# Scripted REST API example: creating a new Scripted REST endpoint in ServiceNow to return a GUID via http GET
```typescript
import { RestApi, Acl } from '@servicenow/sdk/core'

RestApi({
    $id: Now.ID['get_guid_rest_api'],
    name: 'Get GUID',
    serviceId: 'custom_api',
    consumes: 'application/json,application/xml,text/xml',
	produces: 'application/json,application/xml,text/xml',
    routes: [
        {
            $id: Now.ID['route1'],
            path: '/api/sn_aes_notificatio/notifications/guid',
            script: `(function process(request, response) {
    try {
        // Generate a new sys_id (GUID)
        var newGuid = gs.generateGUID();
        
        // Set response content type
        response.setContentType('application/json');
        
        // Set response status
        response.setStatus(200);
        
        // Return the new GUID in the response body
        return {
            "notificationGuid": newGuid,
            "timestamp": new GlideDateTime().getDisplayValue()
        };
    } catch (e) {
        response.setStatus(500);
        return {
            "error": e.message,
            "status": "error"
        };
    }
})(request, response);`,
            parameters: [],
            headers: [],
			authorization: true,
			authentication: true,
            enforceAcl: [restAcl],
            version: 1,
        },
    ],
    enforceAcl: [restAcl],
    versions: [
        {
            $id: Now.ID['v1'],
            version: 1,
        },
    ],
})

const devRole = Role({ name: 'dev' });
const adminRole = Role({ name: 'admin', containsRoles: [devRole] });

// The ACL referenced is defined using the ACL object:
const restAcl = Acl({
    $id: Now.ID['get_guid_rest_api_acl'],
    name: 'Get GUID ACL',
    type: 'rest_endpoint',
    script: ``,
    active: true,
    adminOverrides: false,
    operations: ['execute'],
	roles: [adminRole, devRole],
})
```