======Node-Red======

====Externi odkazy====
[[http://ss64.com/vb/|Seznam prikazu a objektu]]\\
[[http://technet.microsoft.com/en-us/library/ee198844.aspx|Scriptovani na MS]]\\

====Instalace offline (na intranetu)====
npm install -g npmbox ... instalace nmpbox balicku\\
npmbox npmbox ... stahne npmbox a zavislosti do balicku\\
npm install pm2 -g ... nainstaluje se libovolny balik, treba pm2\\
npmbox pm2 ... zabali se nainstalovany balik\\
scp npmbox.npmbox pm2.npmbox root@offline-server:. ... pretahne se balicek npmbox.npmbox a pm2 na vzdaleny offline server\\
ssh  root@offline-server ... pripojime se na server\\
tar --no-same-owner --no-same-permissions -xvzf npmbox.npmbox ... rozbali se archiv\\
npm install --global --cache ./.npmbox.cache --optional --cache-min 99999999999 --shrinkwrap false npmbox ... nainstaluje se obsah balicku - npmbox\\
npmunbox pm2.npmbox --global ... nainstaluje se pm2 z baliku\\

==Jiny zpusob==
npm cache clear\\
npm install -g **package.x.y.z**\\
scp -R /.npm/* **/cache-whatever-folder**\\
npm cache clear\\
npm install --global --cache **/cache-whatever-folder** --optional --cache-min 99999999999 --shrinkwrap false **package.x.y.z**\\
\\
[[https://www.npmjs.com/package/offline-npm|offline-npm]] ... dalsi alternativa\\

====nastaveni, bezpecnost====
[[https://gist.github.com/DaveThw/da394c8d04fa2bba55ac|node-red]] ... skript na systemd (systemctl) sluzbu\\
/usr/local/lib/node_modules/node-red/settings.js ... globalni nastaveni\\
~/.node-red/settings.js ... lokalni nastaveni\\
cd /usr/local/lib/node_modules; node -e "console.log(require('bcryptjs').hashSync(process.argv[1], 8));" "aaa" ... vygeneruje heslo\\
openssl genrsa -out privkey.pem\\
openssl req -new -x509 -key privkey.pem -out cert.pem -days 1095\\
[[http://www.hardill.me.uk/wordpress/2015/05/11/securing-node-red/|Nastaveni https, ldap, ...]]\\
[[https://openenergymonitor.org/forum-archive/node/12489.html|Reverse proxy]] pro Node-Red\\

====Administrace====
[[https://github.com/node-red/cookbook.nodered.org/wiki/How-to-backup-flows-and-related-configuration|How to backup flows and related configuration]] ... backup a restore Nodered\\

====Promenne====
context.get('count') ... nacte promennou count (lokalni v nodu)\\
flow.set('count', hodnota) ... zapise do promenne count hodnotu promenne hodnota (lokalni v celem flow)\\
global.get('count') ... nacte globalni promennou count\\
return {payload : msg.payload.a.b[1].cislo } vrati hodnotu nactenou ze vstupu (msg.payload) a protoze to je objekt, referuji na konkretni vlastnost objektu\\

====Email====
<code>
msg = {
 payload : "Obsah mailu" + Date().toString(),
 topic : "Subject",
 to : "1@a.b, 2@a.b",
 cc : "3@a.b"
 bcc : "4	@a.b"
};
return m sg
</code>

====bloky (flows)====
[[https://flows.nodered.org/flow/43501a1b424434de0ffb|forEach (array iteration & completion)]]\\
[[https://flows.nodered.org/node/node-red-contrib-actionflows|node-red-contrib-actionflows]]\\
[[https://flows.nodered.org/node/node-red-node-pi-gpiod|GPIOd]] - ovladani GPIO sbernice na Raspberry\\

====Priklady====
==Webove stranky==
[[http://l0l.org.uk/2014/01/simple-node-red-web-page/|Node-red web page – an example to get you started]] - jednoduche webove stranky s daty z casovace\\
[[https://cookbook.nodered.org/http/work-with-cookies|Work with cookies]] - ukazka prace s cookies]]
[[http://developers.sensetecnic.com/article/sentiment-chat-with-node-red/|How to Build a Great Chat Application With Node-RED and Websockets\\
[[https://github.com/TotallyInformation/node-red-contrib-uibuilder|A Node-RED web user interface builder]] - vytvareni uzivatelskeho prostredi s NodeRed - priklad s JQuery, Riot, MoonJS, Umbrella JS\\
==MongoDB==
[[https://medium.com/@motiooon/workflow-based-visual-programming-with-node-red-81b720359c7|Workflow based visual programming with Node Red]]Prace s MongoDB\\
[[http://www.rgot.org/mongodb-et-node-red/|Mongodb et Node-red]] ... Videa od François Riotte\\
===Ostatni===
[[https://medium.com/node-red/node-red-design-patterns-893331422f42|Node-RED Design Patterns]] ... popisy Node-Red konstrukci\\
[[https://www.coursera.org/learn/developer-nodered/lecture/sxBvz/node-red-forms-and-templates|Node-RED Forms and Templates]]\\
[[https://totallyinformation.github.io/nr-qa/dashboard-template-examples.html|Node-RED Dashboard Template Examples (AngularJS)]]\\
[[https://www.compose.com/articles/authenticating-node-red-with-jsonwebtoken/|Authenticating Node-RED with JSONWebToken]] - popis i animovane obrazky\\
[[https://www.compose.com/articles/authenticating-node-red-using-jsonwebtoken-part-2/|Authenticating Node-RED using JSONWebToken - Part 2]] - popis i animovane obrazky\\
[[https://www.compose.com/articles/5-minute-signup-with-node-red-and-compose/|5-minute Signup Forms with Node-RED and Compose]] - popis i animovane obrazky\\
[[https://www.compose.com/articles/power-prototyping-with-mongodb-and-node-red-2/|Power Prototyping with MongoDB and Node-RED]] - popis i animovane obrazky\\
[[www.compose.com/articles/quick-connections-for-mongodb-with-node-red/|Quick Connections for MongoDB with Node-RED]] - popis i animovane obrazky\\

]]\\