Go Routines

• Go routines is a way to spawn code so that it can be run in parallel or concurrently

The Main Routine

• The main routine is the top-level routine on your program. Other routines can be spawn from it
• Other routines are called child routines and are created using the go keyword

Go scheduler

• The routines are managed by the Go scheduler which uses by default all the available cores at your machine
• The go scheduler manages the go routines by applying context switching (interrupting some routines and resuming others)
• The context switching is usually executed when the routine is in a wait state (e.g., http calls)
• With these concurrency techniques the overall utilization of a single thread is improved

Channels

• It's a hub for communication between go routines
• Channels are typed. The messages sent through a channel must be of the same type