Check if mail is read, gmail api

Question

I am working on a gmail app (you can probably tell if you read my other questions), I can list my first 10 email, however I have no way of knowing weather they are read or not. Does anyone know how I would even go about this? Thanks!

Answer 1

If I list my newest message:

Request

GET https://www.googleapis.com/gmail/v1/users/me/messages?maxResults=1&access_token={ACCESS_TOKEN}

Response

{
 "messages": [
  {
   "id": "158d822014b7887b",
   "threadId": "158d822014b7887b"
  }
 ],
 "nextPageToken": "17683191771541399341",
 "resultSizeEstimate": 2
}

And then get the message:

Request

GET https://www.googleapis.com/gmail/v1/users/me/messages/158d822014b7887b?format=metadata&access_token={ACCESS_TOKEN}

Response

{
 "id": "158d822014b7887b",
 "threadId": "158d822014b7887b",
 "labelIds": [
  "UNREAD",
  "CATEGORY_SOCIAL",
  "INBOX"
 ],
 ...
}

You can see that the message has a labelId with the value of UNREAD. If the message doesn't have this labelId, it is read.

var isRead = message.labelIds.indexOf("UNREAD") === -1;