Running curl.exe in PowerShell - powershell

Question

I am trying to recreate a working curl command in PowerShell 5.1, but when I run it from the script, it errors out. If I pipe out the constructed command to a text file and run it as-is in a command shell it works. I resorted to attempting curl in PowerShell because I have been unable to get the multipart/form-data to work with the Invoke-RestMethod function. Here is the code I'm using, and the error message is shown below. This is on Windows 10 machine. In a nutshell, this is to upload a zip file to a remote server.
$accessToken = '<Bearer token value from prior API call>'
$inputFile = 'C:\MyFolder1\MyFolder2\MyFile.zip'
$curlCmd = 'C:\Curl\bin\curl.exe'
$uriImport = 'https://api.somecompany.com/import'
$curlArgs = '-X', 'POST',
'--header', '"Content-Type: multipart/form-data"',
'--header', '"Accept: application/json"',
'--header', -join('"Authorization: Bearer ', $accessToken, '"'),
'--form', -join('"files=#', $inputFile, ';type=application/zip"'),
-join('"', $uriImport, '"'), '-s'
Write-Host "$curlCmd $cURLargs"
"$curlCmd $curlArgs" | Out-File 'C:\MyFolder\MyFolder2\Curl_Output.txt'
& $curlCmd $curlArgs
The error PoSH returns:
curl.exe : % Total % Received % Xferd Average Speed Time Time Time Current
At C:\CurlTesting.ps1:65 char:9
+ & $curCmd $cURLargs
+ ~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: ( % Total % ... Time Current:String) [], RemoteException
+ FullyQualifiedErrorId : NativeCommandError
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
0 0 0 0 0 0 0 0 --:--:-- 0:00:01 --:--:-- 0
0 0 0 0 0 0 0 0 --:--:-- 0:00:02 --:--:-- 0
0 0 0 0 0 0 0 0 --:--:-- 0:00:03 --:--:-- 0
0 0 0 0 0 0 0 0 --:--:-- 0:00:04 --:--:-- 0
0 0 0 0 0 0 0 0 --:--:-- 0:00:05 --:--:-- 0
0 0 0 0 0 0 0 0 --:--:-- 0:00:06 --:--:-- 0
curl: (6) Could not resolve host: multipart
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
curl: (6) Could not resolve host: application
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
curl: (6) Could not resolve host: Bearer
curl: (3) URL using bad/illegal format or missing URL
I have tried constructing the quotes with both single and double, but it still errors out; the Windows command prompt does require double-quotes. When I run this same constructed script from a command window (cmd.exe), it runs and I don't get all of that output nor the error - just the expected value from the API.
What am I doing wrong?
Here is the modified, slimmed-down version of the code I got working:
$accessToken = '<Bearer token value from prior API call>'
$inputFile = 'C:\MyFolder1\MyFolder2\MyFile.zip'
$uriImport = 'https://api.somecompany.com/import'
curl.exe -X POST `
--header "Content-Type: multipart/form-data" `
--header "Accept: application/json" `
--header "Authorization: Bearer $accessToken" `
--form "filename=#$inputFile;type=application/zip" `
-s

Answer 1

This is what process monitor says is running. It seems ok to me. I don't have that curl but windows 10 (since 1803) comes with curl.exe now. Beware the curl alias in ps 5.
"C:\windows\system32\curl.exe" -X POST --header "Content-Type: multipart/form-data" --header "Accept: application/json" --header "Authorization: Bearer <Bearer token value from prior API call>" --form "files=#C:\MyFolder1\MyFolder2\MyFile.zip;type=application/zip" "https://api.somecompany.com/import" -s
I would run it this way. It's possible that powershell could lose doublequotes to an external command, that you would need to backslash, but this is as much as I can reproduce. It doesn't look like you're running it in silent mode, "-s".
C:\Curl\bin\curl.exe -X POST --header "Content-Type: multipart/form-data" --header "Accept: application/json" --header "Authorization: Bearer $accessToken" --form "files=#$inputFile;type=application/zip" $uriImport -s