nuxt4-demo/server/plugins/03.error-logger.ts

import log4js from "logger";

const logger = log4js.getLogger("ERROR");

const processHandlersKey = "__personPanelErrorLoggerProcessHandlers";

function installProcessErrorLogging() {
    const g = globalThis as typeof globalThis & { [processHandlersKey]?: boolean };
    if (g[processHandlersKey]) return;
    g[processHandlersKey] = true;

    process.on("unhandledRejection", (reason) => {
        if (reason instanceof Error) {
            logger.error("[unhandledRejection]", reason.message, reason.stack ?? "");
        } else {
            logger.error("[unhandledRejection]", String(reason));
        }
    });

    process.on("uncaughtException", (err) => {
        logger.error("[uncaughtException]", err.message, err.stack ?? "");
    });
}

if (import.meta.dev) {
    console.log("plugin: 03.error-logger");
}

export default defineNitroPlugin((nitroApp) => {
    installProcessErrorLogging();

    nitroApp.hooks.hook("error", (error, context) => {
        const event = context.event;
        const tags = Array.isArray(context.tags) ? (context.tags as string[]).join(",") : "";
        logger.error(
            event?.method ?? "",
            event?.path ?? "(no request)",
            tags ? `[${tags}]` : "",
            "\n",
            error
        );
    });
});