FS2 examples (And ZIO too!)

A few fs2/zio examples

Converter1 (Also a ZIO version)

Converts from Fahrenheit file to stdout in Celsius

• Parses multiple input files
• Handles empty lines, comments, non doubles, missing files
• Formats to 2 decimal places
• Prepends with a header line

WindowedAverage (Also a ZIO version)

• Emits a windowed running average of the last 5 values

QueueExample (Also a ZIO version)

• Creates stream that emits incrementing int every 100ms to a queue
• Creates stream that reads int from queue and adds int to ref
• Runs both at the same time, terminating after 1 second, printing out the ref sum

EchoServer

• Listens for telnet to port 5555, 2 concurrent connections
• Echos commands back to user
• "EXIT" will say "Byebye!" and terminate their connection
• "KILLSERVER" will terminate the server
• Also spins up a REPL, so we can kill server cleanly from console, via SignallingRef

REPL (Also a ZIO version)

• A simple REPL example
• Echos in the input from stdin
• Exits loop upon "KILLSERVER" or EOF signal