GET/POST requests Google Drive API - google-drive-api

Question

I learning currently Google Drive API and developing program in Qt C + + (using OAuth2), so I need to build queries, but I'm not found how to do it.
For example, if I make a request - https://www.googleapis.com/oauth2/v1/userinfo?access_token=MY_ACCESS_TOKEN, everything is working OK - I get the reply.
Question is: how to make a SIMILAR request for the Google Drive?
1) how can I get a list of folders and files
2) how can I create a folder / file
etc.
For example, in a POST request
"https://www.googleapis.com/drive/v1/files&title=pets&mimeType=application/vnd.google-apps.folder"
I get
"error": {
"errors": [{
"domain": "global",
"reason": "parseError",
"message": "Parse Error"
}
],
"code": 400,
"message": "Parse Error"
}
}
how to get a list of folders and files, for example, etc., I do not understand
Any opinions/examples are welcome!
thanks in advance

Answer 1

Unfortunately, the Drive API doesn't let you list folders or files. The only way to retrieve a file is by integrating with the Drive web UI or showing a Google Picker to your user (web app only).
Once you have a File ID, you can simply send an authorized GET request to the drive.files.get endpoint:
GET https://www.googleapis.com/drive/v1/files/id
To insert a file (or a folder), the File's metadata is to be included in the request body, not as query parameter:
POST https://www.googleapis.com/drive/v1/files
Authorization: Bearer {ACCESS_TOKEN}
Content-Type: application/json
...
{
"title": "pets",
"parentsCollection": [{"id":"0ADK06pfg"}]
"mimeType": "application/vnd.google-apps.folder"
}
In the example above, the mimeType specifies that the resource being inserted is a folder. Change the mimeType to your application MIME type when inserting a file.

Answer 2

You should use google docs API for that
Retrieving a list of collections - Google Documents List API version 3.0
In OAuth 2.0 Playground just select both Documents List and Google Drive
And you will get full list of operations:
List FolderContent
GET https://docs.google.com/feeds/default/private/full/{folderResouceId}/contents
Don't forget to add the ?v=3 query parameter to the Document list URI or adding
GData-Version: 3.0
header, otherwise it will return "Invalid request URI".

Answer 3

You advise you to look at the google drive api reference docs in
https://developers.google.com/drive/v3/reference/files/list
i succeeded using many api functions following link above and using curl. But actually i recommend you trying to do http requests with a tool like postman. Anyway after getting access code following the steps link below
list google drive files with curl
try to make following command in the command line.
curl -H 'GData-Version: 3.0' -H "Authorization: Bearer $ACCESS_TOKEN" \
https://www.googleapis.com/drive/v2/files?maxResults=$100