how to turn a hapi auth plugin to be optional - node.js

Question

I'd like to use the hapi jwt token auth plugin https://github.com/ryanfitz/hapi-auth-jwt but make a route with optional authentication. How can I prevent the route from returning a 401 and instead continue executing with a null request.auth.credentials.
I'd like all the other routes that are using it to keep the same implementation of returning a 401 on non authenticated requests.
server.register(require('hapi-auth-jwt'), function (error) {
server.auth.strategy('token', 'jwt', {
key: privateKey,
validateFunc: validate
});
//make this one allow anonymous while also reading logged in credentials
server.route({
method: 'GET',
path: '/',
config: {
auth: 'token'
}
});
server.route({
method: 'GET',
path: '/mystuff',
config: {
auth: 'token'
}
});
});
server.start();

Answer 1

You can set it to optional in route configuration:
server.route({
method: 'GET',
path: '/',
config: {
auth: {
strategy: 'token',
mode: 'optional'
}
}
});
Mode can be true, false, required, optional, or try. See the authentication tutorial for more details.

Answer 2

Besides the optional route's auth configuration, you can also use try.
server.route({
method: 'GET',
path: '/',
config: {
auth: {
strategy: 'token',
mode: 'try'
}
}
})
The difference between those two
optional: no authentication credentials needed, but if provided they need to be valid
try: if the user provides invalid authentication credentials they still get accepted and users will proceed to the route handler