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The client sends an HTTP request (method GET, version ≥ 1.1) and the server returns an HTTP response with status code 101 (Switching Protocols) on success.This means a WebSocket server can use the same port as HTTP (80) and HTTPS (443) because the handshake is compatible with HTTP.
Meteor uses JavaScript as its primary programming language, enabling developers to use a single language for both client-side and server-side code. [ citation needed ] This approach can streamline the development process for mobile applications by reducing the need for additional programming languages.
Kaazing WebSocket Gateway [4] Yes Yes 5.0 Dec 2014 RFC 6455 APL2 (Community Edition), commercial (Enterprise Edition) Java, JMS: JavaScript, Flash/Flex, Silverlight, Objective-C & iOS, Java, Java & Android, .NET, Xamarin: Yes Yes Yes Yes No Yes Yes Yes Yes No memory-limited, configurable Lightstreamer [5] Yes Yes 7.4.5 4 Oct 2024: RFC 6455 ...
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 .
Modern browsers will permit a script to connect to a WebSocket address without applying the same-origin policy. However, they recognize when a WebSocket URI is used, and insert an Origin: header into the request that indicates the origin of the script requesting the connection. To ensure cross-site security, the WebSocket server must compare ...
The server, if it supports the protocol, replies with the same Upgrade: WebSocket and Connection: Upgrade headers and completes the handshake. [3] Once the handshake is completed successfully, data transfer begins.
The XMLHttpRequest (XHR) object, a tool used by Ajax applications for browser–server communication, can also be pressed into service for server–browser Comet messaging by generating a custom data format for an XHR response, and parsing out each event using browser-side JavaScript; relying only on the browser firing the onreadystatechange ...
Line 2 receives an incoming event, for example, HTTP request or WebSocket message. The await keyword is used because the operation is asynchronous. Line 4 asynchronously sends a response back to the client. In this case, it is a WebSocket communication.