## 具备条件才请求

```json
{
    "body": [{
        "type": "container",
        "model": "OUTER_CONTAINER",
        "data": {
            "outer": "1"
        },
        "children": [
            {
                "type": "input",
                "name": "outer"
            },
            {
                "type": "container",
                "model": "INNER_MODAL",
                "props": {
                    "outer": "#ES{$parent.outer}"
                },
                "dataProvider": [{
                    "mode": "ajax",
                    "namespace": "request",
                    "config": {
                        "url": "/api/mock/dateStartTime",
                        "method": "GET"
                    },
                    "requiredParams": ["outer"]
                }],
                "children": [{
                    "type": "text",
                    "text": "inner"
                }]
            }
        ]
    }]
}
```