MuleSoft Hotel Booking Application: Build a Real-World Integration Project in 30 Days | A Complete Hands-On Guide to Mule 4, REST APIs, RAML, DataWeave, MySQL, Booking Workflows, Error Handling, Testing, Deployment, and Interview Preparation | 🇮🇳 ₹999 | 🇺

🏨 Build a complete MuleSoft project from scratch: a hotel booking platform you can run, test and explain in interviews.

Have you finished a MuleSoft course but never built a full project? This 506-page guide takes you through one, day by day, in simple English. You build the StayEase Hotel Booking Platform for a fictional hotel group, from an empty laptop to a deployed application.

📅 30 days, step by step

Every day has clear goals, step-by-step instructions, complete code, Postman tests, common errors and fixes, exercises, a checklist and interview questions.

🧩 What you will build

• 🔌 14 REST APIs for hotels, rooms, availability, customers and bookings
• 📜 A complete RAML 1.0 contract with APIkit
• 🔄 DataWeave 2.0 for pricing, validation and data mapping
• 🗄️ A MySQL 8 database with constraints, indexes and sample data
• 💳 A mock payment service that can approve, decline, time out and fail

🛡️ The hard parts, explained clearly

• 🚫 Stop overbooking when many customers book the same room at once
• 🔁 Stop duplicate bookings with idempotency keys
• ⏱️ Handle payment timeouts safely, without double charges
• ⚠️ One error format for every API
• 🔍 Trace any request with correlation IDs and structured logs
• 🔐 Protect the APIs with client credentials, roles and encrypted secrets

🧪 Testing and deployment

• ✅ A Postman collection with 55 requests and 156 automatic checks
• ⚡ A script that sends many bookings at the same moment to prove the room is booked only once
• 📦 Git, Maven, environment setup and CloudHub 2.0 deployment steps
• 🩺 Monitoring, troubleshooting tables and incident practice

🎤 Interview preparation

• 💬 88 interview questions with full answers, all based on the project you built
• 🗣️ A ready 2-minute project explanation
• 🤝 Guidance on describing it honestly as a hands-on project

👓 Easy to read

Large text, eye-friendly colours, clear diagrams and colour-coded tip boxes.

📁 Companion files included: all Mule apps, SQL scripts, RAML, the Postman collection and the concurrency test.

🎯 Who it is for: MuleSoft learners, freshers, Java and .NET developers moving into integration, and anyone preparing for MuleSoft interviews.

ℹ️ StayEase Hospitality Group is a fictional company. This book is an independent educational guide and is not endorsed by MuleSoft or Salesforce.