Unmarshaling a JSON array into a Go struct

Sometimes, you see heterogeneous JSON array like

["Hello world", 10, false]

Dealing with such an array in Go can be very frustrating. A []interface{} hell is just about as painful as the map[string]interface{} hell (See my earlier article about that).

The natural way to deal with data like that in Go would be a struct like

type Notification struct {
	Message  string
	Priority uint8
	Critical bool
}

See how much more meaning we've added?

Now, you can't just json.Unmarshal an array into a struct. I'll show you how to make that work.

Read more...

Tags:
  • go
  • json
  • programming
  • article
2016-01-13T13:22:06-08:00