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json_helper.go
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/
json_helper.go
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// Copyright © 2023 Cisco Systems, Inc. and its affiliates.
// All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"encoding/json"
"fmt"
"os"
"k8s.io/client-go/util/jsonpath"
)
func PrintJSONData(data interface{}, fields string) error {
// If jsonpath is not set it will print the whole data as json format.
if fields == "" {
dataB, err := json.Marshal(data)
if err != nil {
return fmt.Errorf("failed to marshal data: %w", err)
}
fmt.Println(string(dataB))
return nil
}
j := jsonpath.New("parser")
if err := j.Parse(fields); err != nil {
return fmt.Errorf("failed to parse jsonpath: %w", err)
}
err := j.Execute(os.Stdout, data)
if err != nil {
return fmt.Errorf("failed to execute jsonpath: %w", err)
}
return nil
}