handleOAuthRedirectRequest

Hi,

how to use the function below?

function handleOAuthRedirectRequest(request, response) {
var oauthGrantCode = url.parse(request.url, true).query.code

    patreonOAuthClient
        .getTokens(oauthGrantCode, redirectURL)
        .then(function(tokensResponse) {

            console.log('one')
            var patreonAPIClient = patreonAPI(tokensResponse.access_token)
            return patreonAPIClient('/current_user')
        })
        .then(function(result) {
            console.log('two')
            var store = result.store
            // store is a [JsonApiDataStore](https://github.com/beauby/jsonapi-datastore)
            // You can also ask for result.rawJson if you'd like to work with unparsed data
            response.end(store.findAll('user').map(user => user.serialize()))
        })
        .catch(function(err) {
            console.error('error!', err)
            response.end(err)
        })
}