fpc/packages/fcl-web/examples/websocket

Websocket examples

This directory contains the examples for the websockets functionality of FCL-Web

server

Small standalone chat server. It accepts JSON messages and uses from/to/msg fields in the json objects to dispatch messages. If no to: is present, a message is distributed to all connected clients.

client

A small command-line chat client to connect to the server. It will ask for a name, and then starts a loop in which you can enter one-line messages that will be sent to the server.

Upgrade

A demonstration of the HTTP server "upgrade" mechanism; This chat server not only acts as the server example, but also serves files on the same port.

A sample client can also be found in the pas2js sources, which is a sample client program that works in the browser. (see the demo/websocket folder)

Running the examples

All programs print help when invoked with the -h command-line parameter.

To test the examples, run the server in a terminal window:

wsserver -p 8080

(will start listening on port 8080)

In another terminal, run

wsclient -u ws://localhost:8080/

You can run this program multiple times in different terminal windows.