koa-mongo-router/lib/utils/koa-logger.js

KOA REST API Router for MongoDB

Object.defineProperty(exports, "__esModule", { value: true });
exports.koaLogger = void 0;
const http_1 = require("http");
const node_server_utils_1 = require("node-server-utils");
async function koaLogger(ctx, next) {
    const start = process.hrtime();
    await next();
    ctx.response.res.on('finish', () => {
        const diff = process.hrtime(start);
        const time = Math.round((diff[0] * 1e9 + diff[1]) / 1000000);
        let url = ctx.url;
        const queryIndex = url.indexOf('?');
        if (queryIndex !== -1) {
            url = url.substr(0, queryIndex);
        }
        const logObject = {
            message: http_1.STATUS_CODES[ctx.response.status],
            status: ctx.response.status,
            method: ctx.method,
            url,
        };
        if (ctx.request.querystring != undefined && ctx.request.querystring !== '') {
            try {
                logObject.query = decodeURIComponent(ctx.request.querystring);
            } /* istanbul ignore next */
            catch (_a) {
                /**/
            }
        }
        /* istanbul ignore else */
        if (time != undefined) {
            logObject.time = time;
        }
        /* istanbul ignore if */
        if (ctx.state != undefined && ctx.state.error instanceof Error) {
            logObject.error = ctx.state.error.message;
            logObject.errorName = ctx.state.error.name;
            logObject.stack = ctx.state.error.stack.split('\n');
        }
        /* istanbul ignore else */
        if (ctx.response.status < 400) {
            node_server_utils_1.logger.info(logObject);
        }
        else if (ctx.response.status < 500) {
            node_server_utils_1.logger.warn(logObject);
        }
        else {
            node_server_utils_1.logger.error(logObject);
        }
    });
}
exports.koaLogger = koaLogger;