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import type { NextRequest } from "next/server"; | ||
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const REGISTRY = "https://registry.npmjs.org"; | ||
const DEFAULT_TAG = "latest"; | ||
const SUPPORTED_PACKAGES = ["turbo"]; | ||
const SUPPORTED_METHODS = ["GET"]; | ||
const [DEFAULT_NAME] = SUPPORTED_PACKAGES; | ||
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async function fetchDistTags({ name }: { name: string }) { | ||
const result = await fetch(`${REGISTRY}/${name}`); | ||
const json = await result.json(); | ||
return json["dist-tags"]; | ||
} | ||
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function errorResponse({ | ||
status, | ||
message, | ||
}: { | ||
status: 400 | 404 | 500; | ||
message: string; | ||
}) { | ||
return new Response( | ||
JSON.stringify({ | ||
error: message, | ||
}), | ||
{ | ||
status, | ||
} | ||
); | ||
} | ||
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/* | ||
This API is called via the turbo rust binary to check for version updates. | ||
Response Schema (200): | ||
{ | ||
"type": "object", | ||
"properties": { | ||
"name": { | ||
"type": "string", | ||
}, | ||
"version": { | ||
"type": "string", | ||
}, | ||
"tag": { | ||
"type": "string", | ||
} | ||
} | ||
} | ||
Errors (400 | 404 | 500): | ||
{ | ||
"type": "object", | ||
"properties": { | ||
"error": { | ||
"type": "string", | ||
} | ||
} | ||
} | ||
*/ | ||
export default async function handler(req: NextRequest) { | ||
if (!SUPPORTED_METHODS.includes(req.method)) { | ||
return errorResponse({ | ||
status: 404, | ||
message: `unsupported method - ${req.method}`, | ||
}); | ||
} | ||
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try { | ||
const { searchParams } = new URL(req.url); | ||
const name = searchParams.get("name") || DEFAULT_NAME; | ||
const tag = searchParams.get("tag") || DEFAULT_TAG; | ||
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if (!SUPPORTED_PACKAGES.includes(name)) { | ||
return errorResponse({ | ||
status: 400, | ||
message: `unsupported package - ${name}`, | ||
}); | ||
} | ||
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const versions = await fetchDistTags({ name }); | ||
if (!versions || !versions[tag]) { | ||
return errorResponse({ | ||
status: 404, | ||
message: `unsupported tag - ${tag}`, | ||
}); | ||
} | ||
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return new Response( | ||
JSON.stringify({ | ||
name, | ||
version: versions[tag], | ||
tag, | ||
}), | ||
{ | ||
status: 200, | ||
headers: { | ||
"content-type": "application/json", | ||
// cache for 15 minutes, and allow stale responses for 5 minutes | ||
"cache-control": "public, s-maxage=900, stale-while-revalidate=300", | ||
}, | ||
} | ||
); | ||
} catch (e) { | ||
console.error(e); | ||
return errorResponse({ status: 500, message: e.message }); | ||
} | ||
} | ||
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export const config = { | ||
runtime: "experimental-edge", | ||
}; |