The sortedmap package provides some utility methods to sort maps by keys or values
See documentation at https://godoc.org/github.com/gobs/sortedmap
The most common use cases is to print the content of a map sorted by key:
unsorted := map[string]interface{}{
"b": 2.0,
"a": 1,
"c": true,
"e": nil,
"d": "four",
}
fmt.Println(sortedmap.AsSortedMap(unsorted)) // or
for _, ele := range sortedmap.AsSortedMap(unsorted) {
fmt.Println(ele) // implements Stringer
fmt.Println(ele.Key + ":" + ele.Value)
}
You can also generate a JSON object with sorted keys:
jbuffer, _ := json.MarshalIndent(sortedmap.AsSortedMap(unsorted), "", " ")
fmt.Println(string(jbuffer)