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package api
import (
"log"
"net/http"
"github.com/ponzu-cms/ponzu/system/item"
"github.com/tidwall/sjson"
)
func omit(it interface{}, res http.ResponseWriter, req *http.Request, data *[]byte) ([]byte, error) {
// is it Omittable
om, ok := it.(item.Omittable)
if !ok {
return *data, nil
}
// get fields to omit from json data
fields := om.Omit()
// remove each field from json, all responses contain json object(s) in top-level "data" array
var omitted []byte
for i := range fields {
var err error
omitted, err = sjson.DeleteBytes(*data, "data."+fields[i])
if err != nil {
log.Println("Erorr omitting field:", fields[i], "from item.Omittable:", it)
return nil, err
}
}
return omitted, nil
}
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