Pandula Weerasooriya – Medium

Pandula Weerasooriya

Pandula Weerasooriya
in
DevOps.dev

Implementing Request Parking in a Go Service with Redis

This short article explains, in essence, how to use Redis to synchronize multiple concurrent requests in a Web service. Although I’ve used…

7 min readSep 1, 2023

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Implementing Request Parking in a Go Service with Redis

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Pandula Weerasooriya

Making sense of HTTPS

Image by Freepik

12 min readMay 20, 2023

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Making sense of HTTPS

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Pandula Weerasooriya
in
Better Programming

How To Use the “thiserror” Crate in Rust

7 min readApr 29, 2023

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How To Use the “thiserror” Crate in Rust

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4

Pandula Weerasooriya

Data modelling patterns in MongoDB

Although MongoDB is often described as a schema-less database, where schemas can be modified without issuing `alter table` queries as in a…

9 min readFeb 10, 2023

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Data modelling patterns in MongoDB

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Pandula Weerasooriya

A simple wait-group implementation in Rust

When writing concurrent code in Go, wait-groups are used ubiquitously as an important piece of arsenal for syncing go-routines. However, in…

4 min readJul 16, 2022

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A simple wait-group implementation in Rust

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Pandula Weerasooriya

Reading and writing multiple records to a file with protobuf format using Go

Protocol buffers are a flexible, efficient, automated data serialization mechanism developed by Google. It’s language-neutral…

6 min readAug 7, 2021

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Reading and writing multiple records to a file with protobuf format using Go

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1

Pandula Weerasooriya

How to rename or replace an Elasticsearch index with zero downtime

Recently I worked on a project where I had to replace an ES index using a new dataset every day. The data was coming from a public…

3 min readJun 13, 2021

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How to rename or replace an Elasticsearch index with zero downtime

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Pandula Weerasooriya

Unicode, UTF-8 explained with examples using Go

Unicode and utf-8 are two topics that I’ve always had a lot of trouble wrapping my head around. Although I can memorize specifying…

9 min readOct 4, 2020

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Unicode, UTF-8 explained with examples using Go

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Pandula Weerasooriya

Demystify connect in react-redux (Part 1, closures & higher order components)

The natural journey of a React developer is to build a few toy applications using idiomatic React with stateful class components and a…

9 min readMay 23, 2020

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Demystify connect in react-redux (Part 1, closures & higher order components)

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Pandula Weerasooriya

Why Comfortably Numb is my favorite song

Prelude

7 min readMar 22, 2020

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Why Comfortably Numb is my favorite song

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Pandula Weerasooriya

Pandula Weerasooriya

A fullstack engineer who's passionate about building data intensive products and distributed systems. My stack includes Golang, Rust, React, NodeJS and Python.

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