Have to upload files into Sharepoint online using Graph API

Question

Hi All,

I want to upload small and large documents into SharePoint online document library using Microsoft API.

Please help me how to do it and where I will have to write the code.

Looking for your feedback.

Answer 1

This Microsoft Learn module demonstrates how to upload both small and large files to SharePoint Online using Microsoft Graph.

Access Files with Microsoft Graph

The code to upload a small file is relatively simple.

var fileName = "smallfile.txt";  
var filePath = Path.Combine(System.IO.Directory.GetCurrentDirectory(), fileName);  
Console.WriteLine("Uploading file: " + fileName);  
  
FileStream fileStream = new FileStream(filePath, FileMode.Open);  
var uploadedFile = client.Me.Drive.Root  
                              .ItemWithPath("smallfile.txt")  
                              .Content  
                              .Request()  
                              .PutAsync<DriveItem>(fileStream)  
                              .Result;  
Console.WriteLine("File uploaded to: " + uploadedFile.WebUrl);  

The code to upload a larger file requires chunking.

var fileName = "largefile.zip";  
var filePath = Path.Combine(System.IO.Directory.GetCurrentDirectory(), fileName);  
Console.WriteLine("Uploading file: " + fileName);  
  
// load resource as a stream  
using (Stream stream = new FileStream(filePath, FileMode.Open))  
{  
    var uploadSession = client.Me.Drive.Root  
                                    .ItemWithPath(fileName)  
                                    .CreateUploadSession()  
                                    .Request()  
                                    .PostAsync()  
                                    .Result;  
  
    // create upload task  
    var maxChunkSize = 320 * 1024;  
    var largeUploadTask = new LargeFileUploadTask<DriveItem>(uploadSession, stream, maxChunkSize);  
  
    // create progress implementation  
    IProgress<long> uploadProgress = new Progress<long>(uploadBytes =>  
    {  
        Console.WriteLine($"Uploaded {uploadBytes} bytes of {stream.Length} bytes");  
    });  
  
    // upload file  
    UploadResult<DriveItem> uploadResult = largeUploadTask.UploadAsync(uploadProgress).Result;  
    if (uploadResult.UploadSucceeded)  
    {  
        Console.WriteLine("File uploaded to user's OneDrive root folder.");  
    }  
}  

Answer 2

Hi,

not sure if the code helped you. I wrote a code in PowerShell, which might help you too.
https://sposcripts.com/how-to-upload-files-to-sharepoint-using-graph-api/

Param (  
    $Tenant = "m365x323732",  
    $AppID = "e0b8aefa-cb52-4bda-93a0-7d87120bcdbb",  
    $SiteID = "e35cee33-6d10-4e2c-a83b-496a26062ad3",  
    $LibraryURL = "https://m365x323732.sharepoint.com/sites/SalesAndMarketing/Shared%20Documents",  
    $Path = "C:\Users\Serkar\Desktop\security.png"  
)  
  
$AppCredential = Get-Credential($AppID)  
  
#region authorize  
$Scope = "https://graph.microsoft.com/.default"  
  
$Body = @{  
    client_id = $AppCredential.UserName  
    client_secret = $AppCredential.GetNetworkCredential().password  
    scope = $Scope  
    grant_type = 'client_credentials'  
}  
  
$GraphUrl = "https://login.microsoftonline.com/$($Tenant).onmicrosoft.com/oauth2/v2.0/token"  
$AuthorizationRequest = Invoke-RestMethod -Uri $GraphUrl -Method "Post" -Body $Body  
$Access_token = $AuthorizationRequest.Access_token  
  
$Header = @{  
    Authorization = $AuthorizationRequest.access_token  
    "Content-Type"= "application/json"  
}  
#endregion  
  
#region get drives  
  
  
$GraphUrl = "https://graph.microsoft.com/v1.0/sites/$SiteID/drives"  
  
$BodyJSON = $Body | ConvertTo-Json -Compress  
$Result = Invoke-RestMethod -Uri $GraphUrl -Method 'GET' -Headers $Header -ContentType "application/json"   
$DriveID = $Result.value| Where-Object {$_.webURL -eq $LibraryURL } | Select-Object id -ExpandProperty id  
  
If ($DriveID -eq $null){  
  
    Throw "SharePoint Library under $LibraryURL could not be found."  
}  
  
#endregion  
  
#region upload file  
  
$FileName = $Path.Split("\")[-1]  
$Url  = "https://graph.microsoft.com/v1.0/drives/$DriveID/items/root:/$($FileName):/content"  
  
Invoke-RestMethod -Uri $Url -Headers $Header -Method Put -InFile $Path -ContentType 'multipart/form-data' -Verbose  
#endregion   

Answer 3

IF YOU'RE USING VERSION 5 OF MICROSOFT GRAPH SDK ("Request()" has been deprecated from the Fluent UI)

var item = await graphClient
    .Drives[driveId]
    .Root
    .ItemWithPath(spPath)
    .Content
    .PutAsync(stream);

Answer 4

Hi @Sunny Rastogi ,

According to my research and testing, you can use the following Graph API to upload files to SharePoint drive:

PUT /sites/{site-id}/drive/items/{parent-id}:/{filename}:/content  

If you want to upload large files, you can upload large files with an upload session , please try to use the following Graph API to create an upload session:

POST /sites/{siteId}/drive/items/{itemId}/createUploadSession  

More information for reference:
Upload small files: Upload or replace the contents of a DriveItem (Note: This method only supports files up to 4MB in size.)
Upload large files: Upload large files with an upload session

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Answer 5

Hi

You can upload files to SharePoint Online using any programming language with Graph API.

Example: [https://stackoverflow.com/questions/49776955/how-to-upload-a-large-document-in-c-sharp-using-the-microsoft-graph-api-rest-cal