golang json marshal: how to omit empty nested struct

Question

go playground

As shown in the code above, one can use json:\",omitempty\" to omit certain fields in a struct to appear in json.

For example

Answer 1

Easy way

type  struct {
< varname > < vartype > \`json : -\`
}

Example :

type Boy struct {
name string \`json : -\`
}

this way on marshaling name will not get serialized.