See how JWT authentication works from creating a token to verifying it on protected requests.
A typical JWT authentication flow starts when a user successfully logs in. The server creates a signed token containing the required claims and sends it to the client. The client then sends that token with later requests to prove its authenticated identity.
When a protected request arrives, the server extracts the token, verifies its signature and important claims, checks whether it is still valid, and then allows the request to continue. The exact implementation depends on where the token is stored, how it is transported, and how the application handles expiration and refresh.
What you'll walk away knowing