WsockClient.js

Downloads12
Subscribe
0
Bookmark
2
This application is not supported by InterSystems Corporation. Please be notified that you use it at your own responsibility.
Details
Releases
Reviews
Issues

What's new in this version

nxt

It will demonstrate the wide range that is openend by making use
of the power embedded in Node.js and its adapter to Caché, Ensemble, Health,..*
Node / JavaScript have wide reputation to work as a WebSocket client.
By using the Caché adapter it becomes easy to control it and to consume the results as a
Client for WebSocket Servers and to collect the replies in Caché, Ensemble, ..

I used node-v6.16.0-x64.msi and cache610.node as cache.node

You provide a Global for input:

 ^WsockIn="wss://ws.postman-echo.com/raw"
 ^WsockIn(0)=6
 ^WsockIn(1)="Hello"
 ^WsockIn(2)="World !"
 ^WsockIn(3)="Robert"
 ^WsockIn(4)="is waiting"
 ^WsockIn(5)="for replies"
 ^WsockIn(6)="exit"

and with this echo server you get back a Global as output

 ^WsockOut(0)=6
 ^WsockOut(1)="Hello"
 ^WsockOut(2)="World !"
 ^WsockOut(3)="Robert"
 ^WsockOut(4)="is waiting"
 ^WsockOut(5)="for replies"
 ^WsockOut(6)="exit"

you may call it from with class code or routine or command line

  kill ^WsockOut
  do $zf(-1,"node ""C:\Program Files\nodejs\user\WsockDemo""")
  zwrite ^WsockOut

or in verbose mode

  SAMPLES>$node "C:\Program Files\nodejs\user\WsockDemo"

start
server: wss://ws.postman-echo.com/raw
Lines to process: 6

WebSocket Client Connected
client ready

Line: 1 text: Hello
Line: 2 text: World !
Line: 3 text: Robert
Line: 4 text: is waiting
Line: 5 text: for replies
Line: 6 text: exit
lines sent: 6

Received: 'Hello'
Received: 'World !'
Received: 'Robert'
Received: 'is waiting'
Received: 'for replies'
Received: 'exit'
replies received: 6

Client Closed
SAMPLES>

Using the WebSocket Server in namespace USER

ws://localhost:57772/csp/user/Web.SocketTest.cls

the replies look like this:

Received: 'Welcome to Cache WebSocket. NameSpace: SAMPLES'
Received: ''Hello' (length=5) recieved on 08 Feb 2019 at 02:57:08PM NameSpace=USER'
Received: ''World !' (length=7) recieved on 08 Feb 2019 at 02:57:08PM NameSpace=USER'
Received: ''Robert' (length=6) recieved on 08 Feb 2019 at 02:57:08PM NameSpace=USER'
Received: ''is waiting' (length=10) recieved on 08 Feb 2019 at 02:57:08PM NameSpace=USER'
Received: ''for replies' (length=11) recieved on 08 Feb 2019 at 02:57:08PM NameSpace=USER'
replies received:  6

Client Closed

.
. .
I have to admit this was my first piece of code to run in Node.js.

Article in DC

Rating
0 (0)
Category
Technology Example
Works with
CachéEnsemble
Tags
Info
Version
1.0.2
Last updated
2022-04-20
Repository
Open
Documentation
Open
License
Link