Download Email Attachment — Using Graph Api __link__

: Allows the app to read emails in the signed-in user's mailbox.

download attachments from mail using microsoft graph rest api download email attachment using graph api

: (For service apps) Allows the app to read basic properties of all mailboxes without a user present. : Allows the app to read emails in

To start, you must register an application in the Microsoft Entra admin center and grant it the necessary API permissions. import base64 # Assume 'attachment' is the JSON

import base64 # Assume 'attachment' is the JSON response from the API file_content = base64.b64decode(attachment['contentBytes']) with open(attachment['name'], 'wb') as f: f.write(file_content) Use code with caution. Method B: Get Raw Content ( /$value )

This is the standard approach. You fetch the attachment object, which contains the contentBytes property— a base64-encoded string of the file.

Attachments are linked to specific messages. You first need to find the id of the email containing the attachment. Use a $filter to target emails with attachments specifically. GET https://microsoft.com eq true 3. Retrieve and Download the Attachment There are two primary methods for downloading the file: Method A: Get File Properties (ContentBytes)