You can customize Octokit’s request lifecycle with hooks. Available methods are

octokit.hook.before("request", async (options) => {
validate(options);
});
octokit.hook.after("request", async (response, options) => {
console.log(`${options.method} ${options.url}: ${response.status}`);
});
octokit.hook.error("request", async (error, options) => {
if (error.status === 304) {
return findInCache(error.headers.etag);
}
throw error;
});
octokit.hook.wrap("request", async (request, options) => {
// add logic before, after, catch errors or replace the request altogether
return request(options);
});

See before-after-hook for more details on the 4 methods.