Design a taxi-aggregator like Ola

on October 04, 2016

This entry will discuss a high level design for Ola App. Following are the feature our application is going to support.

List of Features:
1. The cab will be visible to user only if the distance between cab and user is <2Kms.
2. Maximum 10 Cabs will be visible to the user.
3. Number of cab our system will integrate : 1 Millions.
4. User per second : 10 Millions/ Second.
5. Low latency and high availability is our primary goal.

Design Strategy:

To scale the application and handle all the load one strategy would be to user Microservice based design approach. Microservices is an approach to application development where a large application is built as a suite of granular services. Each service supports a specific business goal and uses a simple, well-defined interface to communicate with other services. High level design is as follow

Using this approach, our design inherently will have all the benefits of Microservice. For detail regarding Microservice, do visit our entry on Microservice.

Algorithm

"The cab will be visible to user only if the distance between cab and user is <2Kms."

Pseudo code:

Comments

Unknown31 May 2018 at 04:03
Hey Brother,

Brilliant article, glad I slogged through the #topic it seems that a whole lot of the details really come back to from my past project.

I'm using CloudFormation and really enjoy it, but there are a couple of things which are lacking here.

Maybe there are some reasons why they weren't implemented here, but.

So, the first thing is variables which can be populated during stack creation.
Here is an example of similar service from another cloud provider:

Thanks a lot. This was a perfect step-by-step guide. Don’t think it could have been done better.

Shukran,

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Unknown4 June 2018 at 22:52
Hello There,

I am shocked, shocked, that there is such article exist!! But I really think you did a great job highlighting some of the key Design a taxi-aggregator like Ola ... in the entire space.

I am a freelancer and I previously created an account using a gmail address and obtained my certification with this account. During the registration process of the APN program it needs a non gmail address so i used my professional address, how can i merge or link the certifications of my first account with the APN program?

I started using this AWS Tutorial blog for my training practice.

Super likes !!! for this amazing post. I thinks everyone should bookmark this.

Thanks a heaps,
Morgan
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Unknown6 June 2018 at 22:42
Hello Buddy,

Great piece on Solid Core Most Common Amazon Web Services (AWS) Interview Questions and Answers, I’m a fan of the ‘flowery’ style Looking forward to more long form articles ??

Is there any way we can contact anyone from AWS support since this has become an urgent issue for us, and may potentially be a security concern based on our investigation. We'll be glad to get on the phone to sort this out further.

I started using this AWS Tutorial blog for my training practice.

Anyways great write up, your efforts are much appreciated.

Kind Regards,
Morgan
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Unknown8 June 2018 at 02:33
Salemetsiz Be,

11/10!! Your blog is such a complete read. I like your approach with Design a taxi-aggregator like Ola. Clearly, you wrote it to make learning a cake walk for me. AWS Tutorial

I like the support for S3 in the AWS console, especially being able to apply ACLs at time of upload. However, it would be very good if the view was sortable by last modified date, as I am typically working with the last 10-15 files uploaded. AWS Training

It was cool to see your article pop up in my google search for the process yesterday. Great Guide.
Keep up the good work!

Cheers,
Radhey
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