这篇文章将介绍一下使用npm进行Node-RED本地本地安装的方法。

本地安装

使用npm即可完成安装，执行命令如下：

执行命令：npm install -g --unsafe-perm node-red

• 本地版本确认

liumiaocn:~ liumiao$ npm -v
6.4.1
liumiaocn:~ liumiao$ node -v
v10.15.3
liumiaocn:~ liumiao$

• 安装Node-Red

liumiaocn:~ liumiao$ npm install -g --unsafe-perm node-red
/Users/liumiao/.nvm/versions/node/v10.15.3/bin/node-red -> /Users/liumiao/.nvm/versions/node/v10.15.3/lib/node_modules/node-red/red.js
/Users/liumiao/.nvm/versions/node/v10.15.3/bin/node-red-pi -> /Users/liumiao/.nvm/versions/node/v10.15.3/lib/node_modules/node-red/bin/node-red-pi

> bcrypt@3.0.6 install /Users/liumiao/.nvm/versions/node/v10.15.3/lib/node_modules/node-red/node_modules/bcrypt
> node-pre-gyp install --fallback-to-build

node-pre-gyp WARN Using request for node-pre-gyp https download
[bcrypt] Success: "/Users/liumiao/.nvm/versions/node/v10.15.3/lib/node_modules/node-red/node_modules/bcrypt/lib/binding/bcrypt_lib.node" is installed via remote
+ node-red@1.0.4
added 334 packages from 340 contributors in 19.568s
liumiaocn:~ liumiao$

• 版本和使用方法确认

liumiaocn:~ liumiao$ node-red -help
Node-RED v1.0.4
Usage: node-red [-v] [-?] [--settings settings.js] [--userDir DIR]
[--port PORT] [--title TITLE] [--safe] [flows.json]

Options:
-p, --port     PORT  port to listen on
-s, --settings FILE  use specified settings file
--title    TITLE process window title
-u, --userDir  DIR   use specified user directory
-v, --verbose        enable verbose output
--safe           enable safe mode
-?, --help           show this help

Documentation can be found at http://nodered.org
liumiaocn:~ liumiao$

启动服务

使用-p可以指定服务端口，但也可以直接启动，缺省端口为1880

执行命令：node-red -p 8080

liumiaocn:~ liumiao$ node-red -p 8080
5 Mar 06:05:44 - [info]

Welcome to Node-RED
===================

5 Mar 06:05:44 - [info] Node-RED version: v1.0.4
5 Mar 06:05:44 - [info] Node.js  version: v10.15.3
5 Mar 06:05:44 - [info] Darwin 19.2.0 x64 LE
5 Mar 06:05:44 - [info] Loading palette nodes
5 Mar 06:05:44 - [info] Settings file  : /Users/liumiao/.node-red/settings.js
5 Mar 06:05:44 - [info] Context store  : 'default' [module=memory]
5 Mar 06:05:44 - [info] User directory : /Users/liumiao/.node-red
5 Mar 06:05:44 - [warn] Projects disabled : editorTheme.projects.enabled=false
5 Mar 06:05:44 - [info] Flows file     : /Users/liumiao/.node-red/flows_liumiaocn.json
5 Mar 06:05:44 - [info] Creating new flow file
5 Mar 06:05:44 - [warn]

---------------------------------------------------------------------
Your flow credentials file is encrypted using a system-generated key.

If the system-generated key is lost for any reason, your credentials
file will not be recoverable, you will have to delete it and re-enter
your credentials.

You should set your own key using the 'credentialSecret' option in
your settings file. Node-RED will then re-encrypt your credentials
file using your chosen key the next time you deploy a change.
---------------------------------------------------------------------

5 Mar 06:05:44 - [info] Starting flows
5 Mar 06:05:44 - [info] Started flows
5 Mar 06:05:44 - [info] Server now running at http://127.0.0.1:8080/

界面确认

出现如下界面，即表明安装和运行已经成功

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