From b681b28e337c9acde82e33f5b341567c333ecb92 Mon Sep 17 00:00:00 2001
From: Alex Vanin <alexey@nspcc.ru>
Date: Mon, 19 Oct 2020 21:27:38 +0300
Subject: [PATCH] [#172] v2/netmap: Add JSON converter for node info

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
---
 v2/netmap/json.go      | 36 ++++++++++++++++++++++++++++++++++++
 v2/netmap/json_test.go | 22 ++++++++++++++++++++++
 2 files changed, 58 insertions(+)
 create mode 100644 v2/netmap/json.go
 create mode 100644 v2/netmap/json_test.go

diff --git a/v2/netmap/json.go b/v2/netmap/json.go
new file mode 100644
index 0000000..6b840ca
--- /dev/null
+++ b/v2/netmap/json.go
@@ -0,0 +1,36 @@
+package netmap
+
+import (
+	"github.com/golang/protobuf/jsonpb"
+	netmap "github.com/nspcc-dev/neofs-api-go/v2/netmap/grpc"
+)
+
+func NodeInfoToJSON(n *NodeInfo) []byte {
+	if n == nil {
+		return nil
+	}
+
+	msg := NodeInfoToGRPCMessage(n)
+	m := jsonpb.Marshaler{}
+
+	s, err := m.MarshalToString(msg)
+	if err != nil {
+		return nil
+	}
+
+	return []byte(s)
+}
+
+func NodeInfoFromJSON(data []byte) *NodeInfo {
+	if len(data) == 0 {
+		return nil
+	}
+
+	msg := new(netmap.NodeInfo)
+
+	if err := jsonpb.UnmarshalString(string(data), msg); err != nil {
+		return nil
+	}
+
+	return NodeInfoFromGRPCMessage(msg)
+}
diff --git a/v2/netmap/json_test.go b/v2/netmap/json_test.go
new file mode 100644
index 0000000..2dae126
--- /dev/null
+++ b/v2/netmap/json_test.go
@@ -0,0 +1,22 @@
+package netmap_test
+
+import (
+	"testing"
+
+	"github.com/nspcc-dev/neofs-api-go/v2/netmap"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNodeInfoJSON(t *testing.T) {
+	exp := generateNodeInfo("public key", "/multi/addr", 2)
+
+	t.Run("non empty", func(t *testing.T) {
+		data := netmap.NodeInfoToJSON(exp)
+		require.NotNil(t, data)
+
+		got := netmap.NodeInfoFromJSON(data)
+		require.NotNil(t, got)
+
+		require.Equal(t, exp, got)
+	})
+}