Best way to add custom converters to spring-data-mongodb?

Demo.java

    MongoTemplate mongo = ...;

    List<Converter> converters = new ArrayList<Converter>();
    converters.add(new Converter<DBObject, Participant>() {
      public Participant convert(DBObject s) {
        throw new UnsupportedOperationException("Not supported yet 1.");
      }
    });
    
    converters.add(new Converter<Participant, DBObject>() {
      public DBObject convert(Participant s) {
        throw new UnsupportedOperationException("Not supported yet 2.");
      }
    });

    
    CustomConversions cc = new CustomConversions(converters);
    
    ((MappingMongoConverter)mongo.getConverter()).setCustomConversions(cc);

Since the link from @mpereira-dev isn't up-to-date anymore here are some new ones:

https://github.com/eugenp/tutorials/blob/master/persistence-modules/spring-data-mongodb/src/main/java/com/baeldung/config/MongoConfig.java

https://github.com/eugenp/tutorials/blob/master/persistence-modules/spring-data-mongodb/src/main/resources/mongoConfig.xml