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What database is WhatsApp using?
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.
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.
Database Design for Chat Application
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What is the backend of WhatsApp?
Robust backend
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.
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.
Which technology is used in WhatsApp?
Technical. WhatsApp uses a customized version of the open standard Extensible Messaging and Presence Protocol (XMPP). Upon installation, it creates a user account using one’s phone number as the username (Jabber ID: [phone number]@s.whatsapp.net ).
What is the tech stack of WhatsApp?
The Technical Stack used to develop Whatsapp includes Erlang, FreeBSD, Yaws, PHP, and XMPP. Erlang— A general purpose, a concurrent, functional programming language used to script the real-time chat app system. It has built-in support for concurrency, distribution and fault tolerance.
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 database design here:
Database Model for a Messaging System – Vertabelo
This article will explain the system requirements and step by step approach to design a data model for a messaging system.
Whatsapp System Design and Chat Messaging Architecture …
In this tutorial, we are discussing the Whatsapp Application Design. … So this updated in the database(Message, To, From, TimeStamp, and other details) …
How is the Whatsapp database structured? – Quora
As numerous apps do, WhatsApp stores all its information on a SQLite database: the location and the structure of the database are different from platform to …
Design Whatsapp – System Design Prep
Tutorial on how to design whatsapp from basics. Facebook’s messenger system design, interview tips and discussion.
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.
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.
Whatsapp System Design: Chat Messaging Systems for Interviews
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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 make 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.
Where is WhatsApp hosted?
It shows that WhatsApp runs atop more than 700 high-end servers split between data centers in San Jose, California, and Washington, D.C. At one point Facebook was spending nearly $2 million per month on the IBM cloud, a second source said.
How do WhatsApp servers work?
WhatsApp uses client-server which enables a user to communicate. Here, basically, the user who wants to send a message sends the text or media file to the server. Then the server queues the message on the receiving number. The receiver will get a notification when they have an internet connection.
How WhatsApp works medium?
When we share a media, it gets uploaded to an HTTP Server over a different connection, after successful upload, the HTTP server returns a hash or unique ID associated to that media and that hash value is sent to the WhatsApp server.
Does WhatsApp use XML?
Does WhatsApp use XML? Ans: Yes WhatsApp uses XML layout. It contains 2 XML Layouts respectively for the incoming and outgoing audio messages.
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.
Which protocol does Facebook use?
Facebook’s Messenger, including the voice (VoIP – Voice over Internet Protocol) functionality, utilizes an open protocol called WebRTC (Web Real Time Communications).
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.
2. Query first efficient database design for a private chat application | Real time private chat app
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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 is WhatsApp scaled to 1 billion?
- 42 billion messages sent daily.
- 1.6 billion pictures sent daily.
- 250 million videos sent daily.
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