5 Tips for Becoming a Senior Software Developer

If you like this video, you can find more on my YouTube channel :) * 00:00 intro * 00:22 #1 Figure out the role * 01:14 #2 Act like a senior developer * 02:06 #3 Be proactive in finding issues * 02:50 #4 Take more responsibilities if possible * 04:13 #5

Working as a Backend Engineer in Merpay

If you like this video, you can find more on my YouTube channel :) * 00:00 intro * 00:38 A typical day: Morning * 01:40 A typical day: Lunchtime * 02:00 A typical day: Afternoon * 03:17 Language * 04:21 Team workflow * 05:25 Development workflow * 05:58 Career path * 07:

4 Tips to Avoid Bus Factors and Have Better Software Maintainability

If you like this video, you can find more on my YouTube channel :) Reference Links * Coding best practice * Pair programming Transcript How to avoid the bus factor in software development? In today’s video, I’m sharing my experience in building a better workflow to prevent the pain and trouble

Contribute to Open-Source Software: A Beginner's Guide

If you like this video, you can find more on my YouTube channel :) Transcript How to build a strong profile for your next job? Or your first job? If you don’t have a lot of commercial experiences, one good way to do it is to contribute to open-source projects.

Finally Started My YouTube Channel About Software Development!

Hi! As some of you might already know, I've started by own YouTube channel to share my experience in software development. I've been thinking about sharing those experiences these years but couldn't really find a good time to start. Since the pandemic started I

Replace the root user on ubuntu

When booting up an Ubuntu server, one of the first things to do is to create a new user and disallow root user login. This is for security reasons, since every linux server has a root account by default, it's easy for malucious users to force into the

Write Your Own Go Linters with Parser Package

This post is also posted on Mercari Engineering Blog as one of the entries on Merpay Advent Calendar 2019 What's a Linter? Why Do I Need One? Linters are tools that help to improve code readability, consistency, and maintainability by catching code smell and anti-patterns. Linters play an

Method Has Pointer Receiver Error

StackOverflow Reference If an interface variable is assigned with a non-pointer value of a concrete type. There will be an error like: ./main.go:31:4: cannot use x (type X) as type Y in assignment: Foo does not implement Y (Z method has pointer receiver) The example code is

A Quick Start on Protocol Buffer with Go

Create a .proto file First, we need to install buffer protocol tool: # Protocol Buffer compiling tool brew install protobuf # With Go plugin go get -u github.com/golang/protobuf/protoc-gen-go Then we create a quick example file, like person.proto: syntax="proto3"; package main; message Person { string name

Docker Swarm Basic Commands

Basic commands docker swarm init docker node ls docker service create --name alpine alpine ping 8.8.8.8 docker service ls docker service ps alpine docker service logs alpine docker service update alpine --replicas 2 docker container rm -f 759896ca6eb7 # if a replica is destroyed, swarm will rebuild it

Docker basic commands

Conainer commands Commands to run a container: docker container ls -a docker container rm 123 456 # you only need first 2-3 characters for identification docker container run --publish 8080:80 --name ng nginx docker run -d -p 3801:3306 --name mysql -e MYSQL_ALLOW_EMPTY_PASSWORD='yes' mysql:

Retrieving Field Name & Value in Struct

We can use reflect package for retrieving field name and value dynamically from a struct. package main import ( "fmt" "reflect" ) type Foo struct { aa string ff string } func main() { foo := Foo{"x", "y"} t := reflect.TypeOf(foo) // => Returns a type Type