error handling for jwt.verify and JSON.parse

[eliasmalik]

jwt.verify

If you read the documentation for the verify method of the jwt package, you will see that if the secret is wrong, the method will throw an error. That means you must protect your code with a catch block unless you want your server to crash.

Nerd-s-flashCards/src/handlers.js

Line 140 in 8febfae

var tokenState = jwt.verify(cookies.token, secret);

JSON.parse

JSON.parse will also throw if its input is not a valid JSON string. You should get in the habit of protecting calls to JSON.parse with a catch block too.