powershell invoke-restmethod multipart/form-data

Question

I\'m currently trying to upload a file to a Webserver by using a REST API. And as mentioned I\'m using PowerShell for this. With curl this is no problem. The call looks like

Answer 1

With PowerShell Core this should work out of the box with the new -Form parameter.

See: https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/invoke-restmethod?view=powershell-7

$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-RestMethod -Uri $Uri -Method Post -Form $Form