Replicate data from Mongo and Mssql to TiDb

Hello everyone.

Is there any way to do realtime data inserts to tidb with grpc?

I want to sync MongoDB with TiDb using mongoshake or using Kafka from mssql ( takes oplog / event and pushes to grpc ).

The end goal is to take advantage of the existing MySQL based + olap features of Tiflash

I am afraid no, you can extract data from MongoDB and MSSQL then transform the format to MySQL and use mysql-protocol compatible client to insert data to TiDB.