Inconsistent behavior when attempting to create a OneNote page with rendered PDF via API

Question

Inconsistent behavior when attempting to create a OneNote page with rendered PDF via API

Brad Behe 1

I've been attempting to create a new page in OneNote to display a rendered PDF page, my code is as follows

$n = [System.Guid]::NewGuid().ToString();   
$content = @"   
<!DOCTYPE html>  
<html>  
<head>  
<title>$n</title>  
</head>  
<body>  
<img data-render-src =`"name:$n`" />  
</body>  
</html>  
"@    
$fileBytes = [System.IO.File]::ReadAllBytes($FilePath);  
$fileEnc = [System.Text.Encoding]::GetEncoding('ISO-8859-1').GetString($fileBytes);  
$boundary = [System.Guid]::NewGuid().ToString();   
$LF = "`r`n";  
$bodyLines = (   
    "--$boundary`r`nContent-Disposition: form-data; name=`"Presentation`"",  
    "Content-Type: text/html$LF",  
    $content,   
    "--$boundary`r`nContent-Disposition: form-data; name=`"$n`"",  
    "Content-Type: application/pdf$LF",  
    $fileEnc,  
    "--$boundary--$LF"   
) -join $LF  
  
$r = Invoke-RestMethod -Headers @{Authorization = "Bearer $($myAccessToken.AccessToken)"; Boundary = $boundary } `  
    -Uri "https://graph.microsoft.com/v1.0/groups/$group/onenote/sections/$sectionId/pages" `  
    -Method POST `  
     -ContentType "multipart/form-data; boundary=`"$boundary`"" -Body $bodyLines

The code works fine some of the time. Without reason or rhyme, sometimes the page will be created with a rendered pdf like I want. Other times the page will be created with a file attachment instead. The file is correct and can be downloaded and opened fine from the one note.

I've tried multiple different ways to approach this problem and nothing seems to produce a consistent result and there is no pattern to the errors. Any suggestions would be greatly appreciated

CarlZhao-MSFT 46,456 Reputation points

2021-07-07T09:36:54.88+00:00

Hi, I did test locally without errors. Are your errors random?
Brad Behe 1 Reputation point

2021-07-08T13:01:17.74+00:00

Yes, it appears to be at random. Rerunning the code multiple times with the same file will produce different results. Sometimes the pdf will be rendered like I expect, other times it'll display as a file to be downloaded
CarlZhao-MSFT 46,456 Reputation points

2021-07-22T07:49:47.687+00:00

I will submit this issue to Microsoft, please wait for my message :)