KSQLDB asp.net core

Question

I don't see any article/blog written around KSQL DB for asp.net core and there are less/no documentation available. It would be appreciated if you could help me with the code/article/blog on kSQLDB with asp.net core

Answer 1

You can use ksqlDB.RestApi.Client package in .NET / C#.

Install-Package ksqlDB.RestApi.Client

There is an AspNet Blazor sample in tomasfabian\ksqlDB.RestApi.Client-DotNet GitHub repository. It demonstrates how to use ksqldb streams, tables and monitor push notifications from SQL Server with a connector. You can react to these topics (streams/tables) with a Kafka consumer or ksqldb client.

Clone the repository:

https://github.com/tomasfabian/ksqlDB.RestApi.Client-DotNet.git;

Open InsideOut.sln in Visual Studio 2019 and set docker-compose as startup project.

This console app contains LINQ to ksqldb query examples. There are also some LinqPad samples available.

You should also check the Readme.

I think that this could be a good starting point for you.

Answer 2

ksqlDB is written in Java, thus cannot be "hosted" by ASP.NET infrastructure. Similarly, to my knowledge, there is no Kafka Streams equivalent library for .NET.

ksqlDB offers a REST API if you needed to interact with it from other languages