Example
Consider the following example:
type Company struct {
Name string
Location string
}
Hide/Skip Certain Fields
To export Revenue and Sales, but hide them from encoding/decoding, use json:"-" or rename the variable to begin with a lowercase letter. Note that this prevents the variable from being visible outside the package.
type Company struct {
Name string `json:"name"`
Location string `json:"location"`
Revenue int `json:"-"`
sales int
}
Ignore Empty Fields
To prevent Location from being included in the JSON when it is set to its zero value, add ,omitempty to the json tag.
type Company struct {
Name string `json:"name"`
Location string `json:"location,omitempty"`
}
