Flutter Firebase按ID数组获取文档 [英] Flutter Firebase get documents by array of IDs

问题描述

如何使用ID列表从集合中查询文档?假设我有以下内容:

How would I get a Query of documents from a collection using a list of IDs? Let's says I have the following:

List<String> someList = ['abc123', 'def456', 'hij789']; // Need to query for these documentIDs

我通常会执行以下操作.但这显然不起作用，因为我需要查询documentID.

I would normally do the following. But this obviously won't work since I need to query the documentIDs.

Query query = Firestore.instance
        .collection(APIPath.products())
        .where('someField', whereIn: someList);

推荐答案

尝试使用请注意，列表中最多只能包含10个项目，这实际上可能比仅通过 get()单独请求每个文档要慢.

Note that you are limited to 10 items in the list, and this might actually be slower than just requesting each document individually with get().

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