jira rest-api attach file to issue using powershell - powershell

Question

I want to attach a file to an jira issue , i am able to do it with postman, but have tried several ways without break through.
my code looks like this
function ConvertTo-Base64($string) {
$bytes = [System.Text.Encoding]::UTF8.GetBytes($string);
$encoded = [System.Convert]::ToBase64String($bytes);
return $encoded;
}
function Get-HttpBasicHeader([string]$username, [string]$password, $Headers = #{}) {
$b64 = ConvertTo-Base64 "$($username):$($Password)"
$Headers["Authorization"] = "Basic $b64"
$Headers["X-Atlassian-Token"] = "nocheck"
return $Headers
}
$restapiuri = "https://xxxx.xxxx.com/rest/api//2/issue/test-8442/attachments"
$headers = Get-HttpBasicHeader "xxxxxx" "xxxxxxxx"
$myfile = "C:\TEMP\out.txt"
$fileBytes = [System.IO.File]::ReadAllBytes($myfile);
$fileEnc = [System.Text.Encoding]::GetEncoding('UTF-8').GetString($fileBytes);
$boundary = [guid]::NewGuid().ToString()
$LF = "`r`n";
$body = '(
"--$boundary",
"Content-Disposition: form-data; name=`"fil`"; filename=`"out.txt`"",
"Content-Type: application/octet-stream$LF",
$fileEnc,
"--$boundary--$LF"
) -join $LF
'
Invoke-RestMethod -uri $restapiuri -Headers $headers -Method POST -ContentType "multipart/form-data; boundary=`"$boundary`"" -Body $body
In postman i am doing a post request with
Authorization
Basic Auth
headers
header X-Atlassian-Token = o-check
Content-Type = multipart/form-data
Body form-data
key value
file filepath
The powershell doesn't return any errors, but it does not attach any file either
I have tried several examples without luck so if any of you have any ideas on have to do this in powershell i would be glad.
I am on powershell version
Major Minor Build Revision
5 1 14409 1018

Answer 1

I found the following that looks to be a good fit for this scenario.
function Upload-JiraFile($jiraTicket, $filepath, $authorization)
{
$wc = new-object System.Net.WebClient
$wc.Headers.Add("Authorization", $authorization)
$wc.Headers.Add("X-Atlassian-Token", "nocheck")
$wc.UploadFile("$URIPath/issue/$jiraTicket/attachments", $filepath)
}
Here is how you could use it with the bare minimal modification to the code you have today:
$URIPath = "https://xxxx.xxxx.com/rest/api/2"
Upload-JiraFile -JiraTicket test-8442 -FilePath c:\temp\MyJpg.jpg `
-Authorization $Headers["Authorization"]
Excerpted from this thread.