# REST JSON

**GoAffPro** provides you with the option to allow the app to call functions on your API.

To call functions on your API, go to the **SDK Settings** section in the **Settings** tab of the GoAffPro admin panel.

<figure><img src="/files/cNVJCjIOKnS5YFJJWMWx" alt=""><figcaption><p>Settings > SDK Settings</p></figcaption></figure>

Here, go to the REST JSON section.

<figure><img src="/files/XaOUZCKhPeOn7uCOWfyY" alt=""><figcaption><p>REST JSON</p></figcaption></figure>

Now, click on **Edit JSON Spec**.

<figure><img src="/files/n1yg1h30i5Un5W6zMOKm" alt=""><figcaption><p>Click on Edit JSON Spec</p></figcaption></figure>

You can edit the REST JSON Spec to call functions of your API.

<figure><img src="/files/sVrK9GG5lNdIi5s4BTO7" alt=""><figcaption></figcaption></figure>


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