Category: Amazon DynamoDB

This guide demonstrates an example solution for collecting, tracking, and sharing pulse oximetry data for multiple users. It’s built using AWS serverless technologies, enabling reliable scalability and security. The frontend application is written in VueJS and uses the Amplify Framework. It takes oxygen saturation measurements as manual input or a BerryMed pulse oximeter connected to […]

Web developers commonly use relational databases in building their applications. When migrating to serverless architectures, a web developer can continue to use databases like RDS, or take advantage of other options available.

This post shows how to use AWS Serverless services to design a secure, reliable, and cost-optimized tokenization solution. It can be integrated with applications to protect sensitive information and manage access using strict controls with less operational overhead.

Serverless applications can help you develop more agile applications that can scale automatically. By using serverless services in your architecture, this reduces the amount of boilerplate code. It also helps offload complex tasks to specialized services. As a result, a well-designed serverless application can be modified easily to deliver new feature requests, while maintaining high […]

In this post, I discuss focus areas for load testing of serverless applications, and highlight two tools commonly used. I show how to configure Artillery with customized functions, and how to run tests to simulate load on the Ask Around Me application.

This blog post explores how you can solve geolocation queries using geohashing. I discuss how you should decide on the resolution of a geohash for your specific workload.

This series of blog posts uses the AWS Well-Architected Tool with the Serverless Lens to help customers build and operate applications using best practices. In each post, I address the nine serverless-specific questions identified by the Serverless Lens along with the recommended best practices. See the Introduction post for a table of contents and explanation of the example application. Question OPS2: […]

In part 2, I cover the API configuration, geohashing algorithm, and real-time messaging architecture used in the Ask Around Me web application. These are needed for receiving and processing questions and answers, and sending results back to users in real time. In this post, I explain the backend processing architecture, how data is aggregated, and […]

This post explores the backend architecture of the Ask Around Me application. I compare the cost and features in deciding between REST APIs and HTTP APIs in API Gateway. I introduce geohashing and the npm library used to handle geo-location queries in DynamoDB. And I show how you can build real-time messaging into your web applications using the publish-subscribe pattern with AWS IoT Core.

In this post, I introduce the Ask Around Me example web application. Learn to build a serverless realtime, Vue.js web app in part 1 of this series.