Adding Prefix to Firestore Default Document Id

Question

Regarding Firebase document Ids, I am trying to set a prefix before the default Firebase docId generation. For example, if the default document Id generated is 23492drf94fl , then I would write it as, somePrefix:23492drf94fl .

Currently, I understand that there are two ways to do this: one with generating your own custom UUID on the client side with custom prefix, and another is to rewrite the document Id after initially writing it in Firestore.

Is there any shorthand method or function I could use in React (Node.js) to just use the default Firestore docId generation w/ a specified prefix?

Thanks in advance.

Answer 1

There isn't a shorter/easier method or function that would allow you to set a prefix to the auto-generated id. You will need to do it manually as you mentioned it and even doing this manually, it's not a very good option, as you will be impacting more of your application and, of course, spending part of your quotas on each read and write every time a new doc is created.

However, if you really would like or need, to have the document id with a prefix, I would recommend you to use a second field, where you would copy the value of the document id and then, add the prefix. This way, you won't affect the default field created - which can impact the uniform distribution of it, since it's automatically created - and you would still be able to have a MATH:235E23 or SCI:2309F4 your database, that you can use as a default field for you.

Besides that, in case you feel this could be a good improvement to the system, please, consider raising a Feature Request in Google's Issue Tracker , so they can check about the possibility of implementing it in the future.

Let me know if the information helped you!