package export
import (
"encoding/json"
"fmt"
"io"
"io/ioutil"
"github.com/itchyny/gojq"
)
func FilterJSON(w io.Writer, input io.Reader, queryStr string) error {
query, err := gojq.Parse(queryStr)
if err != nil {
return err
}
jsonData, err := ioutil.ReadAll(input)
if err != nil {
return err
}
var responseData interface{}
err = json.Unmarshal(jsonData, &responseData)
if err != nil {
return err
}
iter := query.Run(responseData)
for {
v, ok := iter.Next()
if !ok {
break
}
if err, isErr := v.(error); isErr {
return err
}
if text, e := jsonScalarToString(v); e == nil {
_, err := fmt.Fprintln(w, text)
if err != nil {
return err
}
} else {
var jsonFragment []byte
jsonFragment, err = json.Marshal(v)
if err != nil {
return err
}
_, err = w.Write(jsonFragment)
if err != nil {
return err
}
_, err = fmt.Fprint(w, "\n")
if err != nil {
return err
}
}
}
return nil
}