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Said TurkseverandClaude Fable 5.1
547b706f67
Street Level is imagery only from here on: coverage, sequences and the embedded viewer. The Claude planner, map-feature and traffic-sign tiles, the NDJSON feature stream, sprites, detection outlines and analyst records go, along with @anthropic-ai/sdk, zod and the Anthropic key entry. Co-Authored-By: Claude Fable 5.1 <[email protected]>
62 lines
2.4 KiB
JavaScript
62 lines
2.4 KiB
JavaScript
import { fetchTile, TileRequestError, TileUpstreamError } from './tiles.js';
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import { mapillaryToken } from './constants.js';
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function sendJson(res, status, payload) {
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res.statusCode = status;
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res.setHeader('Content-Type', 'application/json; charset=utf-8');
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res.setHeader('Cache-Control', 'no-store');
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res.end(JSON.stringify(payload));
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}
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/** GET /api/mapillary/status — whether a token is configured, never its value. */
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function handleStatus(req, res) {
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if (req.method !== 'GET')
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return sendJson(res, 405, { error: 'Method not allowed' });
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sendJson(res, 200, { configured: Boolean(mapillaryToken()) });
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}
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/** GET /api/mapillary/tiles/coverage/{z}/{x}/{y} — cached protobuf tile. */
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async function handleTile(req, res) {
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if (req.method !== 'GET')
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return sendJson(res, 405, { error: 'Method not allowed' });
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const match = /^\/(coverage)\/(\d{1,2})\/(\d{1,6})\/(\d{1,6})$/.exec(
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(req.url || '').split('?')[0],
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);
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if (!match)
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return sendJson(res, 400, {
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error: 'Tile path must be /coverage/{z}/{x}/{y}',
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});
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if (!mapillaryToken())
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return sendJson(res, 503, { error: 'no_key', keyRequired: true });
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const abandoned = new AbortController();
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req.on?.('aborted', () => abandoned.abort());
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res.on?.('close', () => abandoned.abort());
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try {
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const { bytes, source } = await fetchTile(
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{ layer: match[1], z: match[2], x: match[3], y: match[4] },
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{ signal: abandoned.signal },
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);
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if (res.writableEnded) return;
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res.statusCode = bytes.length ? 200 : 204;
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res.setHeader('Content-Type', 'application/x-protobuf');
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res.setHeader('Cache-Control', 'public, max-age=3600');
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res.setHeader('X-Gev-Cache', source);
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res.end(bytes.length ? bytes : undefined);
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} catch (error) {
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if (res.writableEnded || abandoned.signal.aborted) return;
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if (error instanceof TileRequestError)
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return sendJson(res, error.status, { error: error.message });
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if (error instanceof TileUpstreamError)
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return sendJson(res, error.status >= 500 ? 502 : error.status, {
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error: error.message,
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});
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sendJson(res, 502, { error: error?.message || 'Tile fetch failed' });
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}
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}
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/** Attach every Mapillary route to a connect-style middleware stack. */
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export function installMapillaryRoutes(middlewares) {
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middlewares.use('/api/mapillary/status', handleStatus);
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middlewares.use('/api/mapillary/tiles', handleTile);
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}
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