This blog is about distributing private S3 bucket content through CloudFront using the signed URLs. Why do we need it? When there is a requirement to prevent users from accessing content directly on the origin server (for example, Amazon S3 or a private HTTP server) When there is a need to prevent users from bypassing…

This blog describes the Step Function callback pattern with a simple use case. It also covers Step function and Lambda integration with API Gateway and DynamoDB CRUD operations. In a callback pattern, Step Functions pauses execution of the workflow until your application returns a token through the Step Functions application…

This article is about .NET Core API that uses AWS SDK to interact with AWS S3 or VMWare S3 broker for managing the documents in S3. It covers the following topics. S3 Client-side encryption with the Master key stored in AWS KMS or a Master key maintained outside AWS. APIs…

This article covers implementation details of Reliability, Observability, and Cross-cutting concerns patterns in .NET Core APIs. Inspired by the patterns covered in https://microservices.io. Overview:

Introduction: In this article, I would like to cover the advantages of API Design first over Code first approach. Code first approach: In general, while designing API, we first start with analyzing business requirements followed by documenting low-level design to understand the various component interaction and implement code to achieve the required functionality. When…

I would like to share how to externalize the configuration settings in ASP.NET Core APIs on the Pivotal Cloud Foundry (PAAS platform) using the Spring Cloud Config Server. What do you mean by externalizing the application’s settings? An app’s config is everything that is likely to vary between deploys (staging, production, developer environments, etc). This includes: Resource handles to…