fs.readFile("person.json")
    .then(function(e, personJson) {
        var person = JSON.parse(personJson);
        return myDB.query("lastname", person.name);
    })
    .then(function(matched) {
        return msgQueue.push(JSON.stringify(matchesLastname));
    })
    .then(function(id) {
        log.info("Message sent to queue: " + id);
    });