IRCTC System Design | Railway Online Reservation System for Interviews

IRCTC online ticket booking system is a common system design interview question and is a high scalable and fault tolerant ecommerce system.

This system plays a major role in online ticket booking for Indian Railways.

I have talked about the software architecture of the IRCTC system with detailed scope, key components, capacity planning, database design etc.

This design is based on microservice architecture with distributed transaction. Also, I have talked about SAGA’s Event choreography distributed transaction and rollback.

This presentation can be used as reference for your college for Railway Reservation system project.

Below are the Key API's covered in this video.

accountService ( app_key, username, password, address)
searchService( app_key, startLeg, endLeg, date, class)
detailsService( app_key, startLeg, endLeg, date, class)
bookingService( app_key, startLeg, endLeg, date, class)
paymentService( app_key, cardInfo)
notifyService( app_key, email, SMS, userInfo, TicketInfo)
cancelService( app_key, PNR)

There are also below points about building the robust system.
Scalability
Fault tolerant
High Availability
Performance
Backup
Deployment
Security
Monitoring
Logging
Software’s used
Storage capacity

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This system design interview question is asked in companies like Amazon, flipkart, Google and many startup companies.

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