Using shortid on many clients.

[hifall]

We have an SaaS app where many (potentially thousands) of client SPA's (Single Page Application) issue requests to the server.

In order to filter duplicate requests:
1 each request hits the server with an ID;
2 each time a request comes in, the server checks the request's ID -- if processed, simply ignore; otherwise proceed as usual;

Is shortid good for this purpose? How likely 2 or more SPA instances generate the same ID using shortid?

Thanks!

[yentsun]

@hifall for request id generation you can try generators with random part as server instance id and predictable (increment) part as request number:

• hyperid (ids like ODI2YmQ3ZDktNzM4Ni00ZTA0LWE/42)
• trid (prettier ids like pref.GtxXQ.42, with customizable prefix and length)

This way you are safe from request id collisions.

[hifall]

Thanks @yentsun, will check the links out shortly!

[ai]

Just use Nano ID. It is less predictable and has longer ID.