reference/src/main/resources/jcr_root/apps/reference/components/forms/form/edit.json

 {
    "jcr:primaryType": "nt:unstructured",
    "sling:resourceType": "sling-cms/components/editor/slingform",
    "button": "Save",
    "fields": {
        "jcr:primaryType": "nt:unstructured",
        "sling:resourceType": "sling-cms/components/general/container",
        "formId": {
            "jcr:primaryType": "nt:unstructured",
            "sling:resourceType": "sling-cms/components/editor/fields/text",
            "label": "Form ID",
            "name": "formId"
        },
        "submitText": {
            "jcr:primaryType": "nt:unstructured",
            "sling:resourceType": "sling-cms/components/editor/fields/text",
            "defaultValue": "Submit",
            "label": "Submit Text",
            "name": "submitText",
            "required": true
        },
        "successPage": {
            "jcr:primaryType": "nt:unstructured",
            "sling:resourceType": "sling-cms/components/editor/fields/path",
            "label": "Success Page",
            "name": "successPage"
        },
        "successAction": {
            "jcr:primaryType": "nt:unstructured",
            "sling:resourceType": "sling-cms/components/editor/fields/select",
            "label": "Success Action",
            "name": "successAction",
            "options": {
                "redirect": {
                    "jcr:primaryType": "nt:unstructured",
                    "label": "Redirect",
                    "value": "redirect"
                },
                "forward": {
                    "jcr:primaryType": "nt:unstructured",
                    "label": "Forward",
                    "value": "forward"
                }
            }
        },
        "successMessage": {
            "jcr:primaryType": "nt:unstructured",
            "sling:resourceType": "sling-cms/components/editor/fields/richtext",
            "label": "Success Message",
            "name": "successMessage"
        },
        "actionsErrorMessage": {
            "jcr:primaryType": "nt:unstructured",
            "sling:resourceType": "sling-cms/components/editor/fields/richtext",
            "label": "Actions Error Message",
            "name": "actionsErrorMessage"
        },
        "fieldsErrorMessage": {
            "jcr:primaryType": "nt:unstructured",
            "sling:resourceType": "sling-cms/components/editor/fields/richtext",
            "label": "Fields Error Message",
            "name": "fieldsErrorMessage"
        }
    }
}