Category: AWS Lambda

This blog post walks through a sample application repo and explains the process for retrieving a signed URL from S3. It explains how to the test the URLs in both Postman and in a web application. Finally, I explain how to add authentication and make uploaded objects publicly accessible.

Lambda layers provide a convenient and effective way to package code libraries for sharing with Lambda functions in your account. Using layers can help reduce the size of uploaded archives and make it faster to deploy your code.

Amazon API Gateway is often used for managing access to serverless applications. Additionally, it can help developers reduce code and increase security with features like AWS WAF integration and authorizers at the API level. Because more is handled by API Gateway, developers tell us they would like to see more data points on the individual […]

This guide demonstrates creating and deploying a production ready document scanning application. It allows users to manage projects, upload images, and generate a PDF from detected text. The sample can be used as a template for building expense tracking applications, handling forms and legal documents, or for digitizing books and notes. The frontend application is […]

Developers building serverless applications often wonder how they can jump-start their local development environment. This blog post provides a broad guide for those developers wanting to set up a development environment for building serverless applications. AWS and open source tools for a serverless development environment . To use AWS Lambda and other AWS services, create […]

Previously in this series, you deploy a simple workflow for processing image uploads in the Happy Path web application. In this post, you add progressively more complex functionality by deploying new versions of workflows.

This blog post demonstrates a solution that connects Salesforce to an event-driven application that uses EventBridge and Amazon AppFlow to route events. The application uses events from Salesforce as a starting point for a custom processing workflow in a Lambda function.

Over the last year, I have been talking about “storage first” serverless patterns. With these patterns, data is stored persistently before any business logic is applied. The advantage of this pattern is increased application resiliency. By persisting the data before processing, the original data is still available, if or when errors occur. Common pattern for […]

This post focuses on the business logic layer of the Happy Path application. I introduce Step Functions and show how you can use Amazon States Languages (ASL) to define state machines.

In this post, I introduce the Happy Path example web application. I show the main features of the application, enabling end-users to upload maps and photos to the backend application.