@vara/custom-logic-sdk/src/services/log-svc.js

Server Side JavaScript SDK for Custom Business Logic

/**
 * Created by stevenchin on 2/1/17.
 */

const bunyan = require('bunyan');
const _ = require('lodash');

const errorSerializer = require('./log-serializers/error-serializer');

const { LOGGING } = require('../../config/environment/env-config');

const logger = bunyan.createLogger({
  name: LOGGING.LOGGER_NAME,
  level: LOGGING.STD_OUT_LOG_LEVEL,
  serializers: {
    err: errorSerializer,
  },
});

// TODO: add helper methods to etx-common logger

/**
 * Helper method to log warnings in the correct format
 * @param err {Error}
 * @param logContext {Object}
 * @param logPrefix {String}
 * @param [messagePrefix] {String}
 */
logger.logWarning = function logWarning(err, logContext, logPrefix, messagePrefix) {
  const logCtx = _.cloneDeep(logContext);
  logCtx.err = err;
  if (messagePrefix) {
    return logger.warn(logCtx, `${logPrefix}:${err.name} ${messagePrefix} ${err.message}`);
  }
  return logger.warn(logCtx, `${logPrefix}:${err.name} ${err.message}`);
};

/**
 * Helper method to log errors in the correct format
 * @param err {Error}
 * @param logContext {Object}
 * @param logPrefix {String}
 * @param [messagePrefix] {String}
 */
logger.logError = function logError(err, logContext, logPrefix, messagePrefix) {
  const logCtx = _.cloneDeep(logContext);
  logCtx.err = err;
  if (messagePrefix) {
    return logger.error(logCtx, `${logPrefix}:${err.name} ${messagePrefix} ${err.message}`);
  }
  return logger.error(logCtx, `${logPrefix}:${err.name} ${err.message}`);
};

module.exports = logger;