Powershell HTTP Get and HTTP Post Sample Source Code

Network Component provides an easy-to-use development interface to a variety of IP protocols. By using Network Component, you can very easily create or enhance applications with network features.

Network Component features the following: DNS, FTP, HTTP, HTTPs, ICMP Ping, IP-to-Country, MSN, NTP, RSH, SCP, SFTP, SNMP v1/v2c (Get, GetNext, Set), SNMP Traps, SNMP MIB, SSH, TCP, Telnet, TFTP, UDP, Telnet, Wake-On-LAN and more.

Network Component can be well integrated into any development platform that supports ActiveX objects.

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The most important functions of the Http object are:

• Connect - connect to the (remote) HTTP web server on port 80 or any alternate port; optionally, use proxy credentials to use a proxy server; optionally, specify a web account and password for password protected web sites
• Disconnect - to diconnect after a connect call;
• ReadData - read all data from a web page;
• WriteData - write data to a web page.

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Step 1: Download and install the Network Component

Download Network Component from the ActiveXperts Download Site and start the installation. The installation guides you through the installation process.

Step 2: Create a new script

Create a new Powershell file called DEMO.PS1.

Create the Network Component object(s) like this:

$objHttp = new-object -comobject AxNetwork.Http

Now, add the following lines to the file to have your fist Network Component Powershell program:

Write-Host "Network Component Version " $objHttp.Version "; "
                             "Build " $objHttp.Build "; "
                             "Module " $objHttp.Module
Write-Host "License Status: " $objHttp.LicenseStatus

Step 4: Read data from a web site

The following Powershell code shows how to get an HTML page from a webserver:

$strUrl = ReadInput "Enter a URL" "www.activexperts.com/products/" $False

$strData = $objHttp.Get( $strUrl )  

Appendix: Full source code

# *******************************************************************
# ActiveXperts Network Component Sample - HTTP Get
# Written by ActiveXperts Software - https://www.activexperts.com
# ********************************************************************

# ***************************************************************************
# Function ReadInput
# ***************************************************************************
Function ReadInput($strPrompt, $strDefaultValue, $bAllowEmpty)
{ 
  $strReturn = ""  
  If ($strDefaultValue -ne "")
  {
     $strPrompt += " (leave empty for " + $strDefaultValue + "): "
  }
  Do 
  {       
    Write-Host $strPrompt
    $strReturn = read-host
    
    If ($strReturn -eq "" -and $strDefaultValue -ne "")
    {
      $strReturn = $strDefaultValue
      Write-Host $strReturn
    }
    elseif ($strReturn -eq "" -and $bAllowEmpty -eq $True)
    {
      break
    }   
  } While ($strReturn -eq "") 
  Write-Host ""
  return $strReturn
}


# ***************************************************************************
# MAIN SCRIPT
# ***************************************************************************

cls

# Create a HTTP instance
$objHttp  = new-object -comobject AxNetwork.HttpEx

# A license key is required to unlock this component after the trial period has expired.
# Call 'Activate' with a valid license key as its first parameter. Second parameter determines whether to save the license key permanently 
# to the registry (True, so you need to call Activate only once), or not to store the key permanently (False, so you need to call Activate
# every time the component is created). For details, see manual, chapter "Product Activation".
#
# $objHttp.LicenseKey = "XXXXX-XXXXX-XXXXX"  

# Display ActiveXperts Network Component Version
Write-Host "ActiveXperts Network Component " $objHttp.Version "`nBuild: " $objHttp.Build "`nModule: "  $objHttp.Module "`nLicense Status: " $objHttp.LicenseStatus "`nLicense Key: " $objHttp.LicenseKey "`n`n";

# Logfile
$objHttp.Logfile = $env:temp + "\Http.log"
Write-Host "Log file used: " $objHttp.Logfile "`n"

$strUrl = ReadInput "Enter a URL" "www.activexperts.com/products/" $False

$strData = $objHttp.Get( $strUrl )
If($objHttp.LastError -eq 0)
{
  Write-Host $strData
}

$res = "Ready."
Write-Host $res

To run the code, start Powershell and browse to the location of the file you just created. Enter .\Demo.ps1 to run the code. Notice that if the script is not working, you have to change the execution policy; you can do that with the following command:

Set-ExecutionPolicy -unrestricted

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You can download the complete samples here. There are many other working Network Component scripts on our site and shipped with the product.