Ep9 Send Email Notifications in Goroutines (WaitGroup and Semaphores in Golang)
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.
github.com/dhij/ecomm
blog post on keeping reference to the variable in a loop fixed in Go 1.22: https://go.dev/blog/loopvar-preview
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
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