CEX.IO - Powershell API

#CEX.IO - Powershell API Wrapper For CEX.IO Trading Platform

#Created by KazCrypto

#Donation: (Highly Appreciated ^_^)

#BTC: 1DFtAts5oj8AcXkF8AxuJdYThc5hvDUMYr

#LTC: LPfqNz2aKfrRxBLXNUgiLsqPPiXF4jhVzk

#DOGE: DT1Kmq7ba1xq8MWLkzdn1DN5Vkr6RgGm7a

#---------------------------------------------------#

# DEBUGING INFORMATION #

#---------------------------------------------------#

#Uncomment this variable to enable debug message and vice versa

$DebugPreference = "Continue"

$script:_USERID = ""

$script:_APIKEY = ""

$script:_APISEC = ""

$HS256 = New-Object System.Security.Cryptography.HMACSHA256

#---------------------------------------------------#

# API FUNCTION #

#---------------------------------------------------#

#Function --> createVar "USERNAME" "APIKEY" "API_SECRET"

#Usage : Store user information into variable for private api connection purpose

function createVar

{

$script:_USERID = $args[0]

Write-Debug ("Variable _USERID = " + $_USERID)

$script:_APIKEY = $args[1]

Write-Debug ("Variable _APIKEY = " + $_APIKEY)

$script:_APISEC = $args[2]

Write-Debug ("Variable _APISEC = " + $_APISEC)

}

#Function --> createSign

#Usage : Create signature for functioning part of apiCall

function createSign

{

$script:_TimeStamp = [int][double]::Parse((Get-Date -UFormat %s))

#Some hack for maintaining timestamp for request purpose

$script:rTimeStamp = $script:_TimeStamp

Write-Debug ("Using Timestamp As Nonce = " + $script:rTimeStamp)

#Combining nonce, username, and apikey to be hashed

$_HMSG = $script:rTimeStamp.ToString() + $script:_USERID + $script:_APIKEY

Write-Debug ("MSG --> Compute Hash = " + $script:_HMSG)

#Init HMAC-SHA256 Key - Set HMAC-SHA256 Secret Key

$HS256.Key = [System.Text.Encoding]::UTF8.GetBytes($_APISEC)

Write-Debug ("_APISEC <> HS256KEY = " + [System.BitConverter]::ToString($HS256.Key)).Replace("-","").ToUpper()

#Compute $_HMSG with HMAC-SHA256

$script:_HRESULT = $HS256.ComputeHash([System.Text.Encoding]::UTF8.GetBytes($_HMSG))

Write-Debug ("SIGHASH = " + [System.BitConverter]::ToString($script:_HRESULT).Replace("-","").ToUpper())

}

#Function --> apiCall

#Usage : Communication function for accessing CEX.IO API

function apiReq

{

#Set baseURL to CEX.IO api server

$baseURL = "https://cex.io/api/"

#Function WhatIF

#Pretty much straight forward here :\

IF ($args[0] -eq "ticker")

{

$URI = $baseURL + $args[0] + "/" + $args[1] + "/"

$restClient = Invoke-RestMethod -Uri $URI -Method Get -UserAgent "CEX-IO|PowerShellR0.1|API-ACCESS"

return $restClient

} elseif ($args[0] -eq "order_book") {

$URI = $baseURL + $args[0] + "/" + $args[1] + "/" + "?depth=" + $args[2]

$restClient = Invoke-RestMethod -Uri $URI -Method Get -UserAgent "CEX-IO|PowerShellR0.1|API-ACCESS"

return $restClient

} elseif ($args[0] -eq "trade_history") {

$URI = $baseURL + $args[0] + "/" + $args[1] + "/" + "?since=" + $args[2]

$restClient = Invoke-RestMethod -Uri $URI -Method Get -UserAgent "CEX-IO|PowerShellR0.1|API-ACCESS"

return $restClient

}

#Private API Access - Function WhatIF

#Again, pretty much straight forward here :\

elseif ($args[5] -eq $true) {

#TODO: Add APIKEY,APISECRET,USERNAME value check. Else throw error.

if ($args[0] -eq "balance")

{

Write-Debug ("Received Parameter: " + $args[0] + ", Requesting account balance...")

createSign

$URI = $baseURL + $args[0] + "/"

$_param = @{key=$_APIKEY;signature=([System.BitConverter]::ToString($_HRESULT).Replace("-","").ToUpper());nonce=$script:rTimeStamp}

$restClient = Invoke-RestMethod -Uri $URI -Body $_param -Method POST -UserAgent "CEX-IO|PowerShellR0.1|API-ACCESS"

return $restClient

} elseif ($args[0] -eq "open_orders")

{

Write-Debug ("Received Parameter: " + $args[0] + ", Requesting current open orders... ")

createSign

$URI = $baseURL + $args[0] + "/" + $args[1] + "/"

$_param = @{key=$_APIKEY;signature=([System.BitConverter]::ToString($_HRESULT).Replace("-","").ToUpper());nonce=$script:rTimeStamp}

$restClient = Invoke-RestMethod -Uri $URI -Body $_param -Method POST -UserAgent "CEX-IO|PowerShellR0.1|API-ACCESS"

return $restClient

} elseif ($args[0] -eq "cancel_order")

{

Write-Debug ("Received Parameter: " + $args[0] + ", Cancelling order with order ID " + $Args[2])

createSign

$URI = $baseURL + $args[0] + "/"

$_param = @{key=$_APIKEY;signature=([System.BitConverter]::ToString($_HRESULT).Replace("-","").ToUpper());nonce=$script:rTimeStamp;id=$args[2]}

$restClient = Invoke-RestMethod -Uri $URI -Body $_param -Method POST -UserAgent "CEX-IO|PowerShellR0.1|API-ACCESS"

return $restClient

} elseif ($args[0] -eq "place_order")

{

Write-Debug ("Received Parameter: " + $args[0] + ", Placing order with parameter " + $Args[1] + " - " + $Args[2] + " " + $Args[3] + " @ " + $Args[4])

createSign

$URI = $baseURL + $args[0] + "/" + $args[1] + "/"

$_param = @{key=$_APIKEY;signature=([System.BitConverter]::ToString($_HRESULT).Replace("-","").ToUpper());nonce=$script:rTimeStamp;type=$args[2];amount=$args[3];price=$args[4]}

$restClient = Invoke-RestMethod -Uri $URI -Body $_param -Method POST -UserAgent "CEX-IO|PowerShellR0.1|API-ACCESS"

return $restClient

} else

{

Write-Debug ("Received Parameter: " + $args[0] + ", Unexepected Parameter Received")

$Host.UI.WriteErrorLine("ERROR: Unexpected Parameter have been received. Please check arguments!")

}

} else {

Write-Debug ("Received Parameter: " + $args[0] + ", Unexepected Parameter Received")

$Host.UI.WriteErrorLine("ERROR: Unexpected Parameter have been received. Please check arguments!")

}

}