没有内置的API可以获取具有特定声明的所有用户的列表.

There is no built-in API to get a list of all users that have a specific claim.

有是个API，用于获取 Admin SDK中所有用户的列表.因此，您可以使用它，然后过滤具有您要查找的声明的用户.

There is an API to get a list of all users in the Admin SDK. So you could use that and then filter the users that have the claim you're looking for.

但是这种表现不会很出色.因此，如果列出具有特定声明的所有用户是您应用的常见用例，则您需要重新考虑对使用额外位置存储数据的担忧.复制数据以实现(良好执行)用例在NoSQL中非常普遍.

But performance of this will not be spectacular. So if listing all users with a specific claim is a common use-case for your app, you'll want to reconsider your concern about using an additional place to store the data. Duplicating data to achieve (well performing) use-cases is quite common in NoSQL.