Java Developer @TCS (Java, SpringBoot, PostgreSQL, JPA, Hibernate, Rest API, AWS) | Building NitiKart, an eCommerce platform | Problem-solving
Joined March 2021
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- Following 39
- Followers 16
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20 Photos and videos
Pinned Tweet
15 Dec 2025
Day 1 π
Starting NitiKart β a Spring Boot E-commerce backend project.
Focus: clean architecture, real-world backend practices.
Tech: Java | Spring Boot | PostgreSQL
#JavaDeveloper #backend #buildinpublic #springbootjava
4
65
Feb 22
Just built a URL Shortener with #SpringBoot, #Java, and #PostgreSQL!
π Converting long URLs into short, shareable links. Loved working on the Base62 encoding logic.
Frontend with Tailwind/JS.
#BuildInPublic #springboot #Backend
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Jan 22
Orders module completed in NitiKart β
PostgreSQL is fully integrated and the order flow is working end-to-end π
Next up: AWS deployment βοΈ
#SpringBoot #JavaBackend #PostgreSQL @β¨Learn In Public Botβ¨
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Jan 19
π Address Module completed for my Spring Boot eCommerce project NitiKart!
CRUD APIs, user-wise address mapping, validation & exception handling done.
πΊ Full demo on YouTube: @CodeNiti8
#SpringBoot #Java #BackendDev #BuildInPublic
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Jan 11
π Cart Module completed for my Spring Boot eCommerce project NitiKart
Add β Update βοΈ Delete β cart items with proper quantity & price handling.
π₯ Full working flow video coming soon on YouTube Code Niti π
#SpringBoot #Java #Backend #LearningInPublic #NitiKart
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Jan 4
π Done Security module -NitiKart
β
Signup | Login | JWT | Cookies | Secure APIs | Logout
πΈ Postman responses code snippets attached
Yt: youtube.com/@CodeNiti8
#SpringBoot #Backend #Java #SDE1 #JWT
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Jan 1
Day 13 π
Implemented CustomUserDetails & UserDetailsService in my Spring Boot eCommerce project #NitiKart
π DB-backed authentication
π Role-based security foundation
Java | Spring Security | JWT
#BackendDev #SpringBoot #Java #SpringBoot #LearningInPublic
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28 Dec 2025
Day 12 π
Completed User, Role & Address models for Spring Security in my Spring Boot e-commerce project (NitiKart).
Next: JWT auth, login/signup & security config π
#SpringBoot #Java #JWT #Backend #LearningInPublic
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25 Dec 2025
β
DSA Revision β Sliding Window Pattern
Solved LC 567 β Permutation in String
Key concepts:
β’ Fixed-size sliding window
β’ Frequency matching
β’ O(n) time | O(1) space
Revising DSA pattern
#DSA #LeetCode #SlidingWindow #Java #SDE1 #CodingJourney
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25 Dec 2025
Day 11 update π
β
Implemented JWT Filter & AuthEntryPoint
π Next: Security Configuration
#SpringBoot #JWT #SpringSecurity #BackendDev #NitiKart
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24 Dec 2025
Day 10 β NitiKart π
Completed JWTUtils for Spring Security.
β Generate JWT
β Validate token
β Extract username
Next: JWT filter & security config π
#Java #SpringBoot #JWT #BuildInPublic
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23 Dec 2025
Completed ProductService unit testing using JUnit 5 & Mockito β
All service methods tested.
Next: Spring Security (JWT) π
#Java #SpringBoot #JUnit5 #Mockito #SpringSecurity #BackendDev #NitiKart
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22 Dec 2025
Tested CategoryService in NitiKart β
All methods covered using JUnit & Mockito.
CRUD & exception handling verified.
Next: ProductService π
#Java #SpringBoot #UnitTesting #Mockito #JUnit"
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21 Dec 2025
Day update π
Completed Product module in my Spring Boot project NitiKart β
βοΈ Add / Update / Delete
βοΈ Search by keyword
βοΈ Update product image
βοΈ Postman tested APIs
Next: integrations & enhancements π‘
#Java #SpringBoot #BuildInPublic #BackendDev #NitiKart
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20 Dec 2025
Day 6 β NitiKart Backend π
β addProduct()
β getAllProduct() in ProductService
Next: Remaining product APIs π
#BuildInPublic #SpringBoot #Java #BackendDev #NitiKart
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19 Dec 2025
Day X β NitiKart Backend π
β Implemented ProductDTO
β Created ProductResponse
β Built ProductController
β‘ Next: Product Service layer & business logic
#BuildInPublic #SpringBoot #Java #BackendDev #NitiKart
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18 Dec 2025
Day 4 π
Implemented Pagination for Category in my Spring Boot e-commerce backend (NitiKart).
Cleaner APIs, better performance, scalable data handling.
#Day4 #SpringBoot #Java #Backend #BuildInPublic
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17 Dec 2025
Day 3 β NitiKart π
Added:
β
CategoryDTO
β
CategoryResponse
β
Global Exception Handling (@RestControllerAdvice)
APIs are now cleaner & production-ready.
Next β Pagination & sorting
#SpringBoot #Java #BuildInPublic #NitiKart
ALT ControllerService
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16 Dec 2025
Day 2 β NitiKart π
Built Category APIs using Spring Boot
β
Controller & Service
β
Create GetAll
β
Validations
β
Postman tested
Next: DTOs ModelMapper Exception handling
#Java #SpringBoot #BuildInPublic #NitiKart
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