问题
After over a year of development, I have a pretty well developed site. Now I'm going to open it up for a public beta but I need to clear my Firestore of all it's data (it's all test data). Is there a simple way to do this or do I have to delete every single entry by hand? (There are over 1000 entries). The only realistic option I can think of at the moment is to switch Firebase projects to a new one, which is not something I want to do.
Solution: After reaching out to Firebase support, I was given the following CLI command to run, which did the trick:
// THIS WILL PROMPT CONFIRMATION AND WILL USE ACTIVE PROJECT
firebase firestore:delete --all-collections
// !!! WARNING !!! THIS WILL NOT PROMPT CONFIRMATION AND WILL USE ACTIVE PROJECT
firebase firestore:delete --all-collections -y
Remember to use caution, as this will wipe your entire Firestore database.
来源：https://stackoverflow.com/questions/53419891/clear-firestore-database-of-all-data