Contributing to MyIP

Thanks for your interest in contributing! MyIP (demo website: IPCheck.ing) is an open-source IP toolbox — IP lookup, connectivity tests, WebRTC / DNS-leak detection, speed test, and more — built as a Vue 3 SPA with an Express 5 backend.

New here? Look for issues labeled good first issue — they're scoped to be doable without knowing the whole codebase.

Quick start

Fork the repo and create your branch from dev (never main — main only receives release merges from dev).
Set up: Node.js 20+ (CI runs on Node 24) and pnpm. The pnpm version is pinned via the packageManager field, so the easiest path is:
```
corepack enable   # or: npm install -g pnpm
pnpm install
pnpm dev          # starts Vite + the backend together
```
pnpm only. npm or yarn would produce a competing lockfile — PRs that touch package-lock.json / yarn.lock will be asked to redo the install with pnpm.
Make your change — one concern per PR, don't bundle unrelated changes.
Run pnpm check (tests + production build). It must be green before you open a PR.
Open your PR against dev, rebased onto the latest dev, with a clear description of what changed and why.

For anything non-trivial, open an issue first to discuss the approach — it saves you from building something that can't be merged.

Project map

frontend/   Vue 3 SPA (Pinia, vue-router, vue-i18n, Tailwind v4 + shadcn-vue)
api/        Express 5 handlers, one file per route (wired in backend-server.js)
common/     Code shared by both halves (validators, fetch helper, logger, …)
tests/      Node test runner specs (node --test)

The real architecture and convention docs are the AGENTS.md files: AGENTS.md (root), frontend/AGENTS.md, and api/AGENTS.md. Don't let the filename fool you — they're written for humans and AI agents alike, and they're the single source of truth for how this repo works. Read the root one plus whichever half you're touching before writing code.

Prefer a guided tour? The online Developer Guide walks through the project architecture, configuration, and deployment in detail (also available in 中文, français, and русский).

Key conventions (short version)

Details and rationale live in the AGENTS.md files; the headlines:

JavaScript only — no TypeScript, no lang="ts".
New functions use const arrow syntax (const fn = async () => {}).
Every new file opens with a header comment stating its purpose.
The full locales land together — user-visible copy ships in en / zh / fr / ru in the same PR (frontend/locales/; tests enforce it). beta locales are exempt — they fall back to English.
Backend logging goes through the shared pino logger (common/logger.js) — no console.* in api/ or common/.

Good places to start

DNS resolvers — the resolver list lives in api/data/dns-resolvers.js, a country-annotated data file written for exactly this kind of PR (the header comment documents the entry shape and rules, and tests/dns-resolvers-data.test.js checks your entry). Adding a well-known public resolver — especially from a country not yet represented — is a one-object change; the UI groups results by country automatically.

Connectivity test sites & lists — curated site lists live in frontend/data/connectivity-import-lists.js. Each member needs a committed 64px PNG icon at public/favicons/<id>.png, but you normally don't source it yourself: run pnpm test locally and the data test auto-downloads any missing icons (also runnable directly as pnpm fetch-favicons). Only if auto-fetch can't find a usable PNG do you hand-source one (on macOS, sips handles ICO→PNG). Remember to commit the PNGs with your change — CI stays offline and only checks they exist.

README translations — beyond the four READMEs we maintain (en / zh / fr / ru), community-maintained translations in any language are welcome. Create README_<LANG>.md from the English README.md (the canonical source), open it with a one-line "community-maintained translation — English is canonical" note in your language, and add your language to the switcher row near the top of the existing READMEs. Keep code blocks, URLs, and badges unchanged. Check open issues for requested languages before starting.

UI translations — improvements to the existing en / zh / fr / ru packs are welcome, and so is a whole new language. Adding one is two files: a locale pack under frontend/locales/ and a line in common/locale-registry.js. A partial pack is a welcome first PR — anything you don't translate falls back to English, and the language ships as beta until it's complete. Full walkthrough: TRANSLATING.md.

Bugs & feature requests

Use the issue templates in .github/ISSUE_TEMPLATE/ — one for bug reports (include terminal / browser console logs) and one for feature requests. Questions, setup help, and "is this a bug?" go to Discussions → Q&A instead — see SUPPORT.md. Security vulnerabilities go through the private channel in SECURITY.md, never a public issue.

Testing

Specs live in tests/ and run with pnpm test (Node's built-in test runner).
Non-visual logic — pure functions, composables, transforms, validators — ships with a spec in the same PR. Tests never hit real upstreams (the one exception: the connectivity data test may download missing favicons on local runs, never in CI).
UI rendering and browser APIs are out of scope for the Node runner; visual changes are verified by the maintainer during review, so mention in your PR what to look at.

Code of Conduct

This project follows a Code of Conduct. By participating, you agree to uphold it.

Thank you for making MyIP better! Every contribution — a one-line fix, a new resolver, a better translation — is appreciated.

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