Stateless app

A stateless app is an application that does not maintain any state information about its users. This means that when a user makes a request to the app, the app does not need to look up any information about the user in order to process the request. All of the information that the app needs to process the request is contained within the request itself.

Stateless apps are often used in situations where it is not practical or possible to maintain state information, such as when the app is distributed across multiple servers or when the app is designed to be scalable.

What is the difference between stateful apps and stateless app? Stateful apps maintain a state or "memory" of some kind, while stateless apps do not. This means that stateful apps can remember things like user preferences, while stateless apps cannot. Stateful apps are typically more complex to develop and deploy than stateless apps, but they can offer a more personalized experience to users.

What are stateful apps?

Stateful apps are apps that maintain state across multiple user sessions. This means that the app remembers information about the user's previous interactions with the app, and uses this information to provide a personalized experience for the user.

Stateful apps are typically more complex than stateless apps, as they need to manage and store state information. However, this extra complexity can be offset by the fact that stateful apps can provide a more personalized and engaging experience for users.

Is Facebook stateful or stateless?

Facebook is a stateful application. When a user logs into Facebook, they are assigned a unique session ID. This session ID is used to track the user's activity on the site. Facebook uses this information to display the user's news feed, notifications, and messages.

Facebook also uses cookies to store information about the user's session. These cookies are used to keep the user logged in and to track their activity.

Facebook is stateful because it uses session IDs and cookies to keep track of the user's activity. This information is used to provide the user with a personalized experience on the site.

Why is REST API called stateless?

REST API is called stateless because it does not store any state information on the server. This means that every request from a client must contain all the information necessary to service that request, and the server does not maintain any information about past requests. This makes REST API well suited for cloud-based applications, where resources are typically distributed and state information must be easily replicated.

What is stateless vs stateful?

In computing, a stateless protocol is a communication protocol in which the server does not keep track of any state information about the client. This is in contrast to a stateful protocol, in which the server retains information about the client's previous requests.

Stateless protocols are typically simpler and more scalable than stateful protocols, because the server does not need to maintain any per-client state information. However, stateless protocols can be more difficult to implement, because the server cannot rely on any state information to handle requests.