GPX Map Viewer

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Visit [Thunderforest](https://www.thunderforest.com/)\n - Sign up for a free account (includes 150,000 free map requests per month)\n - Navigate to your API Keys section in the dashboard\n - Copy your API key\n\n2. **Set Environment Variable in Val Town**:\n - In your Val Town project, go to the Environment Variables section\n - Add a new environment variable:\n - **Name**: `thunderforestAPIKey`\n - **Value**: Your Thunderforest API key (e.g., `abc123def456ghi789`)\n\n### Running the Application\n\n1. **Deploy to Val Town**: The `main.tsx` file is configured as an HTTP trigger\n2. **Access the Application**: Visit your Val Town URL to open the GPX viewer\n3. **Load GPX Files**: Click \"Select GPX Directory\" to choose a folder containing your GPX files\n\n### Usage Instructions\n\n1. **Select Directory**: Click the \"Select GPX Directory\" button and choose a folder containing `.gpx` files\n2. **Browse Files**: Use the file list on the left to navigate your GPX files\n3. **Select Tracks**: \n - Single click to select one file\n - Ctrl/Cmd+click to select multiple files\n - Shift+click to select a range of files\n4. **Search**: Use the search box to filter files by name\n5. **Customize View**:\n - Change basemap using the dropdown menu\n - Toggle weather radar overlay using the layer control checkbox\n - Adjust track opacity with the slider\n6. **Navigate**: Use standard map controls to pan and zoom\n\n### Map Providers\n\n**Basemaps:**\n- **OpenStreetMap**: Free, general-purpose map (no API key required)\n- **OpenTopoMap**: Free topographic map (no API key required)\n- **Thunderforest Landscape**: Premium landscape-focused map (requires API key)\n- **Thunderforest Outdoors**: Premium outdoor activities map (requires API key)\n\n**Overlay Layers:**\n- **Weather Radar**: Real-time NOAA weather radar data (no API key required)\n\n### Browser Compatibility\n\nThis application requires a modern browser that supports:\n- File System Access API (Chrome 86+, Edge 86+)\n- ES6+ JavaScript features\n- WebGL for map rendering\n\n### File Format Support\n\n- **GPX Files**: Standard GPS Exchange Format files with tracks, routes, and waypoints\n- **File Extensions**: `.gpx` files only\n- **Content**: Supports tracks with multiple segments, waypoints, and route data\n\n## Development\n\n### Project Structure\n\n```\n├── main.tsx # HTTP handler and tile proxy server\n├── index.html # Main application HTML\n├── map.js # Frontend JavaScript for map functionality\n└── README.md # This file\n```\n\n### API Endpoints\n\n- `/` - Serves the main application\n- `/tiles/*` - Proxies Thunderforest tile requests (keeps API key secure)\n- `/config.js` - Provides map configuration\n- `/map.js` - Serves the main JavaScript file\n\n### Security Features\n\n- API keys are stored securely as environment variables\n- Thunderforest requests are proxied through the server to prevent key exposure\n- CORS headers are properly configured for tile requests\n\n## Troubleshooting\n\n### Common Issues\n\n1. **\"Select GPX Directory\" not working**: Ensure you're using a supported browser (Chrome/Edge 86+)\n2. **Thunderforest maps not loading**: Check that your `thunderforestAPIKey` environment variable is set correctly\n3. **No GPX files found**: Ensure your directory contains files with `.gpx` extension\n4. **Maps not displaying**: Check browser console for JavaScript errors and ensure internet connectivity\n\n### Error Messages\n\n- **\"API key not configured\"**: Set the `thunderforestAPIKey` environment variable\n- **\"Error accessing directory\"**: Browser doesn't support File System Access API or permission denied\n- **\"No GPX files found\"**: Selected directory contains no `.gpx` files\n\n## License\n\nThis project is an MIT Licensed open source project. Much of the code was written using Cursor and Townie.ai so use at your own risk.","# GPX Map Viewer\n\nA web-based GPX file viewer that allows you to visualize GPS tracks on various basemaps.\n\n### Key Features\n\n- **Multi-file Support**: Load and view multiple GPX files simultaneously from a local directory\n- **Interactive Map Controls**: Pan, zoom, and switch between different map styles\n- **Multiple Basemaps**: Choose from OpenStreetMap, OpenTopoMap, and premium Thunderforest maps (Landscape and Outdoors)\n- **File Management**: Search and filter GPX files, select multiple files with Ctrl/Cmd+click or Shift+click for range selection\n- **Track Customization**: Adjust track opacity with a slider control\n- **Visual Markers**: Start points (red), end points (green), and waypoints (blue) are clearly marked\n- **Auto-fit**: Map automatically adjusts to show all selected tracks\n- **API Key Protection**: Thunderforest API keys are kept secure on the server side\n\n### Technical Architecture\n\n- **Frontend**: Vanilla JavaScript with Leaflet.js for mapping and Leaflet.GPX for GPX file parsing\n- **Backend**: TypeScript HTTP handler that serves static files and proxies map tile requests\n- **Map Tiles**: Supports both free (OpenStreetMap, OpenTopoMap) and premium (Thunderforest) tile providers\n- **File Access**: Uses the modern File System Access API for local directory browsing\n\n## How to Run\n\n### Prerequisites\n\n1. **Val Town Account**: This application runs on Val Town's serverless platform\n2. **Thunderforest API Key** (Optional): Required only if you want to use premium Thunderforest maps\n\n### Environment Variables\n\nTo use Thunderforest premium maps (Landscape and Outdoors styles), you need to set up an API key:\n\n1. **Get a Thunderforest API Key**:\n - Visit [Thunderforest](https://www.thunderforest.com/)\n - Sign up for a free account (includes 150,000 free map requests per month)\n - Navigate to your API Keys section in the dashboard\n - Copy your API key\n\n2. **Set Environment Variable in Val Town**:\n - In your Val Town project, go to the Environment Variables section\n - Add a new environment variable:\n - **Name**: `thunderforestAPIKey`\n - **Value**: Your Thunderforest API key (e.g., `abc123def456ghi789`)\n\n### Running the Application\n\n1. **Deploy to Val Town**: The `main.tsx` file is configured as an HTTP trigger\n2. **Access the Application**: Visit your Val Town URL to open the GPX viewer\n3. **Load GPX Files**: Click \"Select GPX Directory\" to choose a folder containing your GPX files\n\n### Usage Instructions\n\n1. **Select Directory**: Click the \"Select GPX Directory\" button and choose a folder containing `.gpx` files\n2. **Browse Files**: Use the file list on the left to navigate your GPX files\n3. **Select Tracks**: \n - Single click to select one file\n - Ctrl/Cmd+click to select multiple files\n - Shift+click to select a range of files\n4. **Search**: Use the search box to filter files by name\n5. **Customize View**:\n - Change basemap using the dropdown menu\n - Adjust track opacity with the slider\n6. **Navigate**: Use standard map controls to pan and zoom\n\n### Map Providers\n\n- **OpenStreetMap**: Free, general-purpose map (no API key required)\n- **OpenTopoMap**: Free topographic map (no API key required)\n- **Thunderforest Landscape**: Premium landscape-focused map (requires API key)\n- **Thunderforest Outdoors**: Premium outdoor activities map (requires API key)\n- **USGS National Map**: [The National Map](https://www.usgs.gov/programs/national-geospatial-program/national-map) from USGS\n\n### Browser Compatibility\n\nThis application requires a modern browser that supports:\n- File System Access API (Chrome 86+, Edge 86+)\n- ES6+ JavaScript features\n- WebGL for map rendering\n\n### File Format Support\n\n- **GPX Files**: Standard GPS Exchange Format files with tracks, routes, and waypoints\n- **File Extensions**: `.gpx` files only\n- **Content**: Supports tracks with multiple segments, waypoints, and route data\n\n## Development\n\n### Project Structure\n\n```\n├── main.tsx # HTTP handler and tile proxy server\n├── index.html # Main application HTML\n├── map.js # Frontend JavaScript for map functionality\n└── README.md # This file\n```\n\n### API Endpoints\n\n- `/` - Serves the main application\n- `/tiles/*` - Proxies Thunderforest tile requests (keeps API key secure)\n- `/config.js` - Provides map configuration\n- `/map.js` - Serves the main JavaScript file\n\n### Security Features\n\n- API keys are stored securely as environment variables\n- Thunderforest requests are proxied through the server to prevent key exposure\n- CORS headers are properly configured for tile requests\n\n## Troubleshooting\n\n### Common Issues\n\n1. **\"Select GPX Directory\" not working**: Ensure you're using a supported browser (Chrome/Edge 86+)\n2. **Thunderforest maps not loading**: Check that your `thunderforestAPIKey` environment variable is set correctly\n3. **No GPX files found**: Ensure your directory contains files with `.gpx` extension\n4. **Maps not displaying**: Check browser console for JavaScript errors and ensure internet connectivity\n\n### Error Messages\n\n- **\"API key not configured\"**: Set the `thunderforestAPIKey` environment variable\n- **\"Error accessing directory\"**: Browser doesn't support File System Access API or permission denied\n- **\"No GPX files found\"**: Selected directory contains no `.gpx` files\n\n## License\n\nThis project is open source and available under standard open source terms.","createdAt",["D",1748296763683],"branchVersion","branchId","d74f3f7a-3a70-11f0-9108-9e149126039e","id","d74ee0c0-3a70-11f0-9108-9e149126039e","GPXViewer",["D",1748291677148],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","A simple viewer for GPX files with open source data layers","imageUrl","https://imagedelivery.net/iHX6Ovru0O7AjmyT5yZRoA/e8b1bf27-85c1-4c04-511f-3297939e1b00/square512?exp=1789712969&sig=c53cbbb38e4b3b96c0b7581425d2e794051435486f3d650abd3e095325f79b2f","1ddd50bc-c8b7-4894-bbd7-afc2cc6750cb","pinnedFileId","be191442-3a73-11f0-8171-9e149126039e","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",1,"orgId","71771b1e-8da0-406a-9fa3-c5006b9de404","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_97":96,"_104":100},"org",{"_97":96,"_98":-5,"_99":100,"_18":55,"_101":102,"_103":25},"branch",{"_13":86,"_32":87,"_42":41,"_88":43,"_89":-5,"_90":-5,"_91":-5,"_92":-5,"_93":-5,"_94":44,"_95":96},"isOwned",53,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","bjtitus","handle","displayName","avatar","https://img.clerk.com/eyJ0eXBlIjoicHJveHkiLCJzcmMiOiJodHRwczovL2ltYWdlcy5jbGVyay5kZXYvb2F1dGhfZ2l0aHViL2ltZ18yZDNockZZOGtmYnMwRjhwdWx1QVYyNXNrVVcifQ","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_42":43,"_32":44,"_37":202,"_46":-5,"_47":25,"_48":49,"_50":49,"_51":52,"_53":54,"_18":55,"_56":57,"_58":59,"_60":-5,"_61":-5,"_62":63,"_64":65,"_66":-5,"_67":-5,"_68":-5,"_69":-5,"_70":71,"_72":71,"_73":74,"_75":74,"_76":74,"_77":71,"_78":71,"_79":203,"_81":204,"_83":205,"_85":25},"tree",[181,182,183,184,185],"files",[181,182,183,184,185],"counts",{"_170":171,"_172":63,"_173":171,"_174":175,"_176":177},"contents",[127,128,129,130,131],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_42":163,"_32":164,"_30":165,"_135":-5,"_40":41,"_39":166,"_137":59,"_37":167,"_13":156,"_33":20,"_34":168,"_24":25,"_142":-5,"_27":169},{"_42":159,"_32":28,"_30":31,"_135":-5,"_40":41,"_39":14,"_137":25,"_37":160,"_13":161,"_33":20,"_34":36,"_24":25,"_142":-5,"_27":162},{"_42":152,"_32":153,"_30":154,"_135":-5,"_40":41,"_39":148,"_137":59,"_37":155,"_13":156,"_33":20,"_34":157,"_24":25,"_142":-5,"_27":158},{"_42":144,"_32":145,"_30":57,"_135":-5,"_40":41,"_39":146,"_137":59,"_37":147,"_13":148,"_33":149,"_34":150,"_24":25,"_142":-5,"_27":151},{"_42":132,"_32":133,"_30":134,"_135":-5,"_40":41,"_39":136,"_137":25,"_37":138,"_13":139,"_33":140,"_34":141,"_24":25,"_142":-5,"_27":143},"48c27892-3a7c-11f0-a4ba-9e149126039e","map.js","d7511872-3a70-11f0-9108-9e149126039e","parentId",33,"latest",["D",1748296591947],10,"script","// Initialize the map\nconst map = L.map(\"map\").setView([0, 0], 2);\n\n// Define basemaps\nconst basemaps = {\n \"OpenStreetMap\": L.tileLayer(\"https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png\", {\n attribution: \"© OpenStreetMap contributors\",\n }),\n \"OpenTopoMap\": L.tileLayer(\"https://{s}.tile.opentopomap.org/{z}/{x}/{y}.png\", {\n attribution: \"© OpenStreetMap contributors, © OpenTopoMap\",\n }),\n \"Thunder - Landscape\": L.tileLayer(\n window.location.origin + \"/tiles/landscape/{z}/{x}/{y}.png\",\n {\n attribution: \"© OpenStreetMap contributors, © Thunderforest\",\n maxZoom: 22,\n },\n ),\n \"Thunder - Outdoors\": L.tileLayer(\n window.location.origin + \"/tiles/outdoors/{z}/{x}/{y}.png\",\n {\n attribution: \"© OpenStreetMap contributors, © Thunderforest\",\n maxZoom: 22,\n },\n ),\n \"USGS - National Map\": L.tileLayer(\n \"https://basemap.nationalmap.gov/arcgis/rest/services/USGSTopo/MapServer/tile/{z}/{y}/{x}?blankTile=false\",\n {\n attribution:\n \"USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road data; Natural Earth Data; U.S. Department of State HIU; NOAA National Centers for Environmental Information. Data refreshed February, 2025.\",\n maxZoom: 22,\n },\n ),\n};\n\n// Add default basemap\nbasemaps[\"OpenStreetMap\"].addTo(map);\n\n// Define overlay layers\nconst overlayLayers = {};\n\n// NOAA Weather Radar WMS Layer\nconst noaaRadarLayer = L.tileLayer.wms('https://opengeo.ncep.noaa.gov/geoserver/conus/conus_bref_qcd/ows', {\n layers: 'conus_bref_qcd',\n format: 'image/png',\n transparent: true,\n version: '1.1.1',\n attribution: '© NOAA National Weather Service',\n opacity: 0.7\n});\n\n// Create layer group for weather radar\nconst weatherRadar = L.layerGroup([noaaRadarLayer]);\noverlayLayers[\"Weather Radar\"] = weatherRadar;\n\n// Add layer control with basemaps and overlays\nconst layerControl = L.control.layers(basemaps, overlayLayers).addTo(map);\n\nlet currentGPX = null;\nlet allFiles = []; // Store all files for filtering\nlet selectedFiles = new Set(); // Store selected files\nlet gpxLayers = new Map(); // Store GPX layers for each file\nlet lastSelectedIndex = -1; // Track the last selected index\n\n// Function to update track opacity\nfunction updateTrackOpacity(opacity) {\n gpxLayers.forEach(layer => {\n if (layer) {\n layer.setStyle({ opacity: opacity, weight: 3 });\n }\n });\n}\n\n// Function to load a GPX file\nasync function loadGPX(gpxFile) {\n // Check if we already have this file loaded\n if (gpxLayers.has(gpxFile.url)) {\n return gpxLayers.get(gpxFile.url);\n }\n\n try {\n // Read the file content\n const text = await gpxFile.file.text();\n\n // Create new GPX layer\n const gpxLayer = new L.GPX(text, {\n async: true,\n marker_options: {\n startIconUrl:\n \"https://raw.githubusercontent.com/pointhi/leaflet-color-markers/master/img/marker-icon-2x-red.png\",\n endIconUrl:\n \"https://raw.githubusercontent.com/pointhi/leaflet-color-markers/master/img/marker-icon-2x-green.png\",\n shadowUrl: \"https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/images/marker-shadow.png\",\n wptIconUrls: {\n \"\": \"https://raw.githubusercontent.com/pointhi/leaflet-color-markers/master/img/marker-icon-2x-blue.png\",\n },\n },\n });\n\n // Wait for the GPX to be loaded\n await new Promise((resolve, reject) => {\n gpxLayer.on(\"loaded\", resolve);\n gpxLayer.on(\"error\", reject);\n });\n\n // Store the layer\n gpxLayers.set(gpxFile.url, gpxLayer);\n return gpxLayer;\n } catch (error) {\n console.error(\"Error loading GPX file:\", error);\n return null;\n }\n}\n\n// Function to update the map with selected files\nasync function updateMap() {\n // Remove all existing layers\n gpxLayers.forEach(layer => {\n if (map.hasLayer(layer)) {\n map.removeLayer(layer);\n }\n });\n\n // Add selected layers and collect their bounds\n const bounds = L.latLngBounds();\n let hasBounds = false;\n\n for (const fileUrl of selectedFiles) {\n const layer = gpxLayers.get(fileUrl);\n if (layer) {\n layer.addTo(map);\n if (layer.getBounds) {\n bounds.extend(layer.getBounds());\n hasBounds = true;\n }\n }\n }\n\n // Fit map to show all tracks if we have bounds\n if (hasBounds) {\n map.fitBounds(bounds, { padding: [50, 50] });\n }\n}\n\n// Function to create file list\nfunction createFileList(files) {\n const container = document.getElementById(\"file-list-container\");\n container.innerHTML = \"\";\n\n files.forEach((file, index) => {\n const div = document.createElement(\"div\");\n div.className = \"file-item\";\n if (selectedFiles.has(file.url)) {\n div.classList.add(\"selected\");\n }\n div.textContent = file.name;\n div.onclick = async (e) => {\n const isMultiSelect = e.metaKey || e.ctrlKey;\n const isRangeSelect = e.shiftKey && lastSelectedIndex !== -1;\n\n if (isRangeSelect) {\n // Select range of files\n const start = Math.min(lastSelectedIndex, index);\n const end = Math.max(lastSelectedIndex, index);\n\n // Clear existing selections if not using multi-select\n if (!isMultiSelect) {\n selectedFiles.clear();\n document.querySelectorAll(\".file-item\").forEach(item => {\n item.classList.remove(\"selected\");\n });\n }\n\n // Select all files in range\n for (let i = start; i <= end; i++) {\n const rangeFile = files[i];\n selectedFiles.add(rangeFile.url);\n container.children[i].classList.add(\"selected\");\n const layer = await loadGPX(rangeFile);\n if (layer) {\n await updateMap();\n }\n }\n } else if (isMultiSelect) {\n // Toggle selection\n if (selectedFiles.has(file.url)) {\n selectedFiles.delete(file.url);\n div.classList.remove(\"selected\");\n } else {\n selectedFiles.add(file.url);\n div.classList.add(\"selected\");\n }\n } else {\n // Single select\n selectedFiles.clear();\n document.querySelectorAll(\".file-item\").forEach(item => {\n item.classList.remove(\"selected\");\n });\n selectedFiles.add(file.url);\n div.classList.add(\"selected\");\n }\n\n // Update last selected index\n lastSelectedIndex = index;\n\n // Load the file if not already loaded\n const layer = await loadGPX(file);\n if (layer) {\n // Update the map\n await updateMap();\n }\n };\n container.appendChild(div);\n });\n}\n\n// Function to filter files based on search input\nfunction filterFiles(searchTerm) {\n const filteredFiles = allFiles.filter(file => file.name.toLowerCase().includes(searchTerm.toLowerCase()));\n createFileList(filteredFiles);\n}\n\n// Function to handle directory selection\nasync function handleDirectorySelect() {\n try {\n // Request directory access\n const dirHandle = await window.showDirectoryPicker();\n\n // Get all files in the directory\n allFiles = [];\n for await (const entry of dirHandle.values()) {\n if (entry.kind === \"file\" && entry.name.endsWith(\".gpx\")) {\n const file = await entry.getFile();\n allFiles.push({\n name: entry.name,\n url: URL.createObjectURL(file),\n file: file,\n });\n }\n }\n\n if (allFiles.length > 0) {\n // Clear previous selections\n selectedFiles.clear();\n gpxLayers.clear();\n lastSelectedIndex = -1;\n\n createFileList(allFiles);\n // Select and load the first file\n selectedFiles.add(allFiles[0].url);\n document.querySelector(\".file-item\").classList.add(\"selected\");\n lastSelectedIndex = 0;\n const layer = await loadGPX(allFiles[0]);\n if (layer) {\n await updateMap();\n }\n } else {\n throw new Error(\"No GPX files found in the selected directory\");\n }\n } catch (error) {\n console.error(\"Error accessing directory:\", error);\n const container = document.getElementById(\"file-list-container\");\n container.innerHTML = \"

Error accessing directory or no GPX files found.

\";\n }\n}\n\n// Add directory selection button and search input\nconst fileList = document.getElementById(\"file-list\");\n\n// Create opacity control\nconst opacityContainer = document.createElement(\"div\");\nopacityContainer.style.marginBottom = \"20px\";\n\nconst opacityLabel = document.createElement(\"label\");\nopacityLabel.textContent = \"Track Opacity: \";\nopacityLabel.style.marginRight = \"10px\";\n\nconst opacitySlider = document.createElement(\"input\");\nopacitySlider.type = \"range\";\nopacitySlider.min = \"0\";\nopacitySlider.max = \"1\";\nopacitySlider.step = \"0.1\";\nopacitySlider.value = \"1\";\nopacitySlider.style.width = \"100%\";\nopacitySlider.style.marginTop = \"5px\";\n\nopacitySlider.addEventListener(\"input\", (e) => {\n updateTrackOpacity(parseFloat(e.target.value));\n});\n\nopacityContainer.appendChild(opacityLabel);\nopacityContainer.appendChild(opacitySlider);\nfileList.insertBefore(opacityContainer, document.getElementById(\"file-list-container\"));\n\n// Create basemap selector\nconst basemapContainer = document.createElement(\"div\");\nbasemapContainer.style.marginBottom = \"20px\";\n\nconst basemapLabel = document.createElement(\"label\");\nbasemapLabel.textContent = \"Base Map: \";\nbasemapLabel.style.marginRight = \"10px\";\n\nconst basemapSelect = document.createElement(\"select\");\nbasemapSelect.style.padding = \"5px\";\nbasemapSelect.style.width = \"100%\";\nbasemapSelect.style.marginTop = \"5px\";\n\nObject.keys(basemaps).forEach(name => {\n const option = document.createElement(\"option\");\n option.value = name;\n option.textContent = name;\n basemapSelect.appendChild(option);\n});\n\nbasemapSelect.addEventListener(\"change\", (e) => {\n // Remove current base layer\n Object.values(basemaps).forEach(layer => {\n if (map.hasLayer(layer)) {\n map.removeLayer(layer);\n }\n });\n // Add selected base layer\n basemaps[e.target.value].addTo(map);\n});\n\nbasemapContainer.appendChild(basemapLabel);\nbasemapContainer.appendChild(basemapSelect);\nfileList.insertBefore(basemapContainer, document.getElementById(\"file-list-container\"));\n\n// Create search container\nconst searchContainer = document.createElement(\"div\");\nsearchContainer.style.marginBottom = \"20px\";\n\n// Create search input\nconst searchInput = document.createElement(\"input\");\nsearchInput.type = \"text\";\nsearchInput.placeholder = \"Search GPX files...\";\nsearchInput.style.width = \"100%\";\nsearchInput.style.padding = \"10px\";\nsearchInput.style.boxSizing = \"border-box\";\nsearchInput.style.marginBottom = \"10px\";\nsearchInput.addEventListener(\"input\", (e) => filterFiles(e.target.value));\n\n// Add elements to the page\nsearchContainer.appendChild(searchInput);\nfileList.insertBefore(searchContainer, document.getElementById(\"file-list-container\"));\n\nconst selectButton = document.createElement(\"button\");\nselectButton.textContent = \"Select GPX Directory\";\nselectButton.style.marginBottom = \"20px\";\nselectButton.style.padding = \"10px\";\nselectButton.style.width = \"100%\";\nselectButton.onclick = handleDirectorySelect;\nfileList.insertBefore(selectButton, document.getElementById(\"file-list-container\"));","label",[133],"79d63cb4-3a74-11f0-8eea-9e149126039e","main.tsx",15,["D",1748293238312],6,"http","import { readFile } from \"https://esm.town/v/std/utils@85-main/index.ts\";\n\nexport default async function (req: Request): Promise {\n const url = new URL(req.url);\n \n // Serve the main index.html page\n if (url.pathname === \"/\" || url.pathname === \"/index.html\") {\n try {\n const html = await readFile(\"/index.html\", import.meta.url);\n return new Response(html, {\n headers: { \"Content-Type\": \"text/html\" },\n });\n } catch (error) {\n return new Response(\"Error loading index.html\", { status: 500 });\n }\n }\n \n // Proxy Thunderforest tile requests to keep API key private\n if (url.pathname.startsWith(\"/tiles/\")) {\n const thunderforestApiKey = Deno.env.get('thunderforestAPIKey') || '';\n if (!thunderforestApiKey) {\n return new Response(\"API key not configured\", { status: 500 });\n }\n \n // Extract the tile path (everything after /tiles/)\n const tilePath = url.pathname.substring(7); // Remove \"/tiles/\"\n const queryParams = url.search;\n \n // Construct the Thunderforest URL\n const thunderforestUrl = `https://tile.thunderforest.com/${tilePath}?apikey=${thunderforestApiKey}${queryParams ? '&' + queryParams.substring(1) : ''}`;\n \n try {\n const response = await fetch(thunderforestUrl);\n const headers = new Headers();\n \n // Copy relevant headers\n if (response.headers.get('content-type')) {\n headers.set('content-type', response.headers.get('content-type')!);\n }\n \n // Add CORS headers for browser access\n headers.set('Access-Control-Allow-Origin', '*');\n \n return new Response(response.body, {\n status: response.status,\n headers: headers\n });\n } catch (error) {\n return new Response(\"Error fetching tile\", { status: 500 });\n }\n }\n \n // Serve a config.js with free map providers (no API key needed)\n if (url.pathname === \"/config.js\") {\n const configJs = `const config = {\n // Using free OpenStreetMap tiles - no API key required\n MAP_PROVIDERS: {\n osm: {\n url: 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',\n attribution: '© OpenStreetMap contributors'\n },\n // If you want to use Thunderforest, tiles are proxied through /tiles/\n thunderforest: {\n url: '/tiles/landscape/{z}/{x}/{y}.png',\n attribution: '© Thunderforest, © OpenStreetMap contributors'\n }\n }\n};`;\n \n return new Response(configJs, {\n headers: { \"Content-Type\": \"application/javascript\" },\n });\n }\n \n // Serve map.js\n if (url.pathname === \"/map.js\") {\n try {\n const mapJs = await readFile(\"/map.js\", import.meta.url);\n return new Response(mapJs, {\n headers: { \"Content-Type\": \"application/javascript\" },\n });\n } catch (error) {\n return new Response(\"Error loading map.js\", { status: 500 });\n }\n }\n \n // 404 for other paths\n return new Response(\"Not Found\", { status: 404 });\n}",[145],"f2b9764a-3a70-11f0-bba0-9e149126039e","index.html","ea7ea34c-3a70-11f0-b939-9e149126039e",["D",1748291723139],3,"\n\n \n \n \n GPX Map Viewer\n\n \n \n\n \n \n \n

GPX Files

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Diff · v37