Skip to content

Instantly share code, notes, and snippets.

View arvindkgs's full-sized avatar

Arvind Kumar GS arvindkgs

17 followers · 19 following
View GitHub Profile
@arvindkgs
arvindkgs / README.md
Last active April 30, 2026 05:11
[Plain Java Utils] Java helper snippets #java #snippets

// Source - https://stackoverflow.com/a/62434813 // Posted by gabriel119435, modified by community. See post 'Timeline' for change history // Retrieved 2026-04-30, License - CC BY-SA 4.0

() means no input/output (void)

Supplier : () -> x

Consumer : x -> ()

@arvindkgs
arvindkgs / kafka.txt
Created October 28, 2025 08:37
[Kafka] Kafka development tips #kafka #local #debug #tips
# WARNING: This will delete all your topics and kafka storage
# Generate UUID
export KAFKA_CLUSTER_ID=`kafka-storage.sh random-uuid`
# Format storage
kafka-storage.sh format -t $KAFKA_CLUSTER_ID -c ~/Software/kafka_2.13-4.0.0/config/server.properties
# Start Server
kafka-server-start.sh ~/Software/kafka_2.13-4.0.0/config/server.properties
@arvindkgs
arvindkgs / README.md
Created February 21, 2022 14:50
Stripe Subscription with Billing cycle anchor does not apply discounts on initial invoice

I am creating a subscription with billing_cycle_anchor set to first day of next month. Below is the params passed when creating subscription

{
  "metadata": {
    "tenant_id": "2cf19732-0c7b-42e4-a0a2-90fd9c0e7111"
  },
  "collection_method": "send_invoice",
  "days_until_due": "30",
  "backdate_start_date": "1645171200",
 "items": {
@arvindkgs
arvindkgs / Tempo.md
Created October 29, 2021 15:40
[Tracing]

to print trace id in logs "--distributor.log-received-traces=true"

@arvindkgs
arvindkgs / Docker Compose.md
Last active October 24, 2021 06:37
[docker] #docker #local-setup #dev-env

Start

docker compose up

start options

Run in background, -d : docker compose up -d

Stop

docker compose down

options

Remove all images and rebuild docker compose down --volumes --remove-orphans --rmi all

@arvindkgs
arvindkgs / README.md
Last active September 5, 2021 12:57
zshrc
  1. Quickly jump to bookmark'd folders: goto @project
    Setup:
    1. create directory ~/.bookmarks
    2. Add below to .zshrc
    if [ -d "$HOME/.bookmarks" ]; then
    export CDPATH=".:$HOME/.bookmarks:/"
    alias goto="cd -P"
fi
@arvindkgs
arvindkgs / iterm2.md
Last active August 24, 2021 06:51 — forked from squarism/iterm2.md
iterm2 cheatsheet

Tabs and Windows

Function Shortcut
New Tab ⌘ + T
Open Tab in specific profile ⌘ + o
Close Tab or Window ⌘ + W (same as many mac apps)
Go to Tab ⌘ + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction ⌘ + Option + Arrow Key
@arvindkgs
arvindkgs / Disable.md
Created July 31, 2021 11:44
[spring-security] Spring security 
@Configuration
public class ApplicationSecurity extends WebSecurityConfigurerAdapter {

    @Override
    public void configure(WebSecurity web) throws Exception {
        web
           .ignoring()
               .antMatchers("/**");
 }
@arvindkgs
arvindkgs / H2.md
Last active October 8, 2021 14:01
[Java Date Time] DateTime Handling

When saving dates in UTC, H2 will not save in UTC. To force setting all datetimes in UTC timezone in Junit add below to test case

@BeforeClass public static void setTimezone() { TimeZone.setDefault(TimeZone.getTimeZone("UTC")); }

@arvindkgs
arvindkgs / README.md
Last active April 10, 2024 10:40
[Mac] MacOS tools and applications #devtools

My setup and customization on MacOS, to make me more productive

Below are applications I install first thing on a new Mac. They have become a part of all my Macs and they are the first things I install on a new Mac
  1. Chrome - Personal browsing
  2. Arc - Corporate browsing
  3. Google Drive - My personal documents sync
  4. pCloud - Misc sync
  5. Copy ssh keys into .ssh folder and test using https://docs.github.com/en/authentication/connecting-to-github-with-ssh/testing-your-ssh-connection
  6. (If using dotfiles) Backup .zshrc other files and migrate dotfiles - https://www.atlassian.com/git/tutorials/dotfiles
  7. Homebrew - package manager