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middleware.js
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import { NextResponse } from 'next/server';
export const config = {
matcher: '/:path*',
};
function customCollectEndpoint(req) {
const collectEndpoint = process.env.COLLECT_API_ENDPOINT;
if (collectEndpoint) {
const url = req.nextUrl.clone();
const { pathname } = url;
if (pathname.endsWith(collectEndpoint)) {
url.pathname = '/api/send';
return NextResponse.rewrite(url);
}
}
}
function customScriptName(req) {
const scriptName = process.env.TRACKER_SCRIPT_NAME;
if (scriptName) {
const url = req.nextUrl.clone();
const { pathname } = url;
const names = scriptName.split(',').map(name => name.trim().replace(/^\/+/, ''));
if (names.find(name => pathname.endsWith(name))) {
url.pathname = '/script.js';
return NextResponse.rewrite(url);
}
}
}
export default function middleware(req) {
const fns = [customCollectEndpoint, customScriptName];
for (const fn of fns) {
const res = fn(req);
if (res) {
return res;
}
}
return NextResponse.next();
}