You can authenticate with Google to create your own instance of the Google Drive connector through the UI or through APIs. Once authenticated, Google Drive can use the connector instance to access the different functionalities offered by the Google Drive platform.

Authenticate Through the UI

Use the UI to authenticate with Google Drive and create a connector instance. Because you authenticate with Google Drive via OAuth 2.0, all you need to do is add a name for the instance. After you create the instance, you'll log in to Google Drive to authorize SAP Open Connectors access to your account. For more information about authenticating a connector instance, see Authenticate a Connector Instance (UI). 

After successfully authenticating, we give you several options for next steps. Make requests using the API docs associated with the instance, map the instance to a common resource, or use it in a formula template.

Authenticate Through API

Authenticating through API is a multi-step process that involves:

• Getting a redirect URL. This URL sends users to the vendor to log in to their account.
• Authenticating users and receiving the authorization grant code. After the user logs in, the vendor makes a callback to the specified url with an authorization grant code.
• Authenticating the connector instance. Using the authorization code from the vendor, authenticate with the vendor to create a connector instance at SAP Open Connectors.

Getting a Redirect URL

Use the following API call to request a redirect URL where the user can authenticate with the API provider. Replace {keyOrId} with the connector key, googledrive.

GET /elements/{keyOrId}/oauth/url?apiKey=<api_key>&apiSecret=<api_secret>&callbackUrl=<url>

Query Parameters

Example cURL

curl -X GET
-H 'Content-Type: application/json'
'https://api.openconnectors.us2.ext.hana.ondemand.com/elements/api-v2/elements/googledrive/oauth/url?apiKey=fake_api_key&apiSecret=fake_api_secret&callbackUrl=https://www.mycoolapp.com/auth'

Example Response

Use the oauthUrl in the response to allow users to authenticate with the vendor.

{
  "oauthUrl": "https://accounts.google.com/o/oauth2/auth?access_type=offline&approval_prompt=force&client_id=fake_api_key&redirect_uri=https://www.mycoolapp.com/auth&response_type=code&scope=https://www.googleapis.com/auth/drive&state=googledrive",
  "element": "googledrive"
}

Authenticating Users and Receiving the Authorization Grant Code

Provide the response from the previous step to the users. After they authenticate, Google Drive provides the following information in the response:

• code
• state

Authenticating the Connector Instance

Use the /instances endpoint to authenticate with Google Drive and create a connector instance. If you are configuring events, see the Events section.

To create a connector instance:

1. Construct a JSON body as shown below (see Parameters):

   {
     "element": {
       "key": "googledrive"
     },
     "configuration": {
       "oauth.api.secret": "84_-gkk6tCz5MkDVceY542Ql",
       "filter.response.nulls": "true",
       "event.poller.refresh_interval": "5",
       "oauth.callback.url": "https://auth.cloudelements.io/oauth",
       "event.vendor.type": "polling",
       "oauth.scope": "https://www.googleapis.com/auth/drive",
       "googledrive.include.teamdrives": "false",
       "oauth.api.key": "561333405226-s822jr4f8tslijuha0kca4gkog1t0i8h.apps.googleusercontent.com",
       "revoke.access.token": "true",
       "event.notification.enabled": "false",
       "oauth.user.refresh_time": null,
       "oauth.user.refresh_token": null
     },
     "name": "googleone",
     "eventsEnabled": null,
     "providerData": {
       "state": "googledrive",
       "code": "4/rQHYkrLrJ-Bvbsh2BHyKuIVU7ygxlb84HWZPytfHNWh6KQbC8uyAaCDfnLHPHmAfPlA1UE02Bf-wj3MBhP1pBws",
       "scope": "https://www.googleapis.com/auth/drive",
       "debug": false,
       "secret": "84_-gkk6tCz5MkDVceY542Ql"
     }
   }

2. Call the following, including the JSON body you constructed in the previous step:

   POST /instances
   

   Note: Make sure that you include the User and Organization keys in the header. For more information, see Authorization Headers, Organization Secret, and User Secret.

3. Locate the token and id in the response and save them for all future requests using the connector instance.

Example cURL

curl -X POST \
  https://api.openconnectors.us2.ext.hana.ondemand.com/elements/api-v2/instances \
  -H 'authorization: User <USER_SECRET>, Organization <ORGANIZATION_SECRET>' \
  -H 'content-type: application/json' \
  -d '{
  "name": "GoogleDrive_Instance",
  "element": {
    "key": "googledrive"
  },
  "providerData": {
    "code": "xoz8AFqScK2ngM04kSSM"
  },
  "configuration": {
    "oauth.callback.url": "https://www.mycoolapp.com/auth",
    "oauth.api.key": "fake_api_key",
    "oauth.api.secret": "fake_api_secret",
    "document.root.folder.name": "Documents"
  },
  "tags": [
    "For Docs"
  ]
}'

Parameters

API parameters not shown in SAP Open Connectors are in code formatting.

Example Response

{
  "id": 427188,
  "name": "GoogleDrive_Instance",
  "createdDate": "2017-06-06T18:54:51Z",
  "token": "7/1+qpTUzoU6OlqvIeynPKJKCztvKYTlx1AD+au3bfk=",
  "element": {
    "id": 21,
    "name": "Google Drive",
    "key": "googledrive",
    "description": "Add a Google Drive Instance to connect your existing Google Drive account to the Documents Hub, allowing you to manage files and folders. You will need your Google Drive account information to add an instance.",
    "image": "elements/provider_googledrive.png",
    "active": true,
    "deleted": false,
    "typeOauth": true,
    "signupURL": "https://drive.google.com",
    "transformationsEnabled": false,
    "bulkDownloadEnabled": false,
    "bulkUploadEnabled": false,
    "cloneable": false,
    "extendable": false,
    "beta": false,
    "authentication": {
      "type": "oauth2"
    },
    "hub": "documents",
    "private": false
  },
  "elementId": 21,
  "disabled": false,
  "eventsEnabled": false
}