Why?

I wrote a lot. And in my writings I use timestamps, dates, times, time-ranges.

I use following datetime formats

• 2020–11–01
• 15–18
• 14:58

For them I used custom bash scripts which were copying to clipboard the date formats I wanted. These scripts were manually added to Linux’s custom shortcuts.

Example of bash script:

#!/bin/sh
alias setclip='xclip -selection c'
alias getclip='xclip -selection clipboard -o'
printf $(date +"%Y-%m-%d") | setclip

Initially, I was really happy but after some time number of custom scripts increased. I had difficulties with remembering them.

How?

I stumbled to Ulauncher and it is downed on me that I could…

How it started

I wanted to send emails to my users on https://weekhabit.paraboly.com.

First attempt: mail sending services

Of course, I started with mail sending services like SendGrid, Mailchimp, SendInBlue. They are awesome services but I faced with various difficulties:

• one was asking to buy a block of emails while I wanted to fly in free limits because user base is small now.
• in one I couldn’t even register
• one had small UX error where I couldn’t test my mail template because I removed sender but I couldn’t understand it from error.

Another attempt: Amazon SES

For introduction, Amazon SES

• is email service, supporting sending emails from CLI and SDKs.
• doesn’t have…

Problem

We have many microservices that run on multiple deployments. I wanted to add security by using Keycloak with the help of JWT.

Solution

One of the earliest solution was to use Keycloak Js Adapter. Yet, Keycloak JS adapter requires following:

var keycloakConfig = {
    clientId: 'nodejs-microservice',
    bearerOnly: true,
    serverUrl: 'http://localhost:8080/auth',
    realm: 'Demo-Realm',
    credentials: {
        secret: '62c99f7c-da55-48fb-ae4e-a27f132546b7'
    }
};

which seems cumbersome way of doing this.

I thought there must be more simple way, I just wanted to validate requests.

That’s why I liked Spring Boot approach which is:

• include package

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-oauth2-resource-server</artifactId>
</dependency>

• add one line config

spring.security.oauth2.resourceserver.jwt.issuer-uri = http://localhost:8080/auth/realms/appsdeveloperblog

…