hello, is there any tutorial connecting pinot with mongodb ?

there isn't one but the right way to do that would be MongoDB -> Kafka -> Pinot https://www.mongodb.com/docs/kafka-connector/current/source-connector/fundamentals/change-streams/

thank you will look into that.

In case you are looking for CDC, then there’s this article: https://medium.com/apache-pinot-developer-blog/change-data-analysis-with-debezium-and-apache-pinot-b4093dc178a7

so i was thinking to just use MongoDB Kafka Connector and send mongo data to kafka topics and get those in pinot.. do i need Debezium ?

No.. but we might need a decoder to parse the mongo db change log event in kafka.. if you can share sample events, we can write a decoder quickly or you can contribute it to Pinot

in kafka connector i’m using

key.converter: org.apache.kafka.connect.json.JsonConverter