50 lines
1.6 KiB
TypeScript
50 lines
1.6 KiB
TypeScript
/**
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* Image proxy route — serves Immich assets to the browser
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* without exposing the Immich server or API key.
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*
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* Usage: GET /api/image/:token?size=thumbnail|preview|original
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* The :token is an encoded asset ID (not a raw UUID).
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*/
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import { NextRequest, NextResponse } from 'next/server';
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import { immich, ImageSize } from '@/lib/immich';
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import { decodeAssetId } from '@/lib/tokens';
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const VALID_SIZES: ImageSize[] = ['thumbnail', 'preview', 'original'];
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export async function GET(
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request: NextRequest,
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{ params }: { params: Promise<{ id: string }> },
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) {
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const { id: token } = await params;
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// Decode the opaque token back to an Immich asset ID
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const assetId = decodeAssetId(token);
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if (!assetId) {
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return NextResponse.json({ error: 'Invalid token' }, { status: 400 });
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}
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// Parse and validate size parameter
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const sizeParam = request.nextUrl.searchParams.get('size') || 'preview';
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const size: ImageSize = VALID_SIZES.includes(sizeParam as ImageSize)
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? (sizeParam as ImageSize)
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: 'preview';
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const result = await immich.streamAsset(assetId, size);
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if (!result) {
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return NextResponse.json({ error: 'Asset not found' }, { status: 404 });
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}
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const headers: Record<string, string> = {
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'Content-Type': result.contentType,
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// Images are immutable once uploaded to Immich — cache aggressively
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'Cache-Control': 'public, max-age=31536000, immutable',
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};
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if (result.contentLength) {
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headers['Content-Length'] = result.contentLength;
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}
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return new NextResponse(result.stream, { headers });
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}
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