Problem with attachment while getting mime content.

Question

Hi!

Im getting a mime content using "users/{id}/messages/{id}/$value" and in some cases where attachment exists, im not getting a content, only headers for this attachment.

In the original message in the preview in Outlook, the attachment is visible and correct.

Example:

----boundary_50_09690074-de38-46a2-bd74-acc7340270d8

Content-Type: application/pdf; name="example.PDF"

Content-Transfer-Encoding: base64

Content-Disposition: attachment; filename="example.PDF"

Content-Description: example.PDF

{EMPTY CONTENT}

----boundary_50_09690074-de38-46a2-bd74-acc7340270d8--

Answer 1

I will definitely try to download attachments this way, but I am curious why when I use this method:

GET https://graph.microsoft.com/v1.0/me/messages/{id}/$value

sometimes there is no content (attachment).

Example when it is ok.

--_004_AS8PR08MB909483C571FF651316386ECF9EAB9AS8PR08MB9094eurp_
Content-Type: text/plain; name="eft.txt"
Content-Description: eft.txt
Content-Disposition: attachment; filename="eft.txt"; size=195;
	creation-date="Thu, 23 Feb 2023 14:18:19 GMT";
	modification-date="Thu, 23 Feb 2023 14:18:23 GMT"
Content-Transfer-Encoding: base64

WEo1MVotN0U2RUMtSUtMUFQtRUM0NVUNCg0KRTAxV1hGNFdOQkRUVDdXUQ==

--_004_AS8PR08MB909483C571FF651316386ECF9EAB9AS8PR08MB9094eurp_--

Answer 2

Hi @RB

This GET /users/{id}/messages/{id}/$value Graph API will give you MIME content of message with header. If you want to get the content of attachment you need to use GET /users/{id | userPrincipalName}/messages/{id}/attachments/{id}/$value this Graph API endpoint. This will give you raw contents of an attachment that is attached to a user message. Please refer to the below sample screenshot.

Please refer to this documentation for more details.

Hope this helps.

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