Now that we have the gRPC implemementations to list and update notification events, let's create an ecomm-notification microservice to send email notification for each of the events. blog post on keeping reference to the variable in a loop fixed in Go : 0:00 intro and recap 1:56 loop every 30 seconds with a ticker 3:23 goroutines and a common mistake 4:33 add waitGroup and semaphores 6:45 add methods to send email and update db accordingly 11:53 add the ecomm-notification main file and run the server 14:13 add a quick fix for the demo 15:21 bring up services and test endpoints