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Cache Tags using Workers

Send Additional Cache Tags using Workers

export default {
async fetch(request) {
const requestUrl = new URL(request.url);
const params = requestUrl.searchParams;
const tags =
params && params.has("tags") ? params.get("tags").split(",") : [];
const url =
params && params.has("uri") ? JSON.parse(params.get("uri")) : "";
if (!url) {
const errorObject = {
error: "URL cannot be empty",
};
return new Response(JSON.stringify(errorObject), { status: 400 });
}
const init = {
cf: {
cacheTags: tags,
},
};
return fetch(url, init)
.then((result) => {
const cacheStatus = result.headers.get("cf-cache-status");
const lastModified = result.headers.get("last-modified");
const response = {
cache: cacheStatus,
lastModified: lastModified,
};
return new Response(JSON.stringify(response), {
status: result.status,
});
})
.catch((err) => {
const errorObject = {
error: err.message,
};
return new Response(JSON.stringify(errorObject), { status: 500 });
});
},
};