openwisp-network-topology is the OpenWISP Django app for collecting, storing, visualizing, and comparing network topology data.
Core code lives in openwisp_network_topology/:
base/contains abstract models and core topology/snapshot behavior.api/,visualizer/,integrations/,tasks.py,signals.py,consumers.py, androuting.pyprovide API, graph visualization, integrations, background jobs, and websocket behavior.management/,fixtures/,templates/, andstatic/support imports, demo data, UI, and assets.- Tests live in
openwisp_network_topology/tests/andtests/.
- Use
docs/developer/installation.rstanddocs/developer/index.rstfor local setup, services, and baseline test commands. - Use
.github/workflows/ci.ymlfor CI-tested dependencies, QA/test commands, env vars, and supported Python/Django versions. - Use GitHub issue/PR templates when asked to open issues or PRs.
Follow the DRY principle: do not duplicate information or code across files.
If instructions conflict, repository config and CI workflows win first, official docs next, and this file is supplemental.
- Keep changes focused. Avoid unrelated refactors and formatting churn.
- Preserve public APIs, migrations, swappable models, topology parser behavior, graph data formats, snapshot semantics, and integration points unless explicitly required.
- Mark user-facing strings for translation with Django i18n helpers in Django code.
- Place imports at the top of the file. Only defer imports when necessary (e.g., Django model imports inside functions or methods where the app registry is not yet ready).
- Avoid unnecessary blank lines inside function and method bodies.
- Update docs when behavior, settings, public APIs, setup steps, topology formats, or supported versions change.
- Add or update tests for every behavior change.
- For bug fixes, write the regression test first, run it against the unfixed code, confirm it fails for the expected reason, then implement the fix.
- Use targeted tests while iterating, then run the documented full test command before considering the change complete.
- Run
openwisp-qa-formatafter editing when available. - Run
./run-qa-checkswhen present. Treat failures as blocking unless confirmed unrelated and reported. - Prefer in-process tests so coverage tools can measure changed code.
- Preserve tenant isolation and object-level permissions for organizations, topologies, links, nodes, snapshots, and related integrations.
- Be careful with queryset filtering, serializers, admin behavior, signals, Celery tasks, websocket consumers, graph snapshots, and parser integrations.
- When changing APIs, include tests for permissions, validation, filtering, pagination, and tenant boundaries.
- Watch for cross-tenant data leaks, permission bypasses, malformed topology input, unsafe graph data, unsafe redirects, and secrets.
- Preserve validation around topology payloads, parser output, graph JSON, integrations, snapshots, URLs, and imported data.
- Write comments and docstrings only when they explain why code is shaped a certain way. Put comments before the relevant code block instead of scattering them inside it.
- If setup, QA, or tests fail, check docs first, then compare with CI. If commands diverge, follow CI.