# Webhooks

Webhooks are an easy way to automatically communicate one app with another.\
In our application Webhooks are configured in menu [Integrations -> Webhooks.](https://app.pushpushgo.com/integrations/webhooks)

![](https://2886427578-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M_L2jrbLGTIbcnHMUrm%2F-MiaukGEJmEJA5tftUyR%2F-MiauxAKGrhq5Je43a-Y%2FScreenshot%20from%202021-09-02%2016-30-03.png?alt=media\&token=2137fdbe-2654-475c-9bab-a72ba03ab51b)

Specify what `Event` should trigger notification and define an api endpoint `Webhook Url` where we should send the request.

Webhooks are sent as POST requests, with body of type `IBody`

| IBody property name | type     | description                      |
| ------------------- | -------- | -------------------------------- |
| `projectId`         | `string` | your project identifier          |
| `customId`          | `string` | subscriber's customId if defined |
| `ppgId`             | `string` | subscriber identifier            |

{% hint style="info" %}
For every request we set an `X-PPG-Signature` header. Its value is a result of following operation:

\
We take the full JSON body and sign it using `HMAC-SHA1` with your `ProjectId` as the key.
{% endhint %}


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