Go: Design Patterns for Real-World Projects

Summary

In this chapter, we covered a lot of ground. We learned different techniques to gracefully shut down programs using signaling channels, which is especially important when our code has some work to do before it can exit. We saw that deferring the reporting of fatal errors at the start of our program can give our other deferred functions a chance to execute before the process ends.

We also discovered how easy it is to interact with MongoDB using the mgo package and how to use BSON types when describing concepts for the database. The bson.M alternative to map[string]interface{} helps us keep our code more concise while still providing all the flexibility we need when working with unstructured or schemaless data.

We learned about message queues ...