navigate to this directory and rename the example file mv example.env .env
go run main.go
open a web browser and visit http://localhost:8080/
to write new blocks, send a POST request (I like to use Postman) to http://localhost:8080/ with a JSON payload with BPM as the key and an integer as the value. For example:
{"BPM":50}
Send as many requests as you like and refresh your browser to see your blocks grow! Use your actual heart rate (Beats Per Minute) to track it over time.