verifyJwt function
Verify if the token is valid and return its related JWT
Implementation
dynamic verifyJwt(String token, String secret) {
try {
final jwt = JWT.verify(token, SecretKey(secret));
return jwt;
} on JWTExpiredException catch (err) {
print(err);
} on JWTException catch (err) {
print(err);
}
}