflux as REST API. We need to update the Amazon DynamoDB Rest example to use Spring Boot 3. This function is provided here for demonstration, but you will learn to configure an API Gateway REST API that can invoke any Lambda function. Interestingly, DynamoDB supports both document store and key-value store and is fully managed by AWS. Each example includes a link to GitHub, where you can find instructions for setting up and running the code. To keep it simple and have better understanding the AWS DynamoDB service, the example uses AWS SDK for Java 2. In this article, we will look at accessing DynamoDB from our Java applications with Spring Data and an enhanced high-level client with the help of some code examples. Building high-performance and scalable applications often requires a powerful database solution. The API definition is preconfigured as a OpenAPI 2. Also provides document-oriented capabilities for May 2, 2020 · In this post we are going to build a reactive rest api which will do CRUD operation on AWS Dynamodb asynchronously. You can put, delete, or add attribute values. Jul 26, 2022 · The functionality was based on following this AWS tutorial: Tutorial: Build a CRUD API with Lambda and DynamoDB . Jun 30, 2023 · Building a Serverless REST API with AWS Lambda (Node. Steps to reproduce: Computer:aws-node-rest-api-with-dynamodb-and-offline paul$ export SLS_DEBUG=* Computer:aws-node-rest-api-with DynamoDB addresses your needs to overcome scaling and operational complexities of relational databases. The code examples in this guide are intended for use with the latest version of the AWS SDK for Java. This step-by-step guide covers everything you need to build and deploy a serverless application using AWS Lambda and Java. Actions are code excerpts from larger programs and must be run in context. In “traditional” Java development, a REST API for objects stored in a database would mostly be served by some Java code handling the HTTP requests and transforming the database model to the For a complete list of AWS SDK developer guides and code examples, see Using DynamoDB with an AWS SDK. Apr 17, 2025 · In this article, we will explore how to integrate GraphQL into a Spring Boot application, compare it with traditional RESTful API approaches, and provide detailed examples, including before-and Apr 2, 2020 · In this post, I will be exploring using asynchronous DynamoDB API and Spring Webflux by building a simple reactive REST application. In a production deployment, you would use Amazon API Gateway to proxy RESTful API requests to the Lambda functions, each of which corresponds to a single API call. This project includes the Scorekeep API and a front-end web app that consumes it. Apr 2, 2020 · In this post, I will be exploring using asynchronous DynamoDB API and Spring Webflux by building a simple reactive REST application. DynamoDB also provides API actions for accessing and processing stream records. The limitation we ran into was that we couldn’t customise the output of the GET method This is an AWS community-driven repository packed with Amazon DynamoDB code samples, solutions, and SDK examples to empower your cloud-native development. First, you'll use an CloudFormation template to create Lambda functions that will handle API requests, as well as a DynamoDB table that stores your client IDs. This example demonstrates how to create a Lambda function invoked by Amazon API Gateway that scans an Amazon DynamoDB table for work anniversaries and uses Amazon Simple Notification Service (Amazon SNS) to send a text Jun 22, 2023 · Learn how to build a REST API with API key authentication using AWS API Gateway, DynamoDB, Lambda, and the AWS CDK as well as how to test it with Postman. Dec 14, 2017 · Please LMK if I've made a basic mistake, or if more info is needed. You can use the AWS SDK for Java Document API to perform typical create, read, update, and delete (CRUD) operations on Amazon DynamoDB items in a table. This tutorial assumes AWS familiarity, Java programming experience, and Spring Boot experience. We need to update them every so often. In this tutorial, we’ll discuss how to publish a Lambda function as a REST endpoint, using AWS Gateway. Dec 19, 2021 · → In this article, we create an AWS serverless REST API using Lambda, DynamoDB, API Gateway (three AWS services), and JavaScript → This article aims to insert, read, update and delete products from Dynamo DB using the lambda function. DynamoDB is purpose-built and optimized for operational workloads that require consistent performance at any scale. In this tutorial, we will explore how to integrate AWS DynamoDB, a fully managed NoSQL database service, into your Java applications. Learn how to set up and use DynamoDB local, a downloadable version of DynamoDB local that enables local, cost-effective development and testing. x DynamoDB examples demonstrate creating tables, querying items, updating items, scanning tables, deleting items, batch operations, and conditional operations. 🎯 Key Take This tutorial takes approximately 30 minutes to complete. Jan 17, 2024 · Learn to access DynamoDB from a Spring Boot app and perform CRUD, batch and transaction operations using DynamoDBMapper or JPA Repository. 0 file. Before we start, note that this tutorial requires a valid AWS account (you can create one here). This guide provides step-by-step instructions for seamless integration. Spearheaded the adoption of Infrastructure as Code (IaC) practices, utilizing AWS CloudFormation and Terraform to automate 95% of cloud resource provisioning, cutting deployment time from days to Aug 19, 2021 · Let’s learn to use these services with a use case — create an API to add a new entry to the database using AWS Services — Lambda, API Gateway and DynamoDB. By following this tutorial, you'll gain the knowledge and tools to leverage DynamoDB's Mar 31, 2024 · Uncover the secrets of updating DynamoDB items in Java with expert strategies and best practices. Dec 31, 2024 · The successful implementation of this project demonstrates the power and flexibility of serverless architecture using API Gateway, AWS Lambda, and DynamoDB. In this application we'll create and retrieve products and use DynamoDB as the NoSQL database. For more information, see https://docs. By following the steps outlined here, you will learn how to perform basic operations such as creating a table, adding and retrieving items, and implementing efficient data management strategies. x with DynamoDB. Nov 13, 2019 · I'm creating an app that queries a DynamoDB to return information for a project I'm working on. Access the full code here from the GitHub and please provide your feedback Feb 4, 2025 · This full-stack example will cover the basics of Angular and AWS, including setting up a new Angular project, deploying it to AWS, and integrating it with AWS services such as S3, DynamoDB, and API Gateway. js using AWS Lambda, API Gateway, DynamoDB, and the Serverless Framework . Serverless Examples – A collection of boilerplates and examples of serverless architectures built with the Serverless Framework on AWS Lambda, Microsoft Azure, Google Cloud Functions, and more. Sep 8, 2023 · Welcome to this beginner-friendly tutorial, where we’ll explore the world of creating, reading, updating, and deleting data (CRUD) in Spring Boot applications. - s The following code examples demonstrate how to perform individual DynamoDB actions with AWS SDKs. How to use AWS Java 2 API to create a Rest application using Spring Boot that reads and writes to a DynamoDB database Feb 10, 2023 · In this post, I will discuss how to execute a long-running process in asynchronous as non-blocking code. Jun 13, 2025 · This guide explores best practices for optimizing Single Table Design in DynamoDB and provides a practical REST API example to streamline implementation. Master the art of data manipulation and concurrency control! For a complete list of AWS SDK developer guides and code examples, see Using DynamoDB with an AWS SDK. However, using Amazon’s DynamoDB has it’s own benefits, not least from speed, scalability … Learn about how Amazon DynamoDB processes requests and replies at the lowest API level. Launched in 2012, DynamoDB Building high-performance and scalable applications often requires a powerful database solution. In this tutorial, I will take you through creating RESTFul API in Java with dynamo DB and lambda function using sam CLI. Any hints for me? $ sls offline start events. Abstracts generated by AI 1 2 3 4 Sdk-for-java › developer-guide Learn the basics of the DynamoDB Enhanced Client API DynamoDB Enhanced Client simplifies working with items, attributes, and tables using Java classes, reducing verbosity and increasing type safety compared to the standard client. Background story Over time, the Java V2 use cases become out dated. How to use DynamoDbTemplate in your Spring Boot applications to write dynamic DynamoDB queries. 2 sample application and use Java 21 runtime for our Lambda functions. For examples specific to DynamoDB, see Code examples for DynamoDB using AWS SDKs. This page serves as a reference guide for developers working with the DynamoDB platform. Sep 27, 2016 · In this blog post series, I describe a serverless architecture for a common use case on AWS: a Java-based API backed by Amazon DynamoDB as its data store. In this tutorial, you will learn REST basics and key concepts with examples. Feb 4, 2025 · Learn more about example code for using DynamoDB and DAX with AWS SDK for Node. Learn about how to map Java objects to DynamoDB items by using the DynamoDB Enhanced Client API in the AWS SDK for Java 2. Master the art of data manipulation and concurrency control! Explore how to map your client-side classes to the Amazon DynamoDB tables using the DynamoDB Enhanced Client in the Amazon SDK for Java. If you want to know more about how to specify different attribute types in an expression, see Referring to item attributes when using expressions in DynamoDB. In this tutorial, you will learn everything about REST and how to implement REST APIs (Restful web services) using Java. So you will learn everything from scr Dec 14, 2017 · Please LMK if I've made a basic mistake, or if more info is needed. Mar 25, 2023 · In this short tutorial we discussed about how to do the AWS DynamoDB CRUD operations using java spring boot application. Feb 1, 2018 · Node. This example demonstrates how to create a Lambda function invoked by Amazon API Gateway that scans an Amazon DynamoDB table for work anniversaries and uses Amazon Simple The following code examples show you how to perform actions and implement common scenarios by using the AWS SDK for Java 2. I'm using the following code. We’ll focus on using DynamoDB, a A single Scan operation first reads up to the maximum number of items set (if using the Limit parameter) or a maximum of 1 MB of data and then applies any filtering to the results if a FilterExpression is provided. Create a new directory and navigate to that directory in a terminal. May 5, 2022 · This post provides a collection of AWS Lambda CloudFormation template examples, including REST APIs, SQS Lambda triggers, and more. Your Lambda function will perform create, read, update, and delete (CRUD) operations on a DynamoDB table. By following the steps… The following code examples show how to use DynamoDB with an AWS software development kit (SDK). x Shows how to create an AWS Lambda function by using the Lambda Java runtime API. 2 For the sake of explanation we'll use our Spring Boot 3. Apr 17, 2018 · Build a serverless REST API service in Java, store the data in a DynamoDB table, and deploy it to AWS. . This function illustrates how to define and deserialize a custom input event object, use the AWS SDK, and output logging. x to continue receiving new features, availability improvements, and security updates. For more information about the functions used in the following examples, see Condition and filter expressions, operators, and functions in DynamoDB. This tutorial will show you how to build a complete Rest API using Lambda and DynamoDB. (Java) DynamoDB - ListTables Returns an array of table names associated with the current account and endpoint. It has clear explanation of all components being used in this API via design diagram. Sep 25, 2022 · In this article, we are going to build CRUD RESTful Microservices with AWS Lambda, API Gateway and DynamoDB using latest AWS SDK JavaScript v3 and ES6 standards. util. Basics are code examples that show you how to perform the essential operations within a service. Note The AWS SDKs handle the low-level DynamoDB responses (including the presence or absence of LastEvaluatedKey) and provide various abstractions for paginating Query results. Sep 2, 2020 · AWS REST API using Quarkus, AWS Lambda, DynamoDB, and Serverless Framework By Jobin Basani September 2, 2020 SDK for Java 2. Jun 1, 2021 · How to use Java CDK to define a DynamoDB-backed REST API with only AWS API Gateway – part 2 In the previous blog we discussed how you can define a no-code or low-code REST-API on top of a DynamoDB table. Jun 13, 2023 · In this tutorial, I will walk through the process of building a serverless API that enables the creates, reads, updates, and deletes of items stored in a DynamoDB table. DynamoDB supports partition keys, partition and sort keys, and secondary indexes. Aug 7, 2024 · DynamoDB is Amazon's fully managed NoSQL database service, and it's a powerhouse for handling massive amounts of data with blazing-fast performance. November 18, 2025 Code-library › ug DynamoDB examples using SDK for Java 2. May 25, 2021 · A step by step tutorial to make AWS API Gateway implement a REST API on top of a DynamoDB table, deployed using a CDK script written in Java. Learn how to access DynamoDB from a Spring Boot application. Dec 31, 2021 · I would like to make REST call to the DynamoDB asynchronously using CompletableFuture and method is provided: Jun 30, 2023 · Building a Serverless REST API with AWS Lambda (Node.