This tutorial teaches how to set up a time series database (TSDB) in a C# application using InfluxDB. TSDBs are ideal for handling large data sets focused on time stamps or time-based queries, and InfluxDB is the most popular choice. The article guides users through installing InfluxDB using Docker, creating a .NET console application, and writing/reading data to/from InfluxDB. It also demonstrates how to use Flux query language for more complex queries against stored data.