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Sagar Kakkala's World

Welcome to Sagar Kakkala's World, your go-to destination for learning DevOps and mastering personal finance. Dive into topics like Kubernetes, GitOps, investment tips, and insurance planning. Whether you're advancing your career or securing your financial future, we simplify complex ideas for your growth. To explore specific topics, click on "Contents of Blog" to navigate directly to the content of your choice.

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💻 DevOps Maaya - Workshop 3 - September 13, 2026 | Login Page, JWT Token and Admin Dashboard

September 12, 2026

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💻 DevOps Maaya - Workshop 2 - September 6, 2026 | Cart, Product Details and Registration Page

Now, lets configure our Frontend as in previous workshop, we mostly focused on Backend. here, we will concentrate more on Frontend and how it is done. Let us add functionalities - Clear explanation of code would be given in the video let us add Frontend src/context/CartContext.jsx import { createContext, useContext, useState } from "react"; const CartContext = createContext(); export function CartProvider({ children }) { const [cartItems, setCartItems] = useState([]); const addToCart = (product) => { setCartItems((currentItems) => { const existingItem = currentItems.find( item => item.id === product.id ); if (existingItem) { return currentItems.map(item => item.id === product.id ? { ...item, quantity: item.quantity + 1 } : item ); } return [ ...currentItems, { ...product, qua...

Day-0 | DevOps Overview and Guidance | Sagar Kakkala's World

For Telugu: For English: We will discuss an Overview of DevOps in very simple and Basic Overview Let us say, A Person is running Painting business with Alex Paints and he wants to expand his Business in online, He wants to have his own website and application for his business, And also let us assume that he has very Big Company of his Own. Generally since he has the Product, his company is said to be Product Based Company and now he approaches companies like TCS, Accenture ,Infosys, etc..which will be here called as Service Based Companies. Now the Traditional Method is said to be Waterfall Method. What happens in this Method? Lets say Alex Paints asks for Website, Service Based Company Develops website and then ask for Review for Client (Client is Alex Paints). In Case, the client asks for changes, Entire Website application code has to be changed. This makes challenging to Develop code and also Lot of Time Taking Process, to counter attack this, Most companies...

💻 DevOps Maaya - Workshop 3 - September 13, 2026 | Login Page, JWT Token and Admin Dashboard

In this Workshop3, we will try to build Admin Dashboard and also user login based on roles, if user logged in as an admin, different panel, same way .. logged in as normal user has restriction to Admin Dashboard. Before we begin this Workshop, we will modify existing code that we developed at Workshop2, you can get full code here at DevOps Workshop2 Github As in previous Workshop, we stopped after Registration Page. Now here let us start with Login Page Login Page backend/src/main/java/com/maaystore/backend/dto/LoginRequest.java package com.maaystore.backend.dto; import jakarta.validation.constraints.Email; import jakarta.validation.constraints.NotBlank; public class LoginRequest { // User's email address @NotBlank(message = "Email is required") @Email(message = "Invalid email format") private String email; // User's password @NotBlank(message = "Password is required") private String password; // Get email ...

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