Wellington Pereira (@wellingtoncosta)
  • Stars
    star
    402
  • Global Rank 69,923 (Top 3 %)
  • Followers 121
  • Following 78
  • Registered over 9 years ago
  • Most used languages
    Java
    48.8 %
    Kotlin
    41.5 %
    JavaScript
    7.3 %
    HTML
    2.4 %
  • Location 🇧🇷 Brazil
  • Country Total Rank 971
  • Country Ranking
    Kotlin
    39
    Java
    81
    JavaScript
    7,287

Top repositories

1

convalida

A simple, lightweight and powerful field validation library for Android.
Java
204
star
2

android-kotlin-coroutines

A simple Android project using asynchronous programming with Kotlin Coroutines.
Kotlin
47
star
3

android-mvvm-databinding-kotlin

A simple Android application project using MVVM + Data Binding + Retrofit + RxJava and written in Kotlin.
Kotlin
23
star
4

stocka

A sample project to demonstrate Kotlin Multiplatform running on Android, iOS, Web and Desktop.
Kotlin
15
star
5

spring-boot-kotlin-demo

A simple REST API using Spring Boot + JPA + Flyway + Spring Tests and written in Kotlin.
Kotlin
8
star
6

android-databinding-playground

A playground app about using Android Data Binding Library.
Kotlin
8
star
7

spark-java-rest-api

A simple REST API using SparkJava micro framework.
Java
7
star
8

java-bytecode-playground

A playground project about Java Bytecode runtime manipulation.
Java
6
star
9

feed

A social media Android app that shows posts and its comments made by users.
Kotlin
6
star
10

curso-android-congresso-ti

Projeto base para o Curso de Desenvolvimento Android ministrado no Congresso de TI.
Kotlin
5
star
11

viewmodel-dagger

A tiny set of classes that helps you to use Android ViewModel with Dagger 2.
Kotlin
5
star
12

my-movies

Full-stack application to register and favorite movies, built using Java with Spring Boot, AngularJS and Android.
Java
4
star
13

fake-contacts-api

A simple fake contacts API for testing web and mobile applications.
JavaScript
4
star
14

spring-microservices

Spring Boot and Spring Cloud microservices sample implementation.
Java
4
star
15

android-mvvm-databinding

A simple Android application project using MVVM + Data Binding + Retrofit + RxJava.
Java
3
star
16

fake-contacts-json

A JSON file that contains a list of fake contacts to be consumed in demo projects.
3
star
17

bankslips-api

A simple REST API to generate bank slips.
Java
3
star
18

github-users-android

Aplicativo simples para consultar informações sobre os usuários do GitHub.
Java
3
star
19

ees-devops-desenvolvimento-web

Repositório do material da disciplina Desenvolvimento Web da Especialização em Engenharia de Software com DevOps da UECE.
Java
3
star
20

android-clean-boilerplate-demo

A sample project to demonstrate Clean Architecture in Android.
Kotlin
3
star
21

code-smells

An example about bad smells, applying refactoring to improve the code design.
Java
3
star
22

javalin-kotlin-sample

A simple demonstration about use of Javalin + Kotlin + Koin + Exposed.
Kotlin
2
star
23

android-custom-views

A proof of concept about using custom views in Android.
Kotlin
2
star
24

my-collections-api

A Spring Boot REST API to register books and movies.
Java
2
star
25

spring-microservices-kubernetes

A demonstration of a Spring Boot microservices application managed by Kubernetes.
Java
2
star
26

android-workdev-talk

Project from my talk in WorkDev about Android + Data Binding + MVVM + Live Data.
Kotlin
2
star
27

github-users-react

A simple React application that consumes GitHub API.
JavaScript
2
star
28

comparative-study-convalida

Comparative about field validation strategies using Convalida library, Android Saripaar library and codes written manually.
Java
2
star
29

wellingtoncosta.github.io

My website. 🌍
HTML
2
star
30

hello-world-annotation-processing

The famous "Hello, World!" using Java Annotation Processing.
Java
2
star
31

android-anko-example

A simple Android application that uses Anko as layout engine.
Kotlin
2
star
32

spring-cloud-microservices

A sample micorservices application using Spring Cloud.
Java
2
star
33

jasca

Analyze your Java source code at compile-time.
Java
2
star
34

builder-generator

A simple builder classes generator for Java.
Java
1
star
35

http-cat-android

An Android app to see HTTP status codes as cats. Inspired by http.cat website.
1
star
36

book-hub

A simple Android app to register books and mark it as favorite.
Kotlin
1
star
37

ktor-sample

A simple backend application using Ktor Web Framework.
Kotlin
1
star
38

source-checker

A simple static source code analysis at compile-time for Java projects.
Java
1
star
39

maccommerce

Maccommerce - A security experiment in a microservice-based e-commerce system.
Kotlin
1
star
40

express-graphql-example

Study project using Express and GraphQL.
JavaScript
1
star
41

metaprogramming-walkthrough

This repository contains a serie of examples about metaprogramming in Java and Kotlin.
1
star
42

android-rxbus-demo

A demonstration about how to manipulate events using RxJava.
Kotlin
1
star
43

data-structures-java

Data structures written in Java.
Java
1
star
44

export-to-file

A simple Java Swing application that exports data in CSV or JSON format.
Java
1
star