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SAP Open Connectors supports events via polling or webhooks depending on the API provider. For more information about our Events framework, see Events Overview.

Supported Events and Resources

SAP Open Connectors supports webhook events for GitHub. After receiving an event, SAP Open Connectors standardizes the payload and sends an event to the configured callback URL of your authenticated instance. For more information about webhooks at GitHub including the currently available webhooks, see their webhooks documentation.

Configure Webhooks Through the UI

To configure webhooks through the UI, follow the same steps to authenticate a connector instance, and then turn on events. For more information, see Authenticate an Connector Instance with Events (UI) or the connector-specific authentication topic.

Configure Webhooks Through API

Use the /instances endpoint to authenticate with GitHub and create a connector instance with webhooks enabled.

To authenticate a connector instance with webhooks:

1. Get an authorization grant code by completing the steps in Getting a redirect URL and Authenticating users and receiving the authorization grant code.

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

   {
     "element": {
       "key": "github"
     },
     "providerData": {
       "code": "<AUTHORIZATION_GRANT_CODE>"
     },
     "configuration": {
       "oauth.api.key": "<GitHub app Client ID>",
       "oauth.api.secret": "<GitHub app Client Secret>",
       "oauth.callback.url": "<GitHub app Authorization callback URL >",
       "github.organization": "<github.organization>",
       "github.repository": "<github.repository>",
       "event.notification.enabled": true,
       "event.vendor.type": "webhooks",
       "event.notification.callback.url": "<CALLBACK_URL>",
       "event.notification.signature.key": "<OPTIONAL_SIGNATURE_KEY>"
     },
     "tags": [
       "<Add_Your_Tag>"
     ],
     "name": "<INSTANCE_NAME>"
   }
   
   

3. 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.

4. 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 '{
  "element": {
    "key": "github"
  },
  "providerData": {
    "code": "xoz8AFqScK2ngM04kSSM"
  },
  "configuration": {
    "oauth.api.key": "Rand0MAP1-key",
    "oauth.api.secret": "fak3AP1-s3Cr3t",
    "oauth.callback.url": "https://mycoolapp.com",
    "github.organization": "myOrg",
    "github.repository": "myRepo"
    "event.notification.enabled": true,
    "event.vendor.type": "webhooks",
    "event.notification.callback.url": "https://mycoolapp.com/events",
    "event.notification.signature.key": "xxxxxxxxxxxxxxxxxxxxxxxxx"
  },
  "tags": [
    "Docs"
  ],
  "name": "API Instance"
}'

Parameters

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

Configure Webhooks at GitHub

After you authenticate a connector instance with webhooks, you must set up webhooks at GitHub. Take a look at their documentation for complete details.

1. Retrieve the Webhook URL from the connector instance.
   • Navigate to the connector instance, click Edit on the connector instance card, and then copy the Webhook URL.
   • Make a GET/instances/{id}/events request and look for encodedid in the response. Append that to theevent.notification.callback.url you used when authenticating the connector instance. This is the Webhook URL.
2. Go to your repository in Github, and then click the Settings tab.
3. On the left, click Webhooks.
4. Click Add webhook.
5. In Payload URL, enter the Webhook URL you identified in step 1.
6. Change the Content Type to application/json.
7. Complete the form as needed for your use case, and then click Add Webhook.