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- Upgrade dependencies: Express 5.1, Mongoose 8.13, TypeScript 5.8, flat 6, dotenv 16 - Replace ts-node with tsx for dev, update build/dev scripts - Update tsconfig for ES2022 target with skipLibCheck - Add .env.example with all required environment variables - Refactor config: add IAppConfig interface, rootKey assertion, eventTtlDays - Update configureExpress: remove body-parser, use Express built-in JSON/urlencoded - Update configureMongoDB: new Mongoose 8 connect API - Rewrite Event model with timeseries schema (timeField/metaField) - Fix canRead bug: change || to && so either readKey or masterKey grants access - Rewrite events service: use flat v6 named import, new Event timeseries structure - Replace analysis service with full runQuery engine supporting all analysis types, intervals, group_by, timeframes, filters, order_by, limit, and extraction - Extend Query interface with all analysis types, filter operators, timeframe types - Update auth middleware: cast req.params to string for Express 5 compatibility - Add collections router: list collections and get collection properties - Add collections route to projects router - Update queries router: use runQuery, support GET and POST /run - Update events router: fix type casts for Express 5, use flat v6 - Update v1 index: add package.json version/name endpoint Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
… $dateAdd in pipeline - parseTimeframe: use setMonth/setFullYear for month/year relative timeframes instead of fixed 30/365 day approximations - Pipeline interval end: replace fixed-ms $add with $dateAdd aggregation operator so interval buckets are calendar-aware (correct for months with 28-31 days, leap years) - Remove unused intervalToMs helper Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- React 19 + TypeScript + Vite 6 + Tailwind CSS v4 via @tailwindcss/vite - Components: Layout, SettingsModal, ProjectSelector, CollectionPicker, QueryBuilder, FilterEditor, ResultChart - Hooks: useProjects, useCollections, useQuery - Recharts for time-series (LineChart) and group-by (BarChart) visualisation - Vite dev proxy: /1.0 → http://localhost:3000 - Zero TypeScript errors (strict mode) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…mes; update .gitignore Co-authored-by: nprail <10778661+nprail@users.noreply.github.com>
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@copilot is anything missing from the original requirements? If so, implement it |
… 8 null handling, FilterEditor property suggestions, settings refresh Co-authored-by: nprail <10778661+nprail@users.noreply.github.com>
Here's what was missing and has now been addressed in b1fc2d9:
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Upgrades the skeleton codebase into a fully functional Keen.io-compatible analytics platform using MongoDB time series collections, a complete query engine, and a React 19 explorer UI.
Server Upgrades
body-parser/cookie-parserin favor of Express 5 built-ins; switched dev runner fromts-nodetotsxtsconfig.json— target ES2022,skipLibCheck, removedimportHelperssrc/bin/www.ts— added proper TypeScript types (NodeJS.ErrnoException, explicitnormalizePortsignature)MongoDB Time Series Events
Replaced the flat
Eventmodel with a proper time series collection:events.tsuses a null-coalescing pattern (findOne(...) ?? new Collection(...)) for Mongoose 8HydratedDocumenttype compatibility.Bug Fix
canRead()inprojects.tsused||instead of&&, making it always throw:Keen.io Query Engine
IQueryinterface: 10 analysis types, all filter operators (eq/ne/lt/lte/gt/gte/exists/in/contains/not_contains/regex), absolute + relative timeframes (this_7_days,last_N_weeks,yesterday, etc.),interval,group_by,order_by,limitrunQuery()translates the DSL → MongoDB aggregation pipeline; uses$dateTruncfor interval bucketing,$percentilefor median/percentile analysis typesPOST /1.0/projects/:id/queries/runandGETvariant — auth viareadKeyAuthmiddlewareNew Endpoints
GET /1.0/projects/:id/collections— list collections with event counts and property schemaGET /1.0/projects/:id/collections/:name/properties— property name/type mapwriteKeyAuth/readKeyAuthmiddleware extracted for reuseReact 19 Frontend (
client/)Vite + React 19 + Tailwind CSS v4 SPA with Vite proxy to backend:
ProjectSelectorlocalStorage; re-fetches when root key changesQueryBuilderFilterEditor<datalist>) from collection schemaCollectionPickerResultChartLineChart(interval),BarChart(group_by), scalar displaySettingsModalCI
Updated
.github/workflows/docs.yamlto use Node 24,npm run build, and current action versions (actions/checkout@v4,actions/setup-node@v4).OpenAPI
Added
ReadKeyHeader/ReadKeyQuerysecurity schemes,QuerySchema,CollectionSchema, and all 4 new endpoint paths.Original prompt
Overview
Completely scaffold this repository into a production-ready, Keen.io-compatible analytics platform. The existing codebase has a skeleton with Express 4, Mongoose 5, and partial implementations. The goal is to upgrade and fully implement the system using the technologies and spec described below.
Tech Stack Requirements
Existing Code to Preserve / Migrate
The existing repo has:
src/app.ts— Express app entry (upgrade to Express 5)src/bin/www.ts— HTTP server entrysrc/config/config.ts— env config (keepROOT_KEY,MONGODB_URI,PORT)src/config/express.ts— Express middleware setup (migrate to Express 5, keep swagger-ui)src/config/mongoose.ts— Mongoose connection (upgrade to Mongoose 8 API — remove deprecated options)src/models/Project.ts— Project model withwriteKey,readKey,masterKey(keep as-is)src/models/Collection.ts— Collection model (keep as-is)src/models/Event.ts— Replace with a MongoDB time series collection model (see below)src/service/projects.ts— Project CRUD + key auth (keep, fixcanReadlogic bug — see below)src/service/events.ts— Event ingestion (keep, update for time series model)src/service/analysis.ts— Replace entirely with full Keen-compatible query translator (see below)src/interfaces/— AddQuery.tsinterface file (see below)The existing
src/api/directory likely contains route files — preserve and upgrade them to Express 5 router syntax. Also add a newqueriesroute.Key Bugs to Fix in Existing Code
src/service/projects.ts—canReadlogic bugThe current
canReadfunction has a bug:Fix it to:
MongoDB Time Series Event Model
Replace
src/models/Event.tswith a proper Mongoose time series collection. MongoDB time series collections require:timeField(must be aDate)metaFieldfor metadata used in queries/filteringUpdate
src/service/events.tsto write to this new model structure (settimestamptonew Date()or usekeen.timestampfrom event body if provided).Keen.io-Compatible Query DSL
src/interfaces/Query.ts