# 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="https://1200686697-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LdPzLtyP46oY7cyXnkw%2Fuploads%2FE6NME0cENiVm4K0C67FP%2Fimage.png?alt=media&#x26;token=f1630406-a2c3-4af6-a005-83079d7d0064" alt=""><figcaption><p>Settings > SDK Settings</p></figcaption></figure>

Here, go to the REST JSON section.

<figure><img src="https://1200686697-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LdPzLtyP46oY7cyXnkw%2Fuploads%2FDHBgj2IXPpPPo7IX2XdN%2Fimage.png?alt=media&#x26;token=d269cbf4-b631-4ae1-937f-5006ca0dbe9f" alt=""><figcaption><p>REST JSON</p></figcaption></figure>

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

<figure><img src="https://1200686697-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LdPzLtyP46oY7cyXnkw%2Fuploads%2FG1j4h7plbKopUEUFYq2f%2FScreenshot%202023-11-27%20154346.png?alt=media&#x26;token=7588c42c-e5e1-482b-87f7-1424b3a8913e" 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="https://1200686697-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LdPzLtyP46oY7cyXnkw%2Fuploads%2Fq8JVybeHGj7oGSanry1w%2FScreenshot%202023-11-27%20154438.png?alt=media&#x26;token=57ca3971-feb5-4786-958a-8def1703d6f4" alt=""><figcaption></figcaption></figure>