37 lines
1.1 KiB
TypeScript
37 lines
1.1 KiB
TypeScript
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import { IncomingMessage, ServerResponse } from "http";
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import { parseRequest } from "./_lib/parser";
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import { getScreenshot } from "./_lib/chromium";
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import { getHtml } from "./_lib/template";
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const isDev = !process.env.AWS_REGION;
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const isHtmlDebug = process.env.OG_HTML_DEBUG === "1";
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export default async function handler(
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req: IncomingMessage,
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res: ServerResponse
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) {
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try {
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const parsedReq = parseRequest(req);
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const html = getHtml(parsedReq);
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if (isHtmlDebug) {
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res.setHeader("Content-Type", "text/html");
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res.end(html);
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return;
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}
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const { fileType } = parsedReq;
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const file = await getScreenshot(html, fileType, isDev);
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res.statusCode = 200;
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res.setHeader("Content-Type", `image/${fileType}`);
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res.setHeader(
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"Cache-Control",
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`public, immutable, no-transform, s-maxage=31536000, max-age=31536000`
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);
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res.end(file);
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} catch (e) {
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res.statusCode = 500;
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res.setHeader("Content-Type", "text/html");
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res.end("<h1>Internal Error</h1><p>Sorry, there was a problem</p>");
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console.error(e);
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}
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}
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