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What is the system design of WhatsApp?
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 medium does WhatsApp use?
WhatsApp is free to download messenger app for smartphones. WhatsApp uses the internet to send messages, images, audio or video. The service is very similar to text messaging services, however, because WhatsApp uses the internet to send messages, the cost of using WhatsApp is significantly less than texting.
Whatsapp System Design: Chat Messaging Systems for Interviews
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How WhatsApp works technically?
How Whatsapp Messaging App is Working Technically? WhatsApp uses Ejabberd (XMPP) server which facilitates instant message transfer between two or many users on a real-time basis. High reliability and sustainability even under peak traffic the reason why WhatsApp developers chose Ejabberd above anything else.
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.
What technology does WhatsApp use?
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.
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.
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.
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WhatsApp System Architecture – Medium
Let’s design an instant messaging service like WhatsApp. … There are two types of the chat systems, one is Facebook Messenger which stores all messages …
Whatsapp System Design and Chat Messaging Architecture …
In this tutorial, we are discussing the Whatsapp Application Design. Whatsapp is a chat-based application. Once you know the design of Whatsapp application …
WhatsApp System Design – Medium
WhatsApp System Design. WhatsApp is a fast, simple, and convenient way for family and friends to chat, create group texts, share photos and …
WhatsApp System Design – Medium
WhatsApp System Design. Understanding the scale and features: User Base: 2 + Billions; Chats; Last seen; Media; Encrypt; Call.
What makes WhatsApp unique?
In addition to text messages and smileys, WhatsApp allows users to exchange photos, short voice messages, videos, gifs, and other media files. Sending spreadsheets, PDFs, slideshows and other documents (up to 100 MB) is also possible.
How does WhatsApp make money?
WhatsApp started as a ‘freemium’ service, where users were able to send messages for free for the first year and then renew at an annual $0.99 fee. They have shifted from this business model and stayed away from in-app advertising. Instead, they make money through WhatsApp for Business and WhatsApp Pay.
Which database is used for WhatsApp?
crypt12 file is a database file used by WhatsApp Messenger. It stores encrypted messages of chat history. It is used by WhatsApp to secure a user’s message on the Android device. WhatsApp uses a different algorithm to encrypt the database file.
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.
WhatsApp System Design | FB Messenger System Design | System Design Interview Question
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Does WhatsApp use socket programming?
There are many server and client implementations of the protocol including Ejabbered, Openfire, Astrachat etc. So in one sense yes WhatsApp uses TCP sockets, but not directly. After all, for any reliable and self-correcting communication, TCP is the virtually only transport protocol.
How is WhatsApp scaled to 1 billion?
- 42 billion messages sent daily.
- 1.6 billion pictures sent daily.
- 250 million videos sent daily.
How many servers does WhatsApp have?
The 700+ servers used by WhatsApp are currently spread between data centers in California and Washington D.C., costing Facebook up to $2 million a month.
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.
Is WhatsApp a software or hardware?
For example, Microsoft Word or Excel are application software, as are common web browsers such as Firefox or Google Chrome. It also includes the category of mobile apps, including communication apps such as WhatsApp or games such as Candy Crush Saga.
Does WhatsApp use SQLite?
The Whatsapp and most chat clients use SQLite (a tiny embedded database software) to store the data, so the chat client does not use any data structure on its own, and just calls the order-by-request query on the database, which gives them the list of chats.
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.
How can I create WhatsApp app?
- Determine the project’s MVP features list. …
- Pick an outsourcing company. …
- Launch the discovery phase. …
- Initiate the development phase. …
- Registration and address book information. …
- Message exchange. …
- Notifications. …
- Multimedia file transmission.
What language is WhatsApp written in?
Whatsapp System design or software architecture
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How automate WhatsApp in Python?
- Step 1: Install pywhatkit. …
- Step 2: Send a message to a contact on WhatsApp. …
- Step 3: Send a message to a group on WhatsApp. …
- 3 Ways to Use Enigma’s Small Business Data. …
- 10 Python Automation Scripts for Everyday Problems.
Is WhatsApp built on react native?
WhatsApp Clone Using React Native
This is an open source clone of whatsapp using the react-native library maintained by facebook, the goal of this project is to build an application exactly like the original application, however using a different technical approach.
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