How to call apex class from force.com sites

Question

I have rest resource class which i am calling from force.com site..

Below is my site url

http://partial-sms.cs31.force.com/webhook

@RestResource(urlMapping='/webhook/*')

global  without sharing class smsSiteAPI {
   @HttpGet
    global static ID getUrlParameters(){

        Id urlId = apexpages.currentpage().getparameters().get('id');

        system.debug('Url id '+urlId);

        return urlID;
    }

}

And below is the Active Site Home Page

<apex:page controller="smsSiteAPI">
    <apex:outputText value="{!UrlParameters}" />
</apex:page>

when i hit url "https://partial-sms.cs31.force.com/webhook?id=1234" it gives error: "Authorization Required You must first log in or register before accessing this page. If you have forgotten your password, click Forgot Password to reset it."

Answer 1

You need to grant the APEX class access to the site profile. Please find below format for calling the API from the site.

https://<site-url>/services/apexrest/<your-web-service-name>

If the class is part of the managed package, then you need to include the package namespace as well.

https://<site-url>/services/apexrest/<namespace>/<your-web-service-name>

With the above-mentioned format it working, see!