Low Level Designing (LLD -1) - Flight Booking System | MakeMyTrip | Booking.com | Airlines

[@varsid_sol]

Finally some explanation which actually relates to real life scenarios of interviews.

[@InterviewWithBunny]

Thank you. I know, its very difficult to digest the concept without real life examples

[@amanjain2659]

bookingFlight method should take Schedule as first argument rather than Flight, as Flight class doesn't have any information regarding the flight time, src, dest.

[@InterviewWithBunny]

Yes, you are right. i explained...but mistyped that. Since, you are booking a schedule of a flight. so you should pass the schedule as parmeter for booking

[@kasturikakatkar]

Thank you for the tutorial. Very systematically explained, giving the viewer a good idea of how to present answers.

[@InterviewWithBunny]

Glad it was helpful! Please share the video in your network, if you have found it useful

[@anshulsharma3137]

Amazing explanation, Please make a LLD video for Notification system as well

[@InterviewWithBunny]

Noted

[@naveenvp1362]

Your explanation is amazing for spring boot tech stack..Thanks a lot..

[@InterviewWithBunny]

You are welcome

[@NishantBhadauria]

I think for bookingFlight API we should give Schedule as parameter instead of flight

[@InterviewWithBunny]

Yes, you are right. i explained...but mistyped that. Since, you are booking a schedule of a flight. so you should pass the schedule as parmeter for booking

[@neelshah8225]

Great explanation, simple and to the point. Thanks for the tutorial

[@InterviewWithBunny]

Glad it was helpful!

[@aviralgupta9364]

Hi bro, Can you please change the settings.. I am not able to change video quality . When i am running your video its coming as blur

[@InterviewWithBunny]

Not sure why, but my videos are already uploaded in 2K

[@shashankmishra484]

Hey thanks for this detailed video, it helped a lot Two questions - where will the search functionality exist? I see the function in flightBookingClass which gives us details but is that enough and accepted in an interview ? - can you please share notification and payment system lld ?

[@ashishsubudhi4470]

I suggest to decouple and create a separate Search interface and have have all search functions defined there. Use this Search impl Object inside User, who can perform searches. Say in future, even Flight Admin wants to search, then even they can have Search object in their class and perform Search.

[@dhruvgoel25]

Seats selection can also be one of the functional requirements.

[@jpakash1999]

great explaination

[@nikhilmishra-h2r]

You are taking Seat field inside the Flight Entity and also FlightSeat (which is extending Seat) in the Schedule entity So will both Entities(Schedule and Flight) point to same Table for Seat details or both will manages there own Seat details table in DB.

[@InterviewWithBunny]

Its good to have FlightSeat inside the flight class, rather than seat.

[@amansinghrajawat8258]

Amazing video! Keep making videos like this.😀

[@InterviewWithBunny]

Thank you! Will do!

[@prajwalsugandhi7293]

This question was asked in sde fresher role 😅

[@vivekmogalla5267]

Thanks for this video whic is very useful for designing any webapplication. could you please let me know what tool is best to design this design diagram? or you could let me know what tool you are using in this video

[@InterviewWithBunny]

I was using invision

[@varunsaraf8018]

Very helpful video

[@InterviewWithBunny]

Glad it was helpful!

[@saiveeramanikantakatreddi2848]

I appreciate your work.nice one 👍👍

[@saiveeramanikantakatreddi2848]

Bro,will you share that LLD document

[@saiveeramanikantakatreddi2848]

It will be helpful for making our LLD

[@SafarOnWheels]

Nicely explained 👍

[@InterviewWithBunny]

Thank you 🙂

[@rupeshjha4717]

I think we could have also handled the concurrent seat booking with having a status of locked in seat class and lock it when a user if trying to book that seat for 10min session

[@InterviewWithBunny]

exactly...you can.

[@PrabhatSingh-v8c]

Can u please tell which is the tool you are using to create this diagram and class

[@InterviewWithBunny]

for this video i was using invisionapp.com

[@gurnamansingh479]

Great video. So excited for future videos. Go make some crazy stuff :)

[@InterviewWithBunny]

Thanks

[@AnubhavApurva]

Thank you!

[@EmperorAkashi]

Thanks for the detailed explanation, so in a 1-hour interview, are we supposed to clarify all those and also finish all codings?

[@InterviewWithBunny]

In most of the FAANG interview, there is a separate design round for 1 hour. where u need to explain this one. Coding not required.

[@dvanscollection1413]

Good one.. But only confused about Schedule and Flight. Can we keep Schedule in BookingDetails..

[@InterviewWithBunny]

Each flight have the information about itself. and the list of schedules which it follows. Once a passenger books a particular flight, he is basically booking one of the schedule of a particular flight. so if you want, you can have that schedule entry in your Booking Details.

[@deepakdkrishna1854]

Great!!! Can you suggest how this can be described in terms of working in JIRA (Adding User story) , Epic, Task !!!

[@InterviewWithBunny]

Didn't get your exact questions

[@rohansinha2760]

Great Job !!

[@InterviewWithBunny]

Thank you

[@rohitkuber6230]

A schedule can have multiple flights at the same time right? How can it only constitute a single object of Flight?

[@InterviewWithBunny]

You can have multiple schedule objects. each schedule is linked with a particular flight.

[@ronaksurana4293]

Can you Please share the implementation also

[@yashwantptl7]

Great Content

[@InterviewWithBunny]

Thank you. Please share

[@TahirMirza-gk4tv]

@InterviewWithBunny why there is a need to have flight reference inside schedule class? as Flight class already contains the list of schedule objects which will refer to one flight only?

[@InterviewWithBunny]

true... but if you want to implement your search based on schedule class, we need to find the associated flight, for that schedule.

[@ritikgangwar7126]

nice

[@InterviewWithBunny]

Thanks

[@shikharshiromani2728]

How will the search functionality work? There must be a global place where all the flight details are stored and the search method can query on that. Can you please clarify?

[@InterviewWithBunny]

Within the main FlightBookingSystem we have a ArrayList which will hold all flight related informations

[@_jatin_mittal]

which app are you using for creating these diagrams?🙏

[@InterviewWithBunny]

Invision

[@ayushthakur8703]

great

[@InterviewWithBunny]

Thank you.

[@MonuB-vn2hp]

Dont we have to add code also? classes and spring?

[@InterviewWithBunny]

Mostly, not required in LLD round.

[@akankshagaur845]

Can you please provide the source code if you have it for the flight management system?

[@InterviewWithBunny]

There is no source code. its only white board explaination

[@RohanMiskin]

what tool is used in the video??

[@InterviewWithBunny]

This is invision.

[@wendy5875]

Sir sorry, can tell me your application using create low level design ?

[@InterviewWithBunny]

if i understood your question correctly....i'm using "Invision" tool for explaining the lld

[@CrazyMafia-u6q]

can you share this ppt or doc file

[@Rajdweep]

bro you mentioned above 5yrs exp, and here im with 1yr exp and the company i applied for is gonna ask me lld qs like this in the next round :(

[@InterviewWithBunny]

applied for google? even google didnt expect that :P

[@Rajdweep]

@@InterviewWithBunny no bro some Tekion company, 1yr exp asking lld system design round

[@avinashkumarmehta]

Other Actors representation is not present in the Design

[@dragonzhao433]

this is more like for OOD rather than system design

[@InterviewWithBunny]

this is LLD.

[@tejupotnuru66]

Could you please share the lld document

[@InterviewWithBunny]

what you need? the screenshots of this?

[@pankajsuryavanshi8332]

Make video on Social app , Ecommerce app LLD

[@InterviewWithBunny]

sure... plenty more coming very soon..!!

[@prayaglehana7187]

👍

[@InterviewWithBunny]

thanks

[@unboxrandom]

this is more OOD than system design

[@InterviewWithBunny]

exactly...i mentioned it is low level object oriented design.