1 ) What is opcache ?

2) What is PHP FPM ?

3) How PHP works Internally ?

4) What is life cycle of HTTP request ?

5) What is Singleton Design pattern ?

6 ) How Indexing Works in mysql in Detail ?

7 ) What is BTREE in…


Go to AWS Cognito Service

  1. Open your user pool. Click Attribute menu on left sidebar.
  2. Add a custom attribute (bio, in this example). type is string.
  3. Set up a plain create-react-app project with aws-amplify and @aws-amplify/ui-react
  4. Configure Amplify as per below configuration somewhere in your app.
let user = await…


let says u have an Event container, they have EventList and EventDetail. The expected behavior would be when the user click on an specific Event on the list, it shows the detail of a Event.

Problem :

There’s a problem here, it requires 2 calls, one call to get the EventList and another call to get the EventDetail. But the API of EventList contain everything that’s need for EventDetail.

How to avoid call to EventDetail API ? and what if user directly comes to Event Detail Page…


AWS Cognito with React.

AWS Amplify Authentication module provides Authentication APIs and building blocks for developers who want to create user authentication experiences.

The AWS Amplify framework comes with a CLI to deploy your cloud backend to AWS. …


Building web applications can be a very daunting process. You have to think about if it will be a traditional server-side rendered app(SSR) or a single page application(SPA) before proceeding to pick from the many frameworks and libraries.

While both server-side and client-side rendering have their pros and cons, Inertia


Common Interview Question Ask For Software Developer

  1. What is polymorphism ? The word polymorphism means having many forms. … Real life example of polymorphism: A person at the same time can have different characteristic. Like a man at the same time is a father, a husband, an employee. So the…

Today, we’re going to implement serverless RESTful API services by using “Serverless Framework”. There are many cloud services provider offers serverless functionality like AWS Lambda, Azure Functions, and Google CloudFunctions but in this article, I’m sticking with AWS Lambda as a cloud service provider.

If you don’t know about the…

Rehmat Sayany

Full Stack developer passionate about NodeJS, PHP, React JS and AWS.

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