I built Norway's EV charging map with Next.js and MapLibre GL JS — and hit a race condition that took me three sessions to fix
Ayyad Anwar developed an interactive EV charging map for Norway using Next.js and MapLibre GL JS. The project features over 10,000 charging stations and employs a greedy algorithm for optimal route planning. Anwar encountered and resolved a race condition during development that delayed the display of route lines on the map.
- ▪The map application, named StrømVei, plots more than 10,000 EV charging stations across Norway.
- ▪Anwar chose MapLibre GL JS over Mapbox due to the latter's requirement for a credit card even for free accounts.
- ▪The application uses GeoJSON clustering to efficiently render a large number of markers without crashing the browser.
DEV.to (Top) files mainly under programming. We currently carry 4,924 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
inspect →
Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/adyelmoro/i-built-norways-ev-charging-map-with-nextjs-and-maplibre-gl-js-and-hit-a-race-condition-3258 |
| Publication time | Wed, 20 May 2026 11:59:15 +0000 |
| Retrieval time | 2026-05-20T12:05:02.589Z |
| Last seen | 2026-05-20T12:05:02.589Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | e8TLg3dwhZ9G |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3942169) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Ayyad Anwar Posted on May 20 I built Norway's EV charging map with Next.js and MapLibre GL JS — and hit a race condition that took me three sessions to fix #nextjs #typescript #webdev #maps I recently shipped StrømVei — an interactive EV charging map and route planner for Norway, built with Next.js 16, TypeScript, MapLibre GL JS, and the free Nobil API.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
Discussion
0 commentsMore from DEV.to (Top)
