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![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)](https://image.slidesharecdn.com/presentation-190517095906/85/The-NERD-stuff-opening-for-Domino-to-the-modern-web-developer-24-320.jpg)
![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)](https://image.slidesharecdn.com/presentation-190517095906/85/The-NERD-stuff-opening-for-Domino-to-the-modern-web-developer-36-320.jpg)
![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)](https://image.slidesharecdn.com/presentation-190517095906/85/The-NERD-stuff-opening-for-Domino-to-the-modern-web-developer-40-320.jpg)
Uploaded byOliver Busse
The NERD stuff - opening for Domino to the modern web developer
The document provides an overview of using the Node.js, Express, React, and Domino (NERD) stack to build web applications that access Domino data. It discusses Node.js and frameworks like Express, the Domino AppDevPack, the Proton server task, Design Catalog and DQL queries, development and deployment processes, the domino-db Node module, security options like IAM, and includes a demo of basic CRUD operations.
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The NERD stuff - opening for Domino to the modern web developer
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- 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)
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- 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)
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- 21. DesignCatalog,DQL Addadatabasetothecatalog: load updall <databasepath> -e Updateadatabaseinthecatalogwhenthedesignchanges: load updall <database path> -d Whentheupdatefails: runtheupdallagainwiththe‑eflag: Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
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- 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 npminit Addthedomino‑dbNodepackagetoyourproject npm install <pathToAppDevPack>/domino-domino-db-1.2.0.tgz -save Startcoding Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
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- 27. Testing?Sure! Severalunittestpackagesavailable Mocha Tape Chai Sinon Testsaredefinedinseparatefiles Testsareconfiguredinthepackage.jsonfile { "test-unit": "NODE_ENV=test mocha'/**/*.spec.js'", } Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
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- 29. Deployment‑usingaproxy AsNode.jsappscanusedifferentportsyoushouldutilizethemwitha proxytokeeptheURLendpointssimple nginxisalightweightproxyserverwhichiseasytosetup # excerpt fromnginx.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 $proxy_add_x_forwarded_for; } Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
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- 31. Deployment‑ProcessManager(2) starttheappwiththeprocessmanager pm2 start myApp.js showallappsmanagedbypm2 pm2ls ┌───────────────────────┬────┬─────────┬──────┬───────┬────────┬─────────┬────────┬──────┬ │ App name │ id │ version │ mode │ pid │ status │ restart │ uptime │ cpu │ ├───────────────────────┼────┼─────────┼──────┼───────┼────────┼─────────┼────────┼──────┼ │ node alexa-node-red │ 11 │ N/A │ fork │ 24488 │ online │ 0 │ 2M │ │ node domino-node-list │ 9 │ N/A │ fork │ 24152 │ online │ 0 │ 2M │ │ node rootweb │ 10 │ N/A │ fork │ 24229 │ online │ 0 │ 2M │ │ node-red │ 0 │ N/A │ fork │ 5463 │ online │ 6 │ 49D │ └───────────────────────┴────┴─────────┴──────┴───────┴────────┴─────────┴────────┴──────┴ Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
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- 35. domino‑dbmodule providesfourbasicoperationswithdata‑Create,Read,Update,Delete hasasingleentrypoint:userServer()function const { useServer} = require('@domino/domino-db'); const server = await useServer({hostName: 'localhost', connection:{ port: '30000' }}); Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
- 36. domino‑dbcommandlineexample const { useServer} = require('@domino/domino-db'); const serverConfig = {hostName: 'localhost',connection:{ port: '30000' const databaseConfig = { filePath: 'database/node-demo.nsf' }; (async function() { try { const server = await useServer(serverConfig); const db = await server.useDatabase(databaseConfig); const response = await db.bulkReadDocuments({ query: "'AllContacts'.State = 'FL'", itemNames: ['LastFirstName', 'Email'], computeOptions: { computeWithForm: true } }); console.log(JSON.stringify(response)); } catch (error) { console.log(`${error.code}: ${error.message}`) } })() Engage2019‑TheNERDstuff:openingDominotothemodernwebdeveloper(De07)
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- 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)
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