Tag dynamodb

Cost savings with DynamoDB On-Demand: Lessons learned

One of my favorite features announced during re:Invent 2018 is DynamoDB On-Demand. With DynamoDB On-Demand, we can use DynamoDB without provisioning capacity. Instead, we pay per request. Sounds amazing? I was excited and re-configured all DynamoDB tabl...

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Cloud adaption strategy: event-based data synchronization

Are you building an application for the cloud without the slightest dependency to an on-premises infrastructure? Lucky you, most of us are struggling with uniting an outdated on-premises infrastructure with the shiny cloud. I’d like to share a cloud ada...

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Your Lambda function might execute twice. Be prepared!

Are you confused when scheduled Lambdas execute twice, SNS messages trigger an invocation three times, your handmade S3 inventory is out of date because events occurred twice? Bad news: Sooner or later, your Lambda function will be invoked multiple time...

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New CloudFormation Template - Backing up DynamoDB the easy way

DynamoDB is an easy-to-use NoSQL database available only on AWS. It comes with many useful features such: Time-to-live for items Secondary indexes Scalable read and write throughput Streams that contain all changes of a table Unfortunately, there is n...

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DynamoDB pitfall: limited throughout due to hot partitions

Is your application suffering from throttled or even rejected requests from DynamoDB? Even if you are not consuming all the provisioned read or write throughput of your table? You run into a common pitfall! Read on to learn how Hellen debugged and fixed...

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Create a serverless RESTful API with the Serverless Framework powered by API Gateway, Lambda, and DynamoDB

This article teaches you how to create a Serverless RESTful API on AWS with the Serverless Framework. DynamoDB is used to store the data. The example’s source code is available on GitHub and can be used to speed up your project. If you are interested i...

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API Gateway Custom Authorization with Lambda, DynamoDB and CloudFormation

API Gateway provides an HTTP API endpoint that is fully configurable. You define the HTTP resources (like /user), the HTTP methods on that resources (like POST, GET, DELETE, …) and the integration (e.g. Lambda function) that should be called to process ...

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Create a serverless RESTful API with API Gateway, CloudFormation, Lambda, and DynamoDB

This article teaches you how to create a serverless RESTful API on AWS. You will use CloudFormation to define the API Gateway in combination with Lambda to implement the functionality. DynamoDB is used to store the data. The example’s source code is ava...

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Serverless: Invalidating a DynamoDB Cache

A cache in front of DynamoDB is boosting performance and saving costs. Especially true for read-intensive and spiky workloads. Why? Please have a look at one of my recent articles: Performance boost and cost savings for DynamoDB. Caching itself is easy:...

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The Life of a Serverless Microservice on AWS

In this post, I will demonstrate how you can develop, test, deploy and operate a production-ready Serverless Microservice using the AWS ecosystem. The combination of AWS Lambda and Amazon API Gateway allows us to operate a REST endpoint without the need...

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