JWT vs Sessions vs OAuth: Which to Use for SaaS Auth
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You're starting a new SaaS. You need auth. You google "JWT vs sessions" and thirty minutes later you're more confused than when you started — half the results say JWTs are the future of stateless auth, the other half say they're a footgun. Someone in a forum says you need OAuth. Someone else says OAuth is overkill. Here's what I've learned building auth for several production systems: the right answer comes down to two questions — how many different client types need to authenticate, and how qu