Chilkat Examples

ChilkatHOMEAndroid™Classic ASPCC++C#Mono C#.NET Core C#C# UWP/WinRTDataFlexDelphi ActiveXDelphi DLLVisual FoxProJavaLianjaMFCObjective-CPerlPHP ActiveXPHP ExtensionPowerBuilderPowerShellPureBasicCkPythonChilkat2-PythonRubySQL ServerSwift 2Swift 3/4TclUnicode CUnicode C++Visual Basic 6.0VB.NETVB.NET UWP/WinRTVBScriptXojo PluginNode.jsExcelGo

PowerShell Examples

ASN.1
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Service Bus
Base64
Bounced Email
Box
CSR
CSV
Certificates
Compression
DKIM / DomainKey
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
ECC
Email Object
Encryption
FTP
Facebook
FileAccess
Firebase
GMail REST API
GeoOp
Google APIs
Google Calendar
Google Cloud Storage
Google Drive
Google Sheets
Gzip
HTML-to-XML/Text
HTTP
HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)

Java KeyStore (JKS)
Jira
MHT / HTML Email
MIME
Microsoft Graph
NTLM
OAuth1
OAuth2
OneDrive
OpenSSL
Outlook
PEM
PFX/P12
POP3
PRNG
PayPal
Peoplevox
QuickBooks
REST
REST Misc
RSA Encryption
SCP
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
SharePoint
Shopify
Socket/SSL/TLS
Spider
Stream
Stripe
SugarCRM
Tar Archive
Twitter
Upload
VoiceBase
Walmart
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Xero
Zip
curl
eBay

 

 

 

(PowerShell) Subscribe to Multiple Bitfinex Tickers on One Connection

Subscribes to multiple ticker symbols on the public Bitfinex websocket ticker channel and receives ticker updates.

Chilkat .NET Downloads

Chilkat .NET Assemblies

Chilkat for Mono

Chilkat for Xamarin

[Reflection.Assembly]::LoadFile("C:\myAssemblies\ChilkatDotNet47.dll")

#  This example requires the Chilkat API to have been previously unlocked.
#  See Global Unlock Sample for sample code.

$ws = New-Object Chilkat.WebSocket

#  For brevity, this example does not check for errors when etablishing the WebSocket connection.
#  See Establish WebSocket Connection for more complete sample code for making the connection.

$rest = New-Object Chilkat.Rest

#  Connect to api.bitfinex.com
$success = $rest.Connect("api.bitfinex.com",443,$true,$false)
$ws.UseConnection($rest)
$ws.AddClientHeaders()

$responseBody = $rest.FullRequestNoBody("GET","/ws")
$success = $ws.ValidateServerHandshake()
if ($success -ne $true) {
    $($ws.LastErrorText)
    $($responseBody)
    $($rest.ResponseHeader)
    exit
}

#  After connecting, the bitfinex websocket server will send
#  an info message that contains the actual version of the websocket stream.
#  Receive that message..
$success = $ws.ReadFrame()
if ($success -ne $true) {
    $("Failed to receive a frame")
    $("ReadFrame fail reason = " + $ws.ReadFrameFailReason)
    $($ws.LastErrorText)
    exit
}

#  We should get this:
#  {"event":"info","version":1.1,"platform":{"status":1}}
$($ws.GetFrameData())

#  Subscribe to the BTCUSD ticker feed.
#  See https://docs.bitfinex.com/docs for more information.
$json1 = New-Object Chilkat.JsonObject
$json1.AppendString("event","subscribe")
$json1.AppendString("channel","ticker")
$json1.AppendString("pair","BTCUSD")

$finalFrame = $true
$success = $ws.SendFrame($json1.Emit(),$finalFrame)

#  Subscribe to the ETHUSD ticker feed.
$json2 = New-Object Chilkat.JsonObject
$json2.AppendString("event","subscribe")
$json2.AppendString("channel","ticker")
$json2.AppendString("pair","ETHUSD")

$success = $ws.SendFrame($json2.Emit(),$finalFrame)

#  Begin reading the ticker feed.
# / This will include a single confirmation response for each subscription.

#  We'll just read the 1st 5 updates and then exit..
$receivedFinalFrame = $false
$numUpdatesReceived = 0
while ($numUpdatesReceived -lt 7) {

    $success = $ws.ReadFrame()
    if ($success -ne $true) {
        $("Failed to receive a frame")
        $("ReadFrame fail reason = " + $ws.ReadFrameFailReason)
        $($ws.LastErrorText)
        exit
    }

    #  The responses we desire are in Text frames, where the opcode = 1.
    if ($ws.FrameOpcodeInt -eq 1) {
        $receivedText = $ws.GetFrameData()
        $($receivedText)
        #  Should receive a line of text such as this:
        #  [2751,7349,36.34269559,7349.1,41.01777063,-116.2,-0.0156,7349.1,22188.26055319,7560,7270.5]
        #  Initially, a single confirmation response for each subscription would be received, such as this:
        #  {"event":"subscribed","channel":"ticker","chanId":810,"pair":"BTCUSD"}
        $numUpdatesReceived = $numUpdatesReceived + 1
    }

}

#  This is sample output:
#  You can see that the 1st message received is the subscription confirmation for the BTCUSD subscribe request.
#  The next message is a BTCUSD ticker update.
#  The next message is the confirmation for the ETHUSD subscription.
#  The next message is an ETHUSD update.
#  The BTCUSD channel ID is "537", and the ETHUSD channel ID is "700".  The channel IDs are provided in the
#  subscription confirmation messages.  Each ticker update begins with the channel ID..

#  {"event":"subscribed","channel":"ticker","chanId":537,"pair":"BTCUSD"}
#  [537,6457.9,79.59102302,6458,22.49395741,-24.1,-0.0037,6457.9,13644.52820029,6540,6370.76958739]
#  {"event":"subscribed","channel":"ticker","chanId":700,"pair":"ETHUSD"}
#  [700,496.9,247.24493326,496.92,284.09636979,-2.47,-0.0049,496.9,74154.05945261,502.85,486.96]
#  [537,"hb"]
#  [700,"hb"]
#  [700,496.92,233.34338276,496.93,431.78867277,-2.45,-0.0049,496.92,74167.99173586,502.85,486.96]

#  Close the websocket connection.
$success = $ws.SendClose($true,1000,"Closing this websocket.")
if ($success -ne $true) {
    $($ws.LastErrorText)
    exit
}

#  Read the Close response.
$success = $ws.ReadFrame()
if ($success -ne $true) {
    $("ReadFrame fail reason = " + $ws.ReadFrameFailReason)
    $($ws.LastErrorText)
    exit
}

$("Success.")

 

© 2000-2016 Chilkat Software, Inc. All Rights Reserved.