Can we have Email Id as key in Firebase database? [duplicate]

Answer 1

i faced the same constraints and i replaced '.' with '__dot__' to make email id as a key.

Answer 2

Replacing one character with another may lead to confusion and may cause critical issues in future.

For the instance, replacing . with _DOT_ may work for now. Say in future you want to get back the original email for some verification; [no big deal] I can replace _DOT_ back with .. This fails if someone has the email actual._DOT_@actualdot.com

The solution is to use email hash. I prefer md5 at the moment.

So the structure should be:

{
    "<md5 hash of 'joel@dept.com'>": { 
            "EID":"0153" 
     }, 
    "<md5 hash of 'Stan@dept.com'>": { 
             "EID":"0163" 
    }
 }

Answer 3

Firebase does not support characters like .[]{} hence if you want to produce in using the email as the primary key then you will have to replace the .replace(".",",")