Lukas Liesis – Medium

Lukas Liesis

Best practices & guidelines

Code is just a tool. Some abstraction which you can’t even touch. It’s a tool, which for some is the closest thing to superpowers, but…

9 min readApr 22, 2024

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Lukas Liesis

Queue of execution in DynamoDB

In many scenarios you have a bunch of items which you want to execute one after another. There are many ways how to get it done. Many times…

3 min readJan 5, 2023

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Lukas Liesis

What is AWS EC2 cross availability zones network lag vs inside same zone?

Simple setup: 4 EC2 instances:

2 min readNov 29, 2022

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What is AWS EC2 cross availability zones network lag vs inside same zone?

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Lukas Liesis

AWS Api Gateway to SQS, step-by-step screenshots

https://us-east-1.console.aws.amazon.com/apigateway/main/apis?region=us-east-1

3 min readNov 5, 2022

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AWS Api Gateway to SQS, step-by-step screenshots

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Lukas Liesis

Building api architecture on modern AWS events-based cloud infrastructure

I build with NodeJs and usually using expressjs for the backend and ReactJS with Redux and immutable js for the frontend. I like this…

5 min readNov 27, 2021

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Lukas Liesis

CloudEvents, interoperability & feature of the internet tech

I wish after this decade many APIs on the internet would return responses followed by CloudEvent specification. Doesn’t matter https, wss…

1 min readNov 26, 2021

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Lukas Liesis

Great work arounds to run lambda on exact time yet there are some limits to keep in mind:

- DynamoDB will take up to 2 days to remove item by TTL, so accuracy is not within minutes or hours, but 2 days. You may ask to delete item…

2 min readApr 5, 2021

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Lukas Liesis

Learning from AWS

No question AWS is built by great people. It’s 200+ services are used by huge enterprises hitting databases at 5M queries per second and…

2 min readMar 3, 2021

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Lukas Liesis

Web Push Notification — how to

Main building blocks:

3 min readDec 7, 2020

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Lukas Liesis

How to set scroll direction independently for mouse and trackpad on Macbook

The issue with OS X and external not-magic mouses is when you connect normal mouse and scroll direction is set to “Natural” feels reversed…

3 min readOct 17, 2020

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How to set scroll direction independently for mouse and trackpad on Macbook

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Lukas Liesis

Lukas Liesis

2 decades exp of building business value through web tech. Has master's degree in Physics. Built startups with ex-Googlers. Was world’s top 3% developer.

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