This tutorial provides a step-by-step guide on how to stream data into InfluxDB v2 using Telegraf with two different plugins: the Exec Plugin and the Tail Plugin. The tutorial uses the Alpha Vantage Stock and Crypto API to retrieve intraday time series data, which is then written to InfluxDB in line protocol format. The tutorial covers the configuration of both plugins, including specifying the precision of the data, setting the interval for data collection, and omitting the 'host' tag. The tutorial also provides examples of how to write real-time data to InfluxDB using Python scripts with both plugins.