{"id":8384,"date":"2019-07-22T12:47:31","date_gmt":"2019-07-22T12:47:31","guid":{"rendered":"https:\/\/prominic.net\/?p=8384"},"modified":"2023-03-28T18:35:03","modified_gmt":"2023-03-28T18:35:03","slug":"what-is-node-red-for-domino","status":"publish","type":"post","link":"https:\/\/wordpress.prominic.net\/what-is-node-red-for-domino\/","title":{"rendered":"What is Node-RED for Domino?"},"content":{"rendered":"<p>There has been a lot of talk with the arrival of Domino 10 about Node.js and how it will upgrade Domino apps with ease.<\/p>\n<p>One solution that has been suggested, especially for those of us who are not Node.js experts is Node-RED.<\/p>\n<p>Let\u2019s see what Node-RED promises to do: it wires together hardware devices APIs and online services. The flows and authentication are held in JSON. Two other things that are great, is that it\u2019s event-driven and it also comes with a browser-based flow editor.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8386\" src=\"\/wp-content\/uploads\/2020\/03\/Node-Red.png\" alt=\"Node-Red function\" width=\"472\" height=\"269\" \/><\/p>\n<p>Image Source: https:\/\/nodered.org\/#features<\/p>\n<p>Here is why Node-RED is a good idea:<\/p>\n<ul>\n<li>Low code &#8211; because it works with nodes, code writing is brought to a minimum.<\/li>\n<li>Easy install and run &#8211; because it is built on Node.js, you can easily run at the edge of the network on low-cost hardware such as the Raspberry Pi as well as in the cloud.<\/li>\n<li>Coding is as easy as can be, so even somebody who does not have all that much experience with development should be able to write decent code.<\/li>\n<li>Easy to share solutions &#8211; The flows created in Node-RED are stored using JSON which can be easily imported and exported for sharing with others.<\/li>\n<li>Library with ready-made integrations points &#8211; A built-in library allows you to save useful functions, templates or flows for re-use.<\/li>\n<\/ul>\n<p>Why it\u2019s a good thing for Domino? Since it\u2019s the tool used by Domino to abstract the use of the standard APIs exposed by the \u201cdomino-db NPM package.\u201d, it comes in really handy. Also, you can add:<\/p>\n<ul>\n<li>it has lots of third-party add-ons<\/li>\n<li>It simplifies integration<\/li>\n<li>It offers dashboards<\/li>\n<li>You can easily schedule JavaScript functions<\/li>\n<\/ul>\n<p>You can use it on Node.js, Linux is preferred but support for Windows is also provided. As far as cloud goes, make your pick: AWS, IBM Cloud, MS Azure.<\/p>\n<p>You now might have a new question in mind: What are these Nodes you are talking about? Well, nodes are asynchronous black boxes that can use flow, sub-flow global and configuration objects. A node will pass data in a msg object. The flows and authentication are held in JSON and they code with HTML and JavaScript.<\/p>\n<p>Let\u2019s now dive deeper into the matter by addressing the issue of installing it. Here are some links that can help you with the local installation: <a href=\"https:\/\/nodered.org\/docs\/getting-started\/installation\" target=\"_blank\" rel=\"noopener noreferrer\">Getting Started<\/a>\u00a0and <a href=\"https:\/\/nodered.org\/docs\/getting-started\/installation\" target=\"_blank\" rel=\"noopener noreferrer\">Installing on Windows<\/a> ).<\/p>\n<p>To install Node.js you\u2019ll first need to get it from https:\/\/nodejs.org\/en\/. Run the installation as an administrator, accept de defaults and that is it.<\/p>\n<p>To install Node-RED you\u2019ll need to run cmd, execute: npm install -g &#8211;undafe-perm node-red, Run \u201cnode-red\u201d. At this step Node-RED will create a new folder in your %HOMEPATH% folder called .nde-red. You\u2019ll need to point a local browser at http:\/\/localhost:1880.<\/p>\n<p>You can now start with your app development. \ud83d\ude42<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8388\" src=\"\/wp-content\/uploads\/2020\/03\/Node-Red-for-DOmino-Nodes-fundamentals.png\" alt=\"Node Red for DOmino Nodes fundamentals\" width=\"512\" height=\"364\" \/><\/p>\n<p>Here is the link to the <a href=\"https:\/\/www.slideshare.net\/paulswithers1\/engage-2019-introduction-to-nodered\">great presentation<\/a> on Node-RED from Paul Withers and Fredrik Malmborg at Engage 2019.<\/p>\n<p>To help you with your work, here are some Nodes fundamentals:<\/p>\n<p>Input nodes<br \/>\none output endpoint (one endpoint can have many wires connected)<br \/>\nbutton to actuate<br \/>\nOutput nodes<br \/>\none input endpoint<br \/>\nbutton to enable\/disable<br \/>\nProcessing nodes<br \/>\none input and one or more output endpoints<\/p>\n<p>-msg.payload<\/p>\n<p>Node-RED nodes consume input messages and produce output messages.<br \/>\nMessages are JavaScript objects that contain at least a \u201cpayload\u201d parameter<br \/>\nmsg = {<br \/>\npayload: \u201cmessage payload\u201d<br \/>\n};<\/p>\n<p>Fundamentals &#8211; input nodes<\/p>\n<p>Inject: injects a message on clicking the button, or by schedule.<br \/>\nHTTP: acts as a basic webserver<br \/>\nWebsocket<br \/>\nMQTT<br \/>\nTCP<br \/>\nUDP<br \/>\nSerial in<\/p>\n<p>Fundamentals &#8211; output nodes<\/p>\n<p>The input nodes have a corresponding output node of the same type.<br \/>\nDebug: used to catch and display messages.<\/p>\n<p>Fundamentals &#8211; function node<\/p>\n<p>A function node uses the input message to produce one or more output messages.<br \/>\nif (msg.payload ===\u201dDomino\u201d) {<br \/>\nmsg.payload = \u201cYou should use Domino!\u201d<br \/>\n}else {<br \/>\nmsg.payload = \u201cYou should \u201d<br \/>\n}<br \/>\nreturn msg;<\/p>\n<p>Fundamentals &#8211; some processing nodes<br \/>\nSwitch: easily route messages depending on the properties of the input.<br \/>\nHTTP request: a request to a URL with the method you choose (GET, PUT, etc).<br \/>\nChange: configurable rules for manipulating the message, including search and replace.<br \/>\nCSV: converting to and from CSV.<br \/>\nJSON: converting to and from JSON.<br \/>\nXML: converting to and from XML.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>There has been a lot of talk with the arrival of Domino 10 about Node.js and how it will upgrade Domino apps with ease. One solution that has been suggested, especially for those of us who are not Node.js experts is Node-RED. Let\u2019s see what Node-RED promises to do: it wires together hardware devices APIs [&hellip;]<\/p>\n","protected":false},"author":27,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-8384","post","type-post","status-publish","format-standard","hentry","category-hcl-domino-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.3 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Node-RED for Domino? - Prominic.NET<\/title>\n<meta name=\"description\" content=\"What is Node-RED for Domino?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/wordpress.prominic.net\/what-is-node-red-for-domino\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is Node-RED for Domino?\" \/>\n<meta property=\"og:description\" content=\"What is Node-RED for Domino?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/wordpress.prominic.net\/what-is-node-red-for-domino\/\" \/>\n<meta property=\"og:site_name\" content=\"Prominic.NET\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Prominic\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-07-22T12:47:31+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-03-28T18:35:03+00:00\" \/>\n<meta name=\"author\" content=\"Raluca Robu\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@prominic\" \/>\n<meta name=\"twitter:site\" content=\"@prominic\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Raluca Robu\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/wordpress.prominic.net\/what-is-node-red-for-domino\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/wordpress.prominic.net\/what-is-node-red-for-domino\/\"},\"author\":{\"name\":\"Raluca Robu\",\"@id\":\"https:\/\/wordpress.prominic.net\/#\/schema\/person\/0a78f34551bd83590cb250875be1cb94\"},\"headline\":\"What is Node-RED for Domino?\",\"datePublished\":\"2019-07-22T12:47:31+00:00\",\"dateModified\":\"2023-03-28T18:35:03+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/wordpress.prominic.net\/what-is-node-red-for-domino\/\"},\"wordCount\":720,\"publisher\":{\"@id\":\"https:\/\/wordpress.prominic.net\/#organization\"},\"articleSection\":[\"HCL Domino\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/wordpress.prominic.net\/what-is-node-red-for-domino\/\",\"url\":\"https:\/\/wordpress.prominic.net\/what-is-node-red-for-domino\/\",\"name\":\"What is Node-RED for Domino? 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