snapshot of https://github.com/tldraw/tldraw.git (main, 2026-09-23; blobs > 131072B omitted)

templates/image-pipeline/worker/routes/upscale.ts

@@ -0,0 +1,57 @@
+import { IRequest } from 'itty-router'
+import { getUpscaleProvider } from '../providers'
+import type { UpscaleParams } from '../providers'
+
+interface UpscaleRequest {
+	/** URL of the image to upscale */
+	imageUrl: string
+	/** Scale factor (2 or 4) */
+	scale: number
+	/** Upscale method */
+	method: string
+}
+
+/**
+ * POST /api/upscale
+ *
+ * Upscales an image using an AI upscaler. Falls back to a placeholder
+ * if no API key is configured.
+ */
+export async function handleUpscale(request: IRequest, env: Env) {
+	const body = (await request.json()) as UpscaleRequest
+
+	if (!body.imageUrl) {
+		return new Response(JSON.stringify({ error: 'imageUrl is required' }), {
+			status: 400,
+			headers: { 'Content-Type': 'application/json' },
+		})
+	}
+
+	try {
+		const provider = getUpscaleProvider(body.method)
+		const params: UpscaleParams = {
+			imageUrl: body.imageUrl,
+			scale: body.scale,
+			method: body.method,
+		}
+
+		if (!provider.upscale) {
+			return new Response(
+				JSON.stringify({ error: `Provider "${provider.name}" does not support upscaling` }),
+				{ status: 400, headers: { 'Content-Type': 'application/json' } }
+			)
+		}
+
+		const result = await provider.upscale(params, env)
+
+		return new Response(JSON.stringify(result), {
+			headers: { 'Content-Type': 'application/json' },
+		})
+	} catch (e: any) {
+		console.error('Upscale error:', e)
+		return new Response(JSON.stringify({ error: e.message ?? 'Upscale failed' }), {
+			status: 500,
+			headers: { 'Content-Type': 'application/json' },
+		})
+	}
+}