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URL: https://stackoverflow.com/questions/39881036/invoke-webrequest-failure
Submission: On March 10 via manual from US — Scanned from US

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INVOKE-WEBREQUEST FAILURE

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Asked 7 years, 5 months ago
Modified 2 months ago
Viewed 10k times
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The issue is that I got a script from a vendor to pull data from a DB. The
script is having a problem with the Invoke-WebRequest Section.

Here is the Script:

$url = @'
https://demo.liquidwarelabs.com/lwl/api?json={"inspector":"0","basis":"users","date":"yesterday","limit":"0","columns":"user_name,login_count","output":"1:html","header":"1"}
'@
$output = "c:\export\Tier1\view1.csv"
Invoke-WebRequest $url -OutFile $output


Here is the Error I get:

> Invoke-WebRequest : The underlying connection was closed: An unexpected error
> occurred on a send. At C:\Scripts\3.ps1:38 char:1 + Invoke-WebRequest $url
> -OutFile $output + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo :
> InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest)
> [Invoke-WebRequest], WebException + FullyQualifiedErrorId :
> WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand

 * powershell

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edited Oct 5, 2016 at 18:39

techspider
3,4201313 gold badges3737 silver badges6363 bronze badges
asked Oct 5, 2016 at 18:14

MySearchMySearch
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1
 * 1
   Works for me. I get a response, though that response is a webpage with the
   text "Not Authorized" and "HTTP 403". Are you certain you don't have a proxy
   (or something else in your internet stack) interfering with the connection?
   – Ryan Bemrose
   Oct 5, 2016 at 18:44

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You probably need to URL encode the JSON:

$url = 'https://demo.liquidwarelabs.com/lwl/api?json='
$json = '{"inspector":"0","basis":"users","date":"yesterday","limit":"0","columns":"user_name,login_count","output":"1:html","header":"1"}'
$encodedjson = [System.Web.HttpUtility]::UrlEncode($json)
$output = "c:\export\Tier1\view1.csv"
Invoke-WebRequest ($url+$encodedjson) -OutFile $output


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answered Oct 5, 2016 at 18:48

Christopher G. LewisChristopher G. Lewis
4,82711 gold badge2828 silver badges4646 bronze badges
2
 * Thank you - I'll give it a try.
   – MySearch
   Oct 6, 2016 at 18:00
 * I had to do Add-Type -AssemblyName System.Web beforehand to get this to work.
   – ken
   Feb 22 at 16:25

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