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WebSocket is a computer communications protocol, providing a simultaneous two-way communication channel over a single Transmission Control Protocol (TCP) connection. The WebSocket protocol was standardized by the IETF as RFC 6455 in 2011. The current specification allowing web applications to use this protocol is known as WebSockets. [1]
The WebSocket protocol is implemented in different web browsers, web servers, and run-time environments and libraries acting as clients or servers. The following is a table of different features of notable WebSocket implementations. Client (library) Server (library) Version compared. Protocol (spec) version support. Protocol test report. License.
Socket.IO is an event-driven library for real-time web applications. It enables real-time, bi-directional communication between web clients and servers. [3] It consists of two components: a client, and a server. Both components have a nearly identical API. Socket.IO is also a protocol, [4] where different complying implementations of the ...
The Asynchronous Server Gateway Interface (ASGI) is a calling convention for web servers to forward requests to asynchronous -capable Python frameworks, and applications. It is built as a successor to the Web Server Gateway Interface (WSGI). Where WSGI provided a standard for synchronous Python application, ASGI provides one for both ...
The Upgrade header field is an HTTP header field introduced in HTTP/1.1. In the exchange, the client begins by making a cleartext request, which is later upgraded to a newer HTTP protocol version or switched to a different protocol. A connection upgrade must be requested by the client; if the server wants to enforce an upgrade it may send a 426 ...
Web Application Messaging Protocol. WAMP is a WebSocket subprotocol registered at IANA, [1] specified [2] to offer routed RPC and PubSub. Its design goal [3] is to provide an open standard for soft, real-time message exchange between application components and ease the creation of loosely coupled architectures based on microservices.
Same-origin policy. In computing, the same-origin policy (SOP) is a concept in the web-app application security model. Under the policy, a web browser permits scripts contained in a first web page to access data in a second web page, but only if both web pages have the same origin. An origin is defined as a combination of URI scheme, host name ...
Network socket. A network socket is a software structure within a network node of a computer network that serves as an endpoint for sending and receiving data across the network. The structure and properties of a socket are defined by an application programming interface (API) for the networking architecture. Sockets are created only during the ...