Discover @jesperancinha Open Source projects

João Filipe Sabino Esperancinha (@jesperancinha)

jesperancinha

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Global Rank 118,369 (Top 5 %)
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Registered over 9 years ago
Most used languages

Kotlin
54.2 %

Java
18.1 %

Scala
5.6 %

Go
4.2 %

Python
4.2 %

HTML
2.8 %

Shell
2.8 %

TypeScript
2.8 %

Clojure
1.4 %

Rust
1.4 %

Makefile 1.4 %

PHP
1.4 %
Location 🇳🇱 Netherlands
Country Total Rank 2,079
Country Ranking

Kotlin
44

Clojure
124

Scala
157

Makefile 179

Java
621

Go
731

Rust
875

HTML
987

TypeScript
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Shell
1,263

PHP
3,241

Python
3,832

good-story

An investigation and comparison between Kotlin and Java on an engineering level. Since beauty is in the eye of the beholder, this repository is not meant to evaluate Java or Kotlin on an aesthetic level.

concert-demos-root

This project is built in order to compare and illustrate differences between MVC and Reactive Web design patterns.

vma-archiver

Video Media Archiver

whiskers-kotlin-native

This is a set of command line elements that we can run and install in our system created in Kotlin and Generated using the Kotlin Native compiler

staco-app

This application is made as a DEMO to illustrate the use of localstack as a possible way to efficiently learn how the AWS ecosystem works

video-series-app

This is an example project to to offer you a very simple example of a CQRS architecture.

moving-objects-service-root

The goal of this mini-project is to introduce you to two important monitoring tools in the software landscape These are prometheus and grafana. In this project you will find implementations using micrometer and a store for metrics

your-finance-je

Using JWT in KumuluzEE. Two solutions are provided to understand how simple the JWT authentication/authorization system actually is.

markdowner

Markdowner is a parser project exclusively made for mardown files.

project-signer

sea-shell-archiver

This is web application made specifically to study a reactive archiitectur.

jeorg-kotlin-test-drives

Kotlin studies. Includes Project Arrow, Kotlin Coroutines, Flows and More

bridges-surveillance-story

This application uses event sourcing to serve the logistics for a bridge management system.

json-to-builder-pattern

Interprets a json string object and creates a builder based on the Java builder pattern

advanced-library-management

Using Resilience4J, this is a Demo project which uses a Library as background and manages all its requests. This library can rent books online and the usage rate is extremely high. There is a reactive way to access, which is the one normally used, but sometimes, the system needs a bit of help from an old machine running a non-reactive MVC Spring application using JPA. Let's make this in Kotlin and find the best solution!

jeorg-spring-test-drives

This project is intended as a study tool for the Spring Framework. This includes Spring and Spring Boot. It includes Java and Kotlin implementations. It is also a source of Mockk, Kotest and Jupiter 5 combined examples.

news-cast-explorer

This project explores the saga architecture for two patterns. The Choreograhy and the Orchestration

jeorg-security-defense-test-drives

The goal of this repository is to create a tool which users can install as a service and with that, have their phishing emails automatically sent to whatever user map them to. I will only make an official release of this when I'm absolutely sure of a couple of things. One is that the wrong mail doesn't get emailed to a phishing reporting service and make sure that to the best of my knowledge, the phishing emails are reported by the minute you receive them. This will give pirates and hackers a lot less time be able to escape. All of this comfortably knowing that no script will be run from the emails received.

healthy-cameras

Demo on Kong in a system where several cameras watch over a building and we need to constantly monitor their statuses

asnsei-the-right-waf

This repo is the initial repository for all my talks drafts. Everything begin with a sketch and this repo is super experimental and comprises of several technologies

performance-parsers

This project is to analyse different ways to parse and run through the three most common ways of exchanging message through the network.

mancalaje

kitten-house-care-parent

jesperancinha

performance-projects

inner-text-searcher-go

catcher-app-android

buy-odd-yucca-concert

Study of the Kong Framework

favourite-lyrics-app

Favorite lyrics is a project exploring Hexagonal Architecture.

jeorg-algorithms-test-drives

Algorithm Study Project in different languages

from-paris-to-berlin-circuit-breaker

This project is an investigation of Hystrix in the Kotlin language

jeorg-spring-master-test-drives

Spring Master 5 Test Drives is a repo about studying the Spring Framework in depth.

finantial-transactions-akka

rockstars-manager

This simple project is a website to manage Rockstars

sound-garage

A JAVA project that explores sound management

images-go

This library is to give support to image handling for the GoLang projects in Steelzack-Go

image-train-filters-web

This is an Image transformation webservice where we can see 3 algorithms performing updates on images. It implements a contour for images, the Kuwahara blur filter and finally an algorithm I made myself called chartizate. The latter creates images where the foreground is written text.

multi-image-comparer

Implements most common used methods for image comparison with the goal of making a case study between the different proposed algorithms

med_dicom_service

A simple service to load, store and display dicom tags for different files

radioactive-narwhals-shop

This repo wants to show examples of how sequences can be used and how code can be made clean and readable using extension functions. It also tries to unlock the misconceptions about the usages of BigDecimals and how solutions like using Long everywhere may not be the best possible option.

security-test-drives

A project to study known vulnerabilities

matrix-anywhere-android

library-books

jeorg-scala-test-drives

Study project on all things scala related

car-lease

rust-test-drive

Just a rust test drive project that maybe turns out to be a great project

coffee-paradigms

The goal of this project is to simulate multiple people using coffee machines throughout a specific period of the day. This is not a game, but only a configurable simulator which will allow you to calculate how long fellow employees and colleagues can take to have coffee.

web-parser-csv

Web parser. Part of an old project of my archive. It's still in the making and checkin in it's raw left status

base-converter-android

orbit-simulator

ping-app-android

It just pings! But it will do more

math-service-scala

airflights-clojure

Experimental project to understand Clojure using airflights as a theme

image-train-filters-android

Image train filters for android

OSSRH-51043

project-armona

buy-odd-polymer

test-drives

Support repository for mini-blogs, mini-posts, mini-articles for my website @ http://joaofilipesabinoesperancinha.nl.

jeorg-camel-test-drives

Camel Test Drives Project

jeorg-vertex-osgi-testdrives

airports-app

jeorg-jdk-test-drives

A selection of test modules for the JDK

math-lib

Just a math repository with independent libraries to support different mathematical operations in math

kart-races

Made long time ago. Status is under construction

string.distance

Library to support distances between strings according to several algorithms

timezone-app-utility-android

jeorg-micro-test-drives

image-sizer

This is a small command line project to allow quick command line resizing of images without the need of a graphics interface

jeorg-android-test-drives

Test drive for android

goblins-tale-strongswordfell

xml-adder

This is a small program to find specific elements, attributes or nodes defined by a set of xpath instructions to which a set of attributes or nodes can be specified to be automatically added

isbn-stacks

Worldwide, the ISBN number is used. It is a massive collection of numbers which uniquely identify books per type and edition. Based on that, this project is here to evaluate the recent experimental project from the spring team called Spring-FU. As DSL that, when released, it will allow Spring applications to be developed without the use of annotations. The main argument is that annotations bring unnecessary overhead to the application and that processing time can be avoided.

note-manager-app

A note manager application that implements a search engine for story telling texts. It feeds a UI and the idea is to show how can we, with Arrow, use its benefits to create a more robust, resilient, back-pressure resistent, innovative application with support for high capacity and high availability.

string-array-paradigms

This project is a performance study of how REGEX can work better or worse considering different cases. It is called string array paradigms because it actually studies Strings and Arrays in a very deep level.

public-transport-declarer

A public transport declaration calculator. It is used to automatically filter out all relevant travelling segments when travelling with a general public transport card. It receives a PDF file as an input and generates a CSV file with the results as Local Date / Complete value.

jeorg-cloud-test-drives

Study project for all things cloud. Spin-offs will happen when detailing

jeorg-java-ee-test-drives

Test Drives for Java Enterprise edition