Comment by danfritz
20 hours ago
Always let your db generate uuids. On postgres this is easy since v18 it supports uuid v7!
There is no need to set uuids through javascript or node imo
20 hours ago
Always let your db generate uuids. On postgres this is easy since v18 it supports uuid v7!
There is no need to set uuids through javascript or node imo
There's plenty of reasons to set a unique identifier before database save, or to want a unique identifier that doesn't have a 1-to-1 relationship with your object.
For example, in the idempotent kafka consumer pattern we set a unique ID in the header of every kafka message at the time of message publishing. We then have our consumers do a quick check of the ID against their data store to see if they have processed the message before or not. This way there is no impact if a consumer sees the same message twice. This allows us more flexibility during rebalancing events or replaying old offsets.
Not every application uses a DB you know, there are other reasons to use a UUID