Unable to send a chat message, via team and channel id, using Microsoft Graph

Question

Hi All,

After attempting to send a chat message via Microsoft Graph API, I get the error below. However, my payload shows the message body is being sent (Please note I have erased token from screenshot). It appears that the server is rejecting my Post request because it can not parse the body, which is in json format. The exact same query runs fine in Graph Explorer. Can anyone provide any advise on fixing this issue?

Here is a snippet of my options and endpoint for my Fetch post request:

const url = "https://graph.microsoft.com/v1.0/teams/5834e4c1-2897-4cc3-b274-91a091900b56/channels/19:1df3a1da1e9b48eeaba2ef3d2f61834f@thread.tacv2/messages";  
  
const options = {  
                  method: "POST",  
                  headers: {  
                    Authorization: `Bearer ${response.accessToken}`,  
                    "Content-type": "application/json",  
                  },  
                body: JSON.stringify({  
                    content: 'Hello Word'  
                    }),  
              };  

Answer 1

Content is a property and not serialized as string.

   POST https://graph.microsoft.com/v1.0/teams/fbe2bf47-16c8-47cf-b4a5-4b9b187c508b/channels/19:4a95f7d8db4c4e7fae857bcebe0623e6@thread.tacv2/messages  
   Content-type: application/json  
     
   {  
     "body": {  
       "content": "Hello World"  
     }  
   }  

Please refer to https://learn.microsoft.com/en-us/graph/api/chatmessage-post?view=graph-rest-1.0&tabs=http#example-1-send-a-hello-world-message-in-a-channel