example batch

batch.http

POST graph.microsoft.com/v1.0/$batch
{
  "requests": [ 
    {
      "url": "/me?$select=displayName,jobTitle,userPrincipalName", 
      "method": "GET", 
      "id": "1" 
    }, 
    { 
      "url": "/me/messages?$filter=importance eq 'high'&$select=from,subject,receivedDateTime,bodyPreview", 
      "method": "GET", 
      "id": "2" 
    }, 
    { 
      "url": "/me/events", 
      "method": "GET", 
      "id": "3" 
    } 
  ] 
}