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Webhooks

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A webhook is an endpoint on your server that receives requests from Labelbox. The purpose of a webhook event is to notify your application whenever something interesting happens in one of your Labelbox projects. Rather than periodically polling the Labelbox API to check for any updates in Labelbox, setting up webhooks means your application will receive updates automatically.

For security purposes, Labelbox includes a signature in each webhook event it sends to your application endpoint. Setting up your webhooks configuration to verify the signature in each webhook message allows you to verify that the events were sent by Labelbox. See an example here.

Any traffic coming out of Labelbox will be coming from this IP address: 35.223.142.181. Make sure this IP address is whitelisted when you are setting up your webhooks.


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