The NERD stuff - opening for Domino to the modern web developer
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Presentation from Engage 2019 at AutoWorld in Brussels by Jan Krejcarek & Oliver Busse
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The NERD stuff - opening for Domino to the modern web developer
- 5. Simplestserverexample const http = require('http'); const server = http.createServer((req, res) => { res.statusCode = 200; res.setHeader('Content-Type', 'text/plain'); res.write(new Date().toISOString()); res.end(); }); server.listen({port:8080}, () => { console.log("listening") }); Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 7. Expressbasicprinciple Codefortheendpoint: router.get('/certificates/expiring/:someDate?', async (req, res, next) => { let d = null; if (typeof req.params.someDate != 'undefined') { d = parse(req.params.someDate); } else { d = addMonths(endOfDay(new Date()), 3); } try { var docs = await dao.getCertificatesExpiringBefore(d); res.json(docs); } catch (error) { res.status(500).json({error:error.message}) } }) Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 17. Persondocumentfortheapplication Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 21. DesignCatalog,DQL Addadatabasetothecatalog: load updall <database path> -e Updateadatabaseinthecatalogwhenthedesignchanges: load updall <database path> -d Whentheupdatefails: runtheupdallagainwiththe‑eflag: Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 24. DQLFacts3/3 "Mindthegap" DQLqueryneedsspacesaroundoperators,valuesanditemnames 'Cards'.Subtypes ='Beast' ERR_BAD_REQUEST:Queryisnotunderstandable‑syntaxerror‑MUSThaveat leastoneoperator UsetheexplainQuery()methodtoanalyzeyourqueriesandoptimizethem ['Cards'.Subtypes = 'Beast' AND 'Cards'.ConvertedManaCost > 4] 0. AND (childct 2) (totals when complete:) Prep 0.0 msecs, Exec 71.428 msecs, Sc 1.'Cards'.Subtypes = 'Beast' View Column Search estimated cost = 5 Prep 0.326 msecs, Exec 3.506 msecs, ScannedDocs 0, Entries 248, FoundDocs 1.'Cards'.ConvertedManaCost > 4 View Column Search estimated cost = 10 Prep 0.112 msecs, Exec 67.915 msecs, ScannedDocs 0, Entries 4482, FoundDoc Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 25. Settingupyourdevelopmentenvironment (1) InstallNode.jsruntime(Win,Mac,Linux) Grabyourfavoriteeditor(VSCoderecommended) Inittheproject mkdir myProject cd myProject npm init Addthedomino‑dbNodepackagetoyourproject npm install <pathToAppDevPack>/domino-domino-db-1.2.0.tgz -save Startcoding Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 27. Testing?Sure! Severalunittestpackagesavailable Mocha Tape Chai Sinon Testsaredefinedinseparatefiles Testsareconfiguredinthepackage.jsonfile { "test-unit": "NODE_ENV=test mocha '/**/*.spec.js'", } Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 29. Deployment‑usingaproxy AsNode.jsappscanusedifferentportsyoushouldutilizethemwitha proxytokeeptheURLendpointssimple nginxisalightweightproxyserverwhichiseasytosetup # excerpt from nginx.conf location /app1 { proxy_pass http://localhost:3001/; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } location /app2 { proxy_pass http://localhost:3002/; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 31. Deployment‑ProcessManager(2) starttheappwiththeprocessmanager pm2 start myApp.js showallappsmanagedbypm2 pm2 ls ┌───────────────────────┬────┬─────────┬──────┬───────┬────────┬─────────┬────────┬──────┬ │ App name │ id │ version │ mode │ pid │ status │ restart │ uptime │ cpu │ ├───────────────────────┼────┼─────────┼──────┼───────┼────────┼─────────┼────────┼──────┼ │ node alexa-node-red │ 11 │ N/A │ fork │ 24488 │ online │ 0 │ 2M │ │ node domino-node-list │ 9 │ N/A │ fork │ 24152 │ online │ 0 │ 2M │ │ node rootweb │ 10 │ N/A │ fork │ 24229 │ online │ 0 │ 2M │ │ node-red │ 0 │ N/A │ fork │ 5463 │ online │ 6 │ 49D │ └───────────────────────┴────┴─────────┴──────┴───────┴────────┴─────────┴────────┴──────┴ Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 35. domino‑dbmodule providesfourbasicoperationswithdata‑Create,Read,Update,Delete hasasingleentrypoint:userServer()function const { useServer } = require('@domino/domino-db'); const server = await useServer({hostName: 'localhost', connection:{ port: '30000' }}); Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 36. domino‑dbcommandlineexample const { useServer } = require('@domino/domino-db'); const serverConfig = {hostName: 'localhost',connection:{ port: '30000' const databaseConfig = { filePath: 'database/node-demo.nsf' }; (async function() { try { const server = await useServer(serverConfig); const db = await server.useDatabase(databaseConfig); const response = await db.bulkReadDocuments({ query: "'AllContacts'.State = 'FL'", itemNames: ['LastFirstName', 'Email'], computeOptions: { computeWithForm: true } }); console.log(JSON.stringify(response)); } catch (error) { console.log(`${error.code}: ${error.message}`) } })() Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 39. CRUDDetails‑Create Whencreatingadocument,youneedtoprovidethe"Form"property WhenwritingaDateitem,youneedtospecifyitlikethis: DueDate: { type: 'datetime', data: '2019-06-30'} Timeneedstobespecifiedtoahundredthofasecond,youcan'tdirectly useaJavaScriptDateobject YoucanspecifycomputeOptionstocomputeitemsinthedocument Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 40. CRUDDetails‑Read Youalwaysspecifywhichitemsyouwanttoreceive(keepstheamountof transfereddatalow) usecomputeOptionsparametertocomputethecontentofcomputedfor displayitems const response = await db.bulkReadDocuments({ query: "'AllContacts'.State = 'FL'", itemNames: ['LastFirstName', 'Email'], computeOptions: { computeWithForm: true } }); Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)