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What is WhatsApp system design?
WhatsApp uses a highly modified version of XMPP on an Ejabberd server (more on that later) to communicate with the clients. The XMPP on the client opens an SSL socket to the WhatsApp servers. All the sent messages are queued on the servers until the client opens or reconnects to this socket to retrieve the messages.
What data structure is used by WhatsApp?
What data structure is used by WhatsApp? The data structure used in queue. A queue essentially works on the principle of “First In First Out”. A queue is maintained for each user which contains the message to be delivered to the user.
Whatsapp System Design: Chat Messaging Systems for Interviews
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How does WhatsApp system work?
WhatsApp uses Extensible Messaging and Presence Protocol (XMPP) to exchange data between the users. The protocol is decentralized, secure, and flexible. It can be used to transfer messages both in one-on-one context and in group chats. The company uses XMPP server called ejabberd with a FreeBSD operating system.
Which programming language is used to build WhatsApp?
For WhatsApp, acquired earlier this week by Facebook, the answer is Erlang, a programming language developed in the ’80s that is finally having its moment in the spotlight.
How WhatsApp works technically PDF?
Incase of multimedia messages, contents (audio, video, pdf, locations, contacts or image) are uploaded into a HTTP server and are linked with the content and then sent to the receiver in the form of a thumbnail. Based on the user’s needs the content can either be downloaded or discarded. XMPP is being used by Whatsapp.
Does WhatsApp use Microservices?
As I mentioned above there are microservices to handle the WhatsApp process and this process is handle by one microservice we can name it as Last Seen Service. So Last Seen service stores online details of each user in the Cloud Database table saying that This user’s last online time is this time.
Is WhatsApp written in Java?
Coded using the ERLANG programming language, Whatsapp is the most used with almost 2 billion monthly users. Whatsapp uses the open-sourced Extensible Messaging and Presence Protocol (XMPP) to facilitate instant messages between two parties. Initially, Whatsapp started by using the Ejabbered server.
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Does WhatsApp connect to a database?
The WhatsApp Business API client can use MySQL or PostgreSQL to store data. You can configure the database settings by setting the following environment variables in the db. env file when installing the WhatsApp Business API client.
Does WhatsApp store messages in database?
In WhatsApp, all the data will be stored in your device. Any message and image will get stored in your phone. Both chat history and images will be stored in a database on the device and images will be visible through the gallery within a folder named WhatsApp.
WhatsApp System Design | FB Messenger System Design | System Design Interview Question
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Is WhatsApp a TCP or UDP?
RE: whatsapp application
Whatsapp uses TCP 443 (HTTPS) to pass the majority of the connection traffic but it also uses TCP 80 (HTTP). If voice is used, then ports 4244, 5222, 5223, 5228,50318, 59234 & 5242 are used.
How create an app like WhatsApp?
- Analyze Market Need. Source: Google. …
- Select the App Module Which Suits Your Business. …
- Choose Trending and Must-Have WhatsApp Features. …
- Select App Design. …
- Hire Android App Developers to Develop an App Like WhatsApp.
What platform does WhatsApp run on?
According to the information on WhatsApp FAQ section, WhatsApp will only be compatible with phones running Android 4.0. 3 operating system or newer as well as iPhones running on iOS 9 and newer.
What language is WhatsApp?
- Open WhatsApp.
- Tap More options > Settings > Chats > App Language.
- Select the language you want.
Does WhatsApp use load balancer?
In a WhatsApp scenario, we are all connected to multiple messaging servers which are horizontally scaled. Multiple servers which are horizontally scaled are not enough to handle the load of WhatsApp users, so a load balancer was added.
Is WhatsApp client a server?
WhatsApp or most of the other messaging apps rarely work on a peer-to-peer basis. So it wouldn’t open a connection (from your device) to each of your friends’ devices. Instead, your device connects to their server. It could then use a custom TCP protocol or maybe HTTP to communicate your messages to the server.
Why WhatsApp uses Erlang?
In using Erlang, WhatsApp is part of a larger push towards programming languages that are designed for concurrency, where many processes run at the same time. As internet services reach more people—and juggle more tasks from all those people—such languages become more attractive.
Whatsapp System design or software architecture
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In what language Facebook is written?
| Websites | Popularity (unique visitors per month) | Back-end (Server-side) |
|---|---|---|
| 1,120,000,000 | Hack, PHP (HHVM), Python, C++, Java, Erlang, D, XHP, Haskell | |
| YouTube | 1,100,000,000 | C, C++, Python, Java, Go |
| Yahoo | 750,000,000 | PHP |
| Etsy | 516,000,000 | PHP |
Which programming language is used in PUBG?
C++ is the core language for games such as Pubg. C++ is a high-performance programming language that is directly compiled into machine-readable instructions, implying that it is close to the hardware/chip level.
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