服务端调用小程序http api 错误，hint: [qJgbH.wgE-PBg1lA]？

服务端调用小程序http api 发现过滤的语句不能使用变量，比如

let data = {key: '2020-03-21'};

return rp({
            url: `https://api.weixin.qq.com/tcb/databasequery?access_token=${token}`,
            method: "POST",
            json: true,
            headers: {
                "content-type": "application/json",
            },
            body: {
                "env":"any-id",
                "query": `db.collection(\"all_houses\").where(${data}).get()`
            }
        }).then((res)=>{
            console.log("res: %O", res);
            return res;
        }).catch(err=>{
            console.log("err: %O", err);
        })

如果不使用变量就不会有错，比如这样

return rp({
            url: `https://api.weixin.qq.com/tcb/databasequery?access_token=${token}`,
            method: "POST",
            json: true,
            headers: {
                "content-type": "application/json",
            },
            body: {
                "env":"any-id",
                "query": `db.collection(\"all_houses\").where({key: '2020-03-12'}).get()`
            }
        }).then((res)=>{
            console.log("res: %O", res);
            return res;
        }).catch(err=>{
            console.log("err: %O", err);
        })