Powershell Invoke-Webrequest "No file part in file" CURL to Powershell

Question

I'm trying to convert this working request done in Cygwin to Powershell:

Cygwin (Working):

curl -k -u curl:Password -X PUT -F "file=$($_)" https://$($appliance)/wse/customblockpage/file/en

Powershell (not working):

Invoke-Webrequest -Uri "https://$($appliance)/wse/customblockpage/file/en" -Method Put -Infile "$homePath\$($_)" -Credential $cred

Here is the error I get:

Invoke-Webrequest : { "Error": "No file part in file", "Result": "Failure" } At line:1 char:1 + Invoke-Webrequest https://{IP Address Masked}/wse/customblockpage/file/en ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebException + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand

Don Cruickshank · Accepted Answer · 2018-10-17 09:15:26Z

0

The { "Error": "No file part in file", "Result": "Failure" } is actually the error response from the web server and not a specific PowerShell error message.

In your cURL invocation, you are specifying form data with the -F flag, yet you don't appear to be doing the same in PowerShell.

In PowerShell, you can specify form data using the -Body flag like this:

Invoke-Webrequest -Uri "https://example.com/" -Method Put -Body @{ "file" = "hello.txt" }

If you need to send the actual content of the file, then you can use this as your -Body argument:

-Body @{ "file" = (Get-Content hello.txt) }

edited Oct 17, 2018 at 9:15

answered Oct 16, 2018 at 23:15

Don Cruickshank

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6 Comments

Basam Yacoub Over a year ago

Thank you. That is a good starting point. I went ahead and modified to: Invoke-Webrequest -Uri "https://$($appliance)/wse/customblockpage/file/en" -Method Put -Body @{ "file" = "@./$($_)" } -Credential $cred -ContentType "multipart/form-data" This is the new error: "Language": "en", "Message": "Failure", "Result": "Failure" Any ideas? I tried changing from Put to Post, but I get the same effect.

Don Cruickshank Over a year ago

If it must be sent as multipart/form-data then that is already answered here: stackoverflow.com/questions/22491129/…

Basam Yacoub Over a year ago

In my comment it is set as contentType "mulitpart/form-data"

Basam Yacoub Over a year ago

"https://$($appliance)/wse/customblockpage/file/en" -Method Put -Body @{ "file" = "@./$($_)" } -Credential $cred -ContentType "multipart/form-data"

Don Cruickshank Over a year ago

Just setting the content type isn't enough. Windows PowerShell doesn't support multipart/form-data yet and so you will need to use the link I posted if it turns out to be necessary.

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