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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 uses your phone’s cellular or Wi-Fi connection to facilitate messaging and voice calling to nearly anyone on the planet, alone or in a group, and is especially nice for families and small collaborative workgroups. The app lets you make calls, send and receive messages, and share documents, photos, and videos.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 is the system of WhatsApp?
WhatsApp uses your phone’s cellular or Wi-Fi connection to facilitate messaging and voice calling to nearly anyone on the planet, alone or in a group, and is especially nice for families and small collaborative workgroups. The app lets you make calls, send and receive messages, and share documents, photos, and videos.
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 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 database works?
How Does Whatsapp Database Work? All messages sent by WhatsApp are stored in a database file in crypt form, meaning no one can read them. All the data in WhatsApp’s database is encrypted using crypt2, crypt5, crypt7, crypt8, so no one can read the messages.
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.
Is WhatsApp closing down in 2021?
WhatsApp has shared a list of devices that will no longer support the WhatsApp messaging app starting November 1, 2021. In general, these will be Android phones that are running on Android 4.0. 3 or lower, and Apple iPhones that are running on iOS 9 or older.
How WhatsApp status 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.
See some more details on the topic whatsapp architecture explained here:
WhatsApp architecture – SlideShare
The actor principle in WhatsApp • User tom wants to send a message to User Brad. SqLite SqLite Mnesia Backend DB if online offline Stores the message in the …
WhatsApp System Design | Slack/FB Messenger … – CodeKarle
Should support one-on-one chats · Should support group chats · Should have image, video and file-sharing capabilities · Should indicate read/receipt of messages …
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 …
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.
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.
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.
Whatsapp System design or software architecture
Images related to the topicWhatsapp System design or software architecture
How many lines of code is an app?
Meanwhile, mobile operating systems like Android have been engineered as ultra lightweight, built from just over 10 million lines of code.
How is WhatsApp scaled to 1 billion?
- 42 billion messages sent daily.
- 1.6 billion pictures sent daily.
- 250 million videos sent daily.
What type of database does WhatsApp use?
WhatsApp stores all of its information on a SQLite database, as many other apps do: the location and structure of the database differ from platform to platform, for example. A Python code line can be decrypted and a database can be obtained with a few lines.
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.
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.
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.
What phones will lose WhatsApp?
The Android phones list released by WhatsApp includes smartphones from Samsung, LG, ZTE, Huawei, Sony, Alcatel, and others. For Samsung, the Samsung Galaxy Trend Lite, Galaxy Trend II, Galaxy SII, Galaxy S3 mini, Galaxy Xcover 2, Galaxy Core, and Galaxy Ace 2 will lost support by November.
What is the future of WhatsApp?
WhatsApp users are soon going to be able to react to messages with images, just like Instagram and Facebook. The preview of the feature was allegedly spotted by WABetaInfo. Dubbed as meesage reaction, the feature will allow users to react to a message using a total of six emojis.
WhatsApp handles 3 MILLION TCP Connections Per Server! How do they do it? Let us discuss
Images related to the topicWhatsApp handles 3 MILLION TCP Connections Per Server! How do they do it? Let us discuss
What phones will stop using WhatsApp?
In 2022, the app will supposedly cease to function on over 50 iPhones and Android handsets. The iPhone 6S, iPhone SE, Samsung Galaxy phones, Sony Xperia M, HTC Desire 500, LG Optimus F7, and many others are among the devices on the list. WhatsApp will soon stop working on phones running Android 4.1 and older.
What is the psychology behind WhatsApp status?
Lack of Ability to Change Things: When a person on a sub-conscious level foresees the reality that he/she cannot change things at their homes, offices, states and country, they share their feelings (which in real world – they can’t) over their whatsapp status.
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