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);

save a lot of debugging also for me. Trying to set a CustomConversions on multiple database repositories. the interesting part is:

    m_ = new MongoTemplate(client, db);
    Converter[] ca = new Converter[]{new ObCriteria.TypeWriteConverter(), new ObCriteria.TypeReadConverter()};
    CustomConversions cc = new CustomConversions(Arrays.asList(ca));
    MappingMongoConverter mmc = (MappingMongoConverter)m_.getConverter();
    mmc.setCustomConversions(cc);
    mmc.afterPropertiesSet(); 

in Mongo Template override. My Template override looks like the following:

@Override
@Bean(name = "mongoCTGTEmplate")
public MongoTemplate mongoTemplate() throws Exception {
    MongoTemplate m_ = new MongoTemplate(this.mongo(), databaseCTG);

    MappingMongoConverter mmc = (MappingMongoConverter) m_.getConverter();
    mmc.setCustomConversions(this.customConversions());
    mmc.afterPropertiesSet();
    return m_;
}

I spent a lot of time on the web looking for the solution, and find it here! thanks ;)

After much searching, I found this example to be more elegant: https://github.com/eugenp/tutorials/blob/master/spring-data-mongodb/src/main/java/org/baeldung/config/MongoConfig.java

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