Equivalent curl -F in PowerShell Invoke-webrequest - powershell

Question

I'm trying to find the equivalent of this curl command in PowerShell with Invoke-webrequest :
curl -k https://url/api \
-H "Authorization: mykey" \
-F "json=#test.json;type=application/json" \
-F "file=#test.txt; type=application/octet-stream"```
-H is ok, but I didn't find for two -F option.
Any idea ?
Many thanks.

Answer 1

The -f switch in cUrl is used for a multi-part formdata content type. PowerShell fortunately natively supports it, here's a generic example to get you started.
$Uri = 'https://api.contoso.com/v2/profile'
$Form = #{
firstName = 'John'
lastName = 'Doe'
email = 'john.doe#contoso.com'
avatar = Get-Item -Path 'c:\Pictures\jdoe.png'
birthday = '1980-10-15'
hobbies = 'Hiking','Fishing','Jogging'
}
$Result = Invoke-WebRequest -Uri $Uri -Method Post -Form $Form
And for your specific scenario, something like this should get you moving in the right direction.
$url = 'https://url/api'
$Form = #{
json = Get-Content .\test.json
file = Get-Content .\test.txt
}
$Result = Invoke-WebRequest -Uri $Uri -Method Post -Form $Form -Token "mkey"

Answer 2

It seems like you should be able to do -Form ... -Form ... but you can't, you need to build a multipart form object to submit.
see example 5 of the Microsoft docs https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/invoke-webrequest?view=powershell-7.1
or this https://stackoverflow.com/a/65093133/89584 answer
or just install curl on windows (https://stackoverflow.com/a/16216825/89584) and use curl's nicer API