log-vault/dist/formats/formatLoki.js

A generator of Winston logger instance with pre-defined configurable transports and formats and extra functionality.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.formatLoki = void 0;
const winston_1 = require("winston");
const __1 = require("..");
exports.formatLoki = (0, winston_1.format)((info) => {
    const { timestamp, level, meta, message, extra } = info;
    const { project, environment, ...otherLabels } = meta;
    let content = message;
    if (extra === null || extra === void 0 ? void 0 : extra.length)
        content = [message, ...extra];
    if (!["number", "string"].includes(typeof info.message))
        content = JSON.stringify(info.message, null, 2);
    const messageObj = {
        meta: otherLabels,
        content
    };
    return {
        timestamp,
        level,
        labels: { project, environment },
        message: messageObj,
        [__1.MESSAGE]: JSON.stringify(messageObj)
    };
});