[keeptrying]

Nothing gives you confidence in your system than testing on high variance sample of last 4 months of production traffic.

Especially for rewrites or code refactorings.

I've built this system at many companies myself. Never thought of doing this as a service for others.

[roflyear]

Do you issue new sessions and modify the requests?

[vedant_ag]

Modify requests - yes!

New sessions - What is the use case for it? Its definitely possible.

[roflyear]

Don't your sessions expire? How do you authenticate to the endpoints?

[vedant_ag]

So true!

> I've built this system at many companies myself.

Interesting! Would I know any of those companies/products?

[zlatan99]

Amazon has similar systems operating since last 10 years.