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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.WhatsApp is a free app for iPhones, Android smartphones, Macs and Windows PCs. It allows you to send messages, pictures, videos and even voice recordings, and to make voice and video calls over the internet for free, rather than paying to do the same using your mobile network.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.
What system does WhatsApp use?
WhatsApp is a free app for iPhones, Android smartphones, Macs and Windows PCs. It allows you to send messages, pictures, videos and even voice recordings, and to make voice and video calls over the internet for free, rather than paying to do the same using your mobile network.
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.
Whatsapp System Design: Chat Messaging Systems for Interviews
Images related to the topicWhatsapp System Design: Chat Messaging Systems for Interviews
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.
How WhatsApp was coded?
WhatsApp is based on Erlang, a programming language designed for scalable systems with real-time high availability requirements. From the beginning of WhatsApp, Erlang seemed like the perfect fit. Erlang is simple but highly functional and supports automatic memory allocation for improved performance.
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.
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.
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.
See some more details on the topic whatsapp system architecture here:
WhatsApp System Design | Slack/FB Messenger … – CodeKarle
In this article, we will look at a high-level system architecture for chat applications like WhatsApp and Facebook messenger.
How would you design WhatsApp ? – LeetCode Discuss
Client Server architecture is preferrable than peer-to-peer for a messaging system. For a simpler understanding consider two users: Mike and Rachel. When Mike …
WhatsApp system architecture – 文章整合
With such an astronomical amount of traffic , People can’t help but wonder WhatsApp How it works ？ Its system design 、 Server architecture 、 …
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 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.
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.
Whatsapp System design or software architecture
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Is WhatsApp a client or P2P 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.
Which database is used by WhatsApp?
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.
How use WhatsApp with Python?
- Step 1: Install pywhatkit. To install the last version of pywhatkit, open up a terminal and run the following command. …
- Step 2: Send a message to a contact on WhatsApp. …
- Step 3: Send a message to a group on WhatsApp. …
- 10 Python Automation Scripts for Everyday Problems. …
- 5 Books To Help You Write Better Code.
In which language WhatsApp backend is written?
ERLANG is the programming language used to code WhatsApp. Code restructuring and some important changes were made to the Ejabberd server to achieve optimal server performance.
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.
Why is WhatsApp successful?
Global appeal. One of the biggest reasons why WhatsApp is so popular is because of its international pool of users. Once it began trending in certain regions, it really took off. WhatsApp hit 2 billion monthly active users in February 2020, continuously growing as the world’s most popular messenger app.
Is WhatsApp app encrypted?
WhatsApp’s end-to-end encryption is used when you message another person using WhatsApp Messenger. End-to-end encryption ensures only you and the person you’re communicating with can read or listen to what is sent, and nobody in between, not even WhatsApp.
What are the disadvantages of WhatsApp?
Drawbacks or disadvantages of Whatsapp
➨There is a risk of anyone reading the message meant for you only. This often creates problem in the happy home. ➨There was limit of 256 persons in a group which can be changed now to 3000 with few settings. ➨Someone can get annoyed due to reception of constant messages.
WhatsApp System Design | FB Messenger System Design | System Design Interview Question
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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.
How does WhatsApp work medium?
How the media sharing works? For sharing, we don’t use the connection which is used for sending text messages because it is a very lightweight connection and it cannot handle this much load. Instead, WhatsApp uses a different server(like HTTP) to share media.
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