powr-sdk-api/dist/logger/index.js

Shared API core library for PowrStack projects

"use strict";

const winston = require("winston");
const {
  S3Transport
} = require("./s3");
const {
  GCSTransport
} = require("./gcs");

// Custom format for logs
const logFormat = winston.format.combine(winston.format.timestamp(), winston.format.errors({
  stack: true
}), winston.format.json());

// Create base transports array with console transport
const transports = [new winston.transports.Console()];

// Add S3 transport only in production and if enabled
if (process.env.NODE_ENV === "production") {
  if (process.env.LOG_DESTINATION === "s3") {
    console.log("Adding S3 transport");
    transports.push(new S3Transport({
      bucket: process.env.LOG_BUCKET_NAME,
      prefix: "logs",
      bufferSize: 100,
      flushInterval: 5000
    }));
  }
  if (process.env.LOG_DESTINATION === "gcs") {
    console.log("Adding GCS transport");
    transports.push(new GCSTransport({
      bucket: process.env.LOG_BUCKET_NAME,
      prefix: "logs",
      bufferSize: 100,
      flushInterval: 5000
    }));
  }
}

// Create the logger
const logger = winston.createLogger({
  level: process.env.LOG_LEVEL || "info",
  format: logFormat,
  defaultMeta: {
    service: process.env.LOG_SERVICE_NAME
  },
  transports
});
module.exports = logger;