vinkrish

clear
sudo apt=get update && sudo apt-get upgrade

whoami
hostname
ls
ls -l

vinkrish

Setting up a repo

$ git init
will initialize git repository in current directory
(or)
$ git clone ssh://vinay@example.com/path/to/my-project.git
$ cd my-project

$ git remote -v
to know about remote repos

vinkrish

vi ~/.bash_profile
vi /Users/vinkrish/.bash_profile

export JAVA_HOME=$(/usr/libexec/java_home)
source ~/.bash_profile

echo $JAVA_HOME
/usr/local/Cellar/openjdk/17.0.2/libexec/openjdk.jdk/Contents/Home

earlier JAVA_HOME:

vinkrish

LEARN KUBERNETES BASICS:

Create a Cluster:

minikube version
minikube start
kubectl version
kubectl cluster-info
kubectl get nodes

vinkrish

let findAndOrCondition= (obj) => Object.entries(obj).filter(([key, value]) => key === 'condition' && value === 'and' || value === 'or');

const constructCondition = (conditionString, rule_object) => {
    if(findAndOrCondition(rule_object).length > 0) {
        conditionString.val += '('
        let rules = rule_object.rules
        console.log('rules', rules)
        for(var i=0; i<rules.length; i++) {
            let rule_obj = rules[i]
            if(findAndOrCondition(rule_obj).length > 0) {

vinkrish

from os.path import join, dirname, abspath
import xlrd

xlrd.xlsx.ensure_elementtree_imported(False, None)
xlrd.xlsx.Element_has_iter = True

fname = join(dirname(dirname(abspath(__file__))), 'dir_name', 'file_name.xlsx')

xl_workbook = xlrd.open_workbook(fname)

vinkrish

from os.path import join, dirname, abspath
import psycopg2
import psycopg2.extras
import xlrd

xlrd.xlsx.ensure_elementtree_imported(False, None)
xlrd.xlsx.Element_has_iter = True

fname = join(dirname(dirname(abspath(__file__))), 'dir_name', 'file_name.xlsx')

vinkrish

Visual Studio Code:
Ctrl+' = Toggle Terminal
Cmd + P = Go to File
Cmd + o = Opens file in finder
Cmd + Shift + k = Delete Line
Shift + Alt + F = Format with Indentation
Shift + Cmd + L = multi-word selection
Cmd + Alt + Up/Down = Selects in a column directly up or down from the cursor's position
Ctrl + k + 0 = Fold all section
Ctrl + k + j = Unfold all section

vinkrish

List of links from Designing Event-Driven Systems by Ben Stopford

Designing Event-Driven Systems book by Ben Stopford contains a lot of useful links to papers, books, documentation and definitions related to event driven design and Kafka. I just extracted them as reference for the future and added some groups to show them better.

You can read the book for free

• A Crystal Ball to Prioritise Technical Debt in Monoliths or Microservices: Adam Tornhill's Thoughts
• Brewer's CAP Theorem <= :julianbrowne

vinkrish

//return an array of objects according to key, value, or key and value matching
function getObjects(obj, key, val) {
    var objects = [];
    for (var i in obj) {
        if (!obj.hasOwnProperty(i)) continue;
        if (typeof obj[i] == 'object') {
            objects = objects.concat(getObjects(obj[i], key, val));    
        } else 
        //if key matches and value matches or if key matches and value is not passed (eliminating the case where key matches but passed value does not)
        if (i == key && obj[i] == val || i == key && val == '') { //