Imports github.com/olivere/elastic go.mongodb.org/mongo-driver/bson go.mongodb.org/mongo-driver/bson/primitive go.mongodb.org/mongo-driver/mongo go.mongodb.org/mongo-driver/mongo/options Standard library imports context encoding/json fmt io/ioutil mongo-sync-elastic/log mongo-sync-elastic/service mongo-sync-elastic/utils os reflect runtime strings sync time