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Pull request overview
Updates repository documentation and automation to better describe the MERN employee records app, adds project metadata docs, introduces a database seed script, and modernizes the GitHub Actions CI workflow.
Changes:
- Expanded README with architecture, quick start, and MongoDB feature links.
- Added
seed.jsfor populatingemployees.records, plus new repo docs (AGENTS.md,EDD.md) and a Claude plugin settings file. - Updated CI workflow to use newer Node versions, newer actions, and run Cypress via
cypress-io/github-action.
Reviewed changes
Copilot reviewed 6 out of 6 changed files in this pull request and generated 6 comments.
Show a summary per file
| File | Description |
|---|---|
README.md |
Replaces minimal README with a full overview, architecture diagram, and setup instructions. |
mern/server/seed.js |
Adds a MongoDB seed script for sample employee records. |
EDD.md |
Documents the data model and includes a Mermaid ER diagram. |
AGENTS.md |
Adds an AI agent guide describing structure and common commands. |
.github/workflows/main.yaml |
Modernizes CI (Node matrix, actions versions, Cypress action usage). |
.claude/settings.json |
Enables the official MongoDB Claude plugin for this repo. |
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| - name: Start server in the background | ||
| env: | ||
| env: | ||
| ATLAS_URI: ${{ secrets.ATLAS_URI }} | ||
| run: (cd mern/server && echo "ATLAS_URI=$ATLAS_URI" > config.env && npm start &) | ||
|
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| - name: Start React app in the background | ||
| run: (cd mern/client && npm start &) | ||
| run: | | ||
| echo "ATLAS_URI=$ATLAS_URI" > config.env | ||
| npm start & |
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| ### 2. Seed the database (optional) | ||
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| ```bash | ||
| cd mern/server | ||
| node seed.js | ||
| ``` |
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This PR improves the developer experience and CI reliability for the MERN stack example through several related changes.
Documentation
node --env-file), and MongoDB feature linksAGENTS.mdwith contributor and agent guidanceEDD.md(Engineering Design Document) describing the data model and architectureDeveloper environment
.devcontainer/with full GitHub Codespaces and VS Code Dev Container support:devcontainer.json— Node 22, VS Code extensions (MongoDB, TypeScript, Prettier), port forwardingdocker-compose.yml— MongoDB Atlas Local service with persistent volumes and health checksREADME.md— setup guide with troubleshootingmern/server/config.env.example— template for local configurationDatabase tooling
mern/server/seed.js— populatesemployees.recordswith sample data; used automatically in the devcontainer on startCI
mongo:latestservice container so CI runs without an Atlas secret (works on fork PRs)ATLAS_URIwritten directly from the service container credentials — no secrets requiredwait-on) before Cypress runs to prevent race conditionscypress.json+integration/) to v10+ (cypress.config.js+e2e/)Testing
CI runs on both Node 20 and 22 against a local MongoDB service container. The devcontainer setup has been manually verified with MongoDB Atlas Local.