Webhooks

NDI Bridge Service supports change subscriptions which allow you to observe changes to any value instead of polling. To register a webhook, append the following path to the target API value where the callback query parameter is set to the URL you wish to receive POST requests from:

/subscribe?callback=https://myurl

For instance, if you wanted to subscribe to changes on the host port value you would do:

api/host/port/subscribe?callback=https://myurl

If a subscription is successful, you will revive a GUID as a response. This GUID is the handle for your subscription. If you want to unsubscribe from any change subscription you call the following URL (do not appended to the target API path) with the id query parameter being set to the GUID you received from the subscribe response:

http://localhost:8080/api/unsubscribe?id=

Change subscriptions are POSTed to the callback URL as JSON with key being the target API path (like host/port ) and value being the current value or ”Value changed.” for security sensitive values.

Active webhooks can be seen under the Webhooks section of the web interface.

Figure 14: Command line interface

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