Issue with send message with file to MS Teams Channel using graph api

Question

I am trying to send csv file to MS teams channel using graph API with below document;

https://learn.microsoft.com/en-us/graph/api/chatmessage-post?view=graph-rest-beta&tabs=http

This is working but I want to skip file uploading to SharePoint and send it directly to the channel by using the following document but getting error message:

https://learn.microsoft.com/en-us/graph/api/resources/chatmessageattachment?view=graph-rest-1.0#:~:text=application%2Fvnd.,%2Cbuttons%2C%20and%20input%20fields

In this document as it is mentioned to give content-type as "file" and contentUrl with base64 encoding of the file. Below is my code:

Method: POST

EndPoint: https://graph.microsoft.com/v1.0/teams/{teamId}/channels/{channel id}/messages

Request Body:

{
"body": {
"contentType": "html",
"content": "Here's the latest budget. <attachment id=\"1\"></attachment>"
},
"attachments": [
{
"id": "1",
"contentType": "file",
"contentUrl": "U2VudCBTdW5kYXkgYXQgMDg6MzA6MjYKCldlZWtseSBTdGF0dXMgUmVwb3J0ClRvdGFsIE91dHN0YW5kaW5nIFJlcXVlc3QsMTcKQ2xvc2VkIHRoaXMgd2VlaywyClJlcXVlc3QgT3BlbiBNb3JlIFRoYW4gNSAgIGRheXMsMTcKVW5hc3NpZ25lZCwxCgpZRFQKQ2xvc2VkIFJlcXVlc3RzLDI0Ck9wZW4gTW9yZSBUaGFuIDUgZGF5cywxNwoKQXNzaWduZWUsVG90YWwgIyBvdXRzdGFuZGluZyBvZiByZXF1ZXN0LENsb3NlZCB0aGlzIHdlZWssT3BlbiBtb3JlIHRoYW4gNSBkYXlzCiwxLDAsMApKYWNrIFF1aW50b24sNSwwLDUKSmFzb24gUGFsb21pbm8sMTEsMiwxMQpWZW5rYXQgQnVsdXN1LDEsMCwxCg==",
"name": "report4.csv",
"content": ""
}
]
}
Response:

{
"error": {
"code": "BadRequest",
"message": "Failed to process content in attachment with Id '1'.",
"innerError": {
"date": "2021-03-24T05:50:12",
"request-id": "baeab6b4-92f9-4a56-b8d9-9697fd0d4423",
"client-request-id": "f0190d39-1e83-63f2-ec50-ddba0078f15f"
}
}
}

Answer 1

Hi @Pradip Kumbhar in the meantime, you could add the file to Teams via the client and get the url then reference that in the contentUrl field.

I hope this helps,

Diana.

Answer 2

Copying answer from comments for better understanding

Finally, I am able to figure out the issue, there was an issue with View ID and Content URL.

The vieweId should be documented source ID, it will be visible in browser with the label "sourcedoc".

In the case of the root site, we need to provide /:x:/r/ in addition to the file path

Correct URL Path:
https://nowlabcorp.sharepoint.com/:x:/r/Shared%20Documents/report.csv

please check :https://learn.microsoft.com/en-us/answers/questions/335233/sorry-this-file-has-been-deleted-or-moved-teams-gr.html