flutter请求报错

问题讨论数据存储

13788949864

21-12-22

{"code":102,"error":"Invalid query: $nin needs an array."}
这个错误的原因是什么呢？为什么官网错误码里面没有

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21年12月22日
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21年12月22日
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13788949864

21-12-22

请求文本是：
https://api.yoyochat.cn/1.1/classes/user_information?skip=0&limit=10&where=%7B%22%24and%22%3A%5B%7B%22location%22%3A%7B%22%24nearSphere%22%3A%7B%22__type%22%3A%22GeoPoint%22%2C%22latitude%22%3A31.239533%2C%22longitude%22%3A121.478408%7D%7D%7D%2C%7B%22user%22%3A%7B%22%24nin%22%3Anull%7D%7D%2C%7B%22interest%22%3A%7B%22%24in%22%3A%5B%22%E8%8B%B1%E9%9B%84%E8%81%94%E7%9B%9F%22%2C%22%E5%89%91%E7%BD%913%22%2C%22%E7%8E%8B%E8%80%85%E8%8D%A3%E8%80%80%22%5D%7D%7D%2C%7B%22user%22%3A%7B%22%24ne%22%3A%7B%22__type%22%3A%22Pointer%22%2C%22className%22%3A%22_User%22%2C%22objectId%22%3A%2261652517b0fc702a29fb0709%22%7D%7D%7D%5D%7D

zyu

21-12-22

https://api.yoyochat.cn/1.1/classes/user_information?skip=0&limit=10&where={"$and":[{"location":{"$nearSphere":{"__type":"GeoPoint","latitude":31.239533,"longitude":121.478408}}},{"user":{"$nin":null}},{"interest":{"$in":["英雄联盟","剑网3","王者荣耀"]}},{"user":{"$ne":{"__type":"Pointer","className":"_User","objectId":"61652517b0fc702a29fb0709"}}}]}
解码看到了 "$nin":null 条件，如果不需要这个条件，可以不传