feat: added JSON utility functions

internal/util/json.go

@@ -0,0 +1,59 @@
+package util
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+)
+
+type JSONObject = map[string]any
+type JSONArray = []any
+
+func TidyJSON(s string) string {
+	s = strings.ReplaceAll(s, "\n", "")
+	s = strings.ReplaceAll(s, "\t", "")
+	s = strings.ReplaceAll(s, "  ", "")
+	return strings.ReplaceAll(s, "\"", "'")
+}
+
+func UpdateJSON(input []byte, key string, value JSONObject) ([]byte, error) {
+	var (
+		data   map[string]any
+		output []byte
+		err    error
+	)
+
+	if json.Valid(input) {
+		// unmarshal input
+		err = json.Unmarshal(input, &data)
+		if err != nil {
+			return nil, fmt.Errorf("failed to unmarshal input data: %v", err)
+		}
+
+		// add KV, marshal, and return
+		data[key] = value
+		output, err = json.Marshal(data)
+		if err != nil {
+			return nil, fmt.Errorf("failed to marshal updated data: %v", err)
+		}
+		return output, nil
+	} else {
+		return nil, fmt.Errorf("not valid json")
+	}
+}
+
+func FromJSON(input []byte) (JSONObject, error) {
+	if json.Valid(input) {
+		var (
+			obj JSONObject
+			err error
+		)
+		err = json.Unmarshal(input, &obj)
+		if err != nil {
+			return nil, fmt.Errorf("failed to unmarshal input data: %v", err)
+		}
+		return obj, nil
+	} else {
+		return nil, fmt.Errorf("not a valid JSON")
+	}
+}