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Two-Phase Commit (2PC) in Microservice Architecture 📌 Objective

This project demonstrates how to implement and simulate a distributed transaction using the Two-Phase Commit (2PC) protocol across three microservices:

Order Service (localhost:8081)

Payment Service (localhost:8082)

Coordinator Service (localhost:8080)

🏗️ Architecture Overview

  1. Order Service

    Manages order placement.

    Exposes:

     POST /prepare_order

 POST /commit_order

 POST /rollback_order

  2. Payment Service

    Handles payment processing.

    Exposes:

     POST /prepare_payment

 POST /commit_payment

 POST /rollback_payment

  3. Coordinator Service

    Orchestrates the 2PC protocol.

    Steps:

     Sends prepare to services.

 If all succeed, sends commit.

 If any fail, sends rollback