Get attachment content is not implemented

[Renji-FR]

Hi,

The Graph API documentation describe how to retrieve attachment content from the API:

https://learn.microsoft.com/en-us/graph/api/attachment-get?view=graph-rest-1.0&tabs=http

GET /me/messages/{id}/attachments/{id}
GET /users/{id | userPrincipalName}/messages/{id}/attachments/{id}

GET /me/messages/{id}/attachments/{id}/$value
GET /users/{id | userPrincipalName}/messages/{id}/attachments/{id}/$value

One example: https://learn.microsoft.com/en-us/graph/api/attachment-get?view=graph-rest-1.0&tabs=http#example-8-get-the-mime-raw-contents-of-an-event-attachment-on-a-message

GET https://graph.microsoft.com/v1.0/me/messages/AAMkADVIOAAA=/attachments/AAMkADVIOAAABEgAQACvkutl6c4FMifPyS6NvXsM=/$value

The issue is $value seems not to be implemented.

class AttachmentItemRequestBuilderGetQueryParameters
        """
        The fileAttachment and itemAttachment attachments for the message.
        """
        # Expand related entities
        expand: Optional[List[str]] = None

        # Select properties to be returned
        select: Optional[List[str]] = None

The class AttachmentItemRequestBuilderGetQueryParameters does not contain value : Optional[bool] = None

So it is not possible to use $value like described in https://learn.microsoft.com/en-us/graph/query-parameters?tabs=http#other-odata-url-capabilities

$value	Retrieves or updates the binary value of an item.	GET /me/photo/$value

[Renji-FR]

I use that as workaround:

from msgraph.generated.models.attachment_item import AttachmentItem

# attachment is of type AttachmentItem

content = attachment.additional_data['content_bytes']
content = base64.b64decode(content)
content = content.decode('ascii')

[Renji-FR]

@samwelkanda @baywet Hi

With the last version of your SDK, my workaround does not work anymore:

from msgraph.generated.models.attachment_item import AttachmentItem

# attachment is of type AttachmentItem

content = attachment.additional_data['content_bytes']
content = base64.b64decode(content)
content = content.decode('ascii')

content_bytes does not exist anymore.

I can not find any documentation to download mail attachments.
I think I am not alone, see #110

[Renji-FR]

Ok found how to download a message attachment:

request_message = self._msgraph_request.messages.by_message_id(message_id)
request_attachment = request_message .attachments.by_attachment_id(attachment_id)

attachment = await request_attachment .get(
    request_configuration=request_config
)

content = attachment.content_bytes
content = base64.b64decode(content)
content = content.decode('ascii')