Struct values encode as JSON objects. Each exported struct field becomes a member of the object unless
- the field's tag is "-", or
- the field is empty and its tag specifies the "omitempty" option.
The empty values are false, 0, any nil pointer or interface value, and any array, slice, map, or string of length zero. The object's default key string is the struct field name but can be specified in the struct field's tag value. The "json" key in the struct field's tag value is the key name, followed by an optional comma and options. Examples:
json:"-"json:"myName"json:"myName,omitempty"json:",omitempty"json:",string"