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Image Upload

\n \n
\n

\n \n Manage your blobs in Val Town settings\n \n

\n \n ,\n ));\n\napp.post(\"/\", async (c) => {\n try {\n const formData = await c.req.formData();\n const file = formData.get(\"file\");\n\n if (!file || !(file instanceof File)) {\n return c.text(\"No file uploaded\", 400);\n }\n\n const timestamp = Date.now();\n const key = `img_${timestamp}_${file.name}`;\n\n await blob.set(key, file);\n\n const baseUrl = new URL(c.req.url).origin;\n const imageUrl = `${baseUrl}/image/${encodeURIComponent(key)}`;\n\n return c.html(\n \n \n

Upload successful!

\n Image URL:\n

\n            {imageUrl}\n

\n
\n
\n \n
\n
\n Upload another |{\" \"}\n \n Manage blobs\n \n \n ,\n );\n } catch (error) {\n return c.text(`Error: ${error.message}`, 500);\n }\n});\n\napp.get(\"/image/:key\", async (c) => {\n try {\n const key = decodeURIComponent(c.req.param(\"key\"));\n const imageResponse = await blob.get(key);\n\n if (!imageResponse) {\n return c.text(\"Image not found\", 404);\n }\n\n const imageBlob = await imageResponse.blob();\n\n let contentType = \"image/jpeg\";\n if (key.includes(\".png\")) contentType = \"image/png\";\n else if (key.includes(\".gif\")) contentType = \"image/gif\";\n else if (key.includes(\".webp\")) contentType = \"image/webp\";\n\n return new Response(imageBlob, {\n headers: {\n \"Content-Type\": contentType,\n \"Cache-Control\": \"public, max-age=31536000\",\n },\n });\n } catch (error) {\n return c.text(`Error: ${error.message}`, 500);\n }\n});\n\nexport default app.fetch;","deleted","label",[60],"68d5b460-f097-11f0-be54-42dde27851f2","README.md","019bb80c-03c3-7256-8212-e514f22db533",["D",1768319353744],"# Image Upload Tool for Val Town\n\nA image hosting solution built on Val Town's blob storage. Upload images and get\npermanent, shareable URLs instantly.\n\n## What This Does\n\nThis val provides a web interface for uploading images to Val Town's blob\nstorage and generates permanent URLs that you can use anywhere.\n\n**Key Features:**\n\n- Generates permanent, shareable image URLs\n- Images stored in Val Town's blob storage (powered by Cloudflare R2)\n\n## How It Works\n\n1. **Upload**: Select an image file (PNG, JPG, GIF, WebP)\n2. **Store**: The image is saved to Val Town blob storage with a unique\n timestamped key\n3. **Share**: You receive a permanent URL in the format:\n `https://your-val.web.val.run/image/img_timestamp_filename.png`\n4. **Use**: Copy the URL and use it anywhere you need\n\n## Storage Details\n\n- Images are stored in Val Town's blob storage, which is backed by Cloudflare R2\n- Each upload gets a unique key: `img_[timestamp]_[filename]`\n- Images are cached with a 1-year cache header for optimal performance\n- All images in your account can be managed at:\n https://www.val.town/settings/blob\n\n## Limitations\n\n- **File size**: ~1MB per upload (Val Town form upload limitation)\n- **Total storage**:\n - Free tier: 10MB total\n - Pro tier: 1GB total\n- **File types**: Images only (PNG, JPG, GIF, WebP, SVG)\n- For files larger than 1MB, consider uploading to another service first, then\n fetching server-side\n\n## Credits\n\nThis val is a remix of\n[@stevekrouse/fileInputUploadExample](https://www.val.town/v/stevekrouse/fileInputUploadExample),\nwhich demonstrated the basic pattern for file uploads with Hono and Val Town.\n\nThe original example showed how to set `enctype=\"multipart/form-data\"` on forms.\nThis remix extends that foundationc with:\n\n- Persistent blob storage instead of just echoing the file back\n- Permanent URL generation for uploaded images\n\n## Usage\n\n1. **Fork this val** to your own Val Town account\n2. Visit your val's endpoint (it will have a URL like\n `https://yourusername-valname.web.val.run`)\n3. Upload images and copy the generated URLs\n4. 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Code