From d2cb10e3f1860a57908f4952dc15a96363834305 Mon Sep 17 00:00:00 2001
From: Kazuki-Nakanishi <kazuki.nakanishi.vr@hitachi-solutions.com>
Date: Thu, 9 Mar 2017 16:09:09 +0000
Subject: [PATCH] Created Design: Node settings (markdown)

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 Design:-Node-settings.md | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Design:-Node-settings.md

diff --git a/Design:-Node-settings.md b/Design:-Node-settings.md
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+/settings API returns only the following built-in fields by default.
+
+http://nodered.jp/docs/api/admin/methods/get/settings/
+
+A node can add their own settings to the above settings.
+
+### Adding a setting
+The way to register a node is as follows (https://nodered.org/docs/creating-nodes/first-node).
+
+`RED.nodes.registerType("lower-case",LowerCaseNode);`
+
+To add a node setting, add setting object.
+```
+RED.nodes.registerType("lower-case",LowerCaseNode,{
+  settings: {
+    lowerCaseLength:{
+      value: "10",
+      exportable: true
+    }
+  }
+});
+```
+* `value` - The value corresponding with the object name.
+* `exportable` - Whether the value will be output or not.
+
+### Overwriting a node setting by settings.js