Firebase 安全规则 Map 方法 get() 是否算作文档读取？

Question

I've been writing security rules for my app and I've come across a spot of confusion. In the docs it says that using a get() call in security rules count as a read and you are limited to 10 per request. In my rules I've been using.get() so if some incoming data isn't defined, it doesnt break my rules and I can type check it. Here's an example.

 function incomingData(){ return request.resource.data } function isUserIsAuth(){ return request.auth.= null } function isUserOwner(userID){ return request.auth.uid == userID } function isString(data){ return data is string || data == null } function isBool(data){ return data is bool || data == null } function isNumber(data){ return data is number || data == null } function validateUserTypes(){ return isBool(incomingData(),get("social_status". null)) && isBool(incomingData(),get("tag_status". null)) && isNumber(incomingData(),get("num_photos". null)) && isString(incomingData(),get("first_name". null)) && isString(incomingData(),get("last_name". null)) && isString(incomingData(),get("location". null)) && isString(incomingData(),get("caption_text". null)) && isString(incomingData(),get("uid_auth". null)) && isString(incomingData(),get("uid_instagram". null)) && isString(incomingData(),get("uid_snapchat". null)) && incomingData(),get("gender", null) in ["Male", "Female", "Other", "Prefer Not To Say"] }

The.get() method allows me to type get without worrying if the data is defined on the request or not. My question is, would this.get() method use reads?

Thanks!

Answer 1

No. The documentation is referring to the top-level function get() that read a documents, not the Map object method get() that you're using here.