Gmail REST api batch support for getting messages

Question

We need to switch from google client library to Gmail REST api in our project, and I\'ve encountered a problem with batch() because it is not available in REST api - you can

Answer 1

• You need to include gmail/v1 on the POST URL and on each request.
• Don't forget about the " around your boundary on the Content-Type header.

See original batch gmail requests documentation: https://developers.google.com/gmail/api/guides/batch

The following worked for me:

POST /batch/gmail/v1 HTTP/1.1
Host: www.googleapis.com
Authorization: Bearer {YOUR_ACCESS_TOKEN}
Content-Type: multipart/mixed; boundary="foo_bar"

--foo_bar
Content-Type: application/http

GET /gmail/v1/users/me/messages/1732ebdcb9b8cccf
--foo_bar
Content-Type: application/http

GET /gmail/v1/users/me/messages/1732ecadae4907e2

--foo_bar--

Creating request with Postman - body screenshot

Creating request with Postman - headers screenshot