Lambda Archives | Page 2 of 12 | theburningmonk.com

Building a custom IAM system has made me appreciate AWS IAM even more

AppSync, AWS, Lambda, Programming, Serverless / April 3, 2021 April 4, 2023

In the last post I discussed my preferred approach for modelling multi-tenant applications with AppSync and Cognito. This approach supports the common requirements in these applications, where there are a number of distinct roles within each tenant. This approach (and others like it) works great when the tenants are isolated. But what if they are …

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Production-Ready Serverless is back!

AWS, Lambda, Me, Serverless, Workshop / November 2, 2020 November 2, 2020

My Production-Ready Serverless workshop is back in January 2021 and will feature all the latest changes and features from re:Invent 2020. This is a hands-on workshop where you will learn best practices for building serverless applications by building an e-commerce solution from scratch. By the end of the workshop, you should have a clear idea when serverless is a …

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How to sample AppSync resolver logs

AppSync, AWS, CloudWatch, Lambda, Programming / September 22, 2020 October 7, 2020

AppSync has built-in logging integration with CloudWatch Logs (see here for more details on the logging options). You can set the Field resolver log level to NONE, ERROR or ALL. When the field resolver log level is set to NONE or ERROR, you don’t get a lot of value from the AppSync logs. For example, …

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Choreography vs Orchestration in the land of serverless

AWS, EventBridge, Lambda, Serverless, SNS, Step Functions / August 7, 2020 April 5, 2023

Choreography and Orchestration are two modes of interaction in a microservices architecture. In orchestration, there is a controller (the ‘orchestrator’) that controls the interaction between services. It dictates the control flow of the business logic and is responsible for making sure that everything happens on cue. This follows the request-response paradigm. In choreography, every service …

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Are Lambda-to-Lambda calls really so bad?

AWS, Lambda, Programming, Serverless / July 12, 2020 April 5, 2023

If you utter the words “I call a Lambda function from another Lambda function” you might receive a bunch of raised eyebrows. It’s generally frowned up for some good reasons, but as with most things, there are nuances to this discussion. In most cases, a Lambda function is an implementation detail and shouldn’t be exposed …

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Production-Ready Serverless is back (with improved curriculum)!

AWS, Lambda, Me, Serverless / July 6, 2020 August 31, 2020

My 4-week Production-Ready Serverless workshop is back! With an improved and more comprehensive curriculum based on student feedback from the last run in May, when over 50 students from around the world took part. This is a hands-on workshop where you will learn best practices for building serverless applications by building an e-commerce solution from …

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Skill up your serverless game with my new instructor-led online workshop

AWS, Lambda, Me, Serverless / April 14, 2020 August 31, 2020

Have you been wondering about serverless but just don’t know how and where to start? Maybe you’re already building stuff with serverless, but don’t know if you’re doing it right? Are you unsure about the best practices for testing, monitoring and how to choose between similar services like SNS and EventBridge? I have just …

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Hit the 6MB Lambda payload limit? Here’s what you can do.

API Gateway, AWS, Lambda, Programming, Serverless / April 9, 2020 April 5, 2023

So you have built a serverless application, that, amongst other things, lets you upload images and files to S3. The set-up is very simple: API Gateway, Lambda and S3. It took you no time to implement and it works like a dream. You pat yourself on the back for another job well done. Until one …

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How to: optimize Lambda memory size during CI/CD pipeline

AWS, Lambda, Performance, Serverless / March 22, 2020 July 17, 2022

Lambda invocations are charged in 100ms blocks of execution time. But the cost per 100ms of execution time depends on how much memory you allocate to the function. The higher the memory, the more CPU cycles and network bandwidth, but the higher the cost as well. One of the simplest and most efficient cost optimization …

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Real-World Serverless: fully-serverless insurance company with Joe Emison

AWS, Lambda, Me, Real-World Serverless, Serverless / March 20, 2020 March 20, 2020

In this two-part conversation on Real-World Serverless, I spoke with Joe Emison about his experience with serverless and his latest venture, Branch, a home and auto insurance company that is built fully-serverlessly by a small team. Joe is easily one of the smartest people working with serverless technologies today and I’m very grateful that he …

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