Does anyone has any example of Gmail Api resumable uploading(for attachments). I succeeded using the main upload for attachments up to 5 MB but I would like to send attachments over 30 MB.I cant use gmail SDK to everything needs to be in Rest Any suggestions?
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2 Answers
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Gmail API Resumable Upload
The steps for using resumable upload include:
Step 1: Start a resumable session
To initiate a resumable upload, make a POST or PUT request to the method's /upload URI and add the query parameter uploadType=resumable, for example:
POST https://www.googleapis.com/upload/gmail/v1/users/userId/messages/send?uploadType=resumable
For this initiating request, the body is either empty or it contains the metadata only; you'll transfer the actual contents of the file you want to upload in subsequent requests.
Step 2: Save the resumable session URI
If the session initiation request succeeds, the API server responds with a 200 OK HTTP status code. In addition, it provides a Location header that specifies your resumable session URI. The Location header, shown in the example below, includes an upload_id query parameter portion that gives the unique upload ID to use for this session.
Example: Resumable session initiation response
Here is the response to the request in Step 1:
HTTP/1.1 200 OK
Location: https://www.googleapis.com/upload/gmail/v1/users/userId/messages/send?uploadType=resumable&upload_id=xa298sd_sdlkj2
Content-Length: 0
Step 3: Upload the file
To upload the file, send a PUT request to the upload URI that you obtained in the previous step. The format of the upload request is:
PUT session_uri
Full code implementation sample is in the docs.
