S3Logger

A simple, naive application logging utility that can integrate / write to a file in an AWS S3 bucket. This wasn't meant to replace a full-blown Winston, Bunyon, etc logger, but a quick drop-in for people who want to dump their log files to a file in an Amazon S3 bucket somewhere.

Installation

npm install s3logger --save

Usage

NOTE: This package uses async / await natively. Be sure that your version of NodeJS supports this without transpiling.

Basic

const {S3Logger, levels} = require('s3logger');

const logger = new S3Logger({
    /* Init options here */
});

logger.info('Hi, I am a message that will get written to both the console AND S3!');

logger.log(levels.DEBUG, 'I am using the explicit log function and specifying a log-level');

Options

{
    logFile = 'app.log',
    noConsole = false,
    secretAccessKey,
    accessKeyId,
    region = 'us-west-1',
    bucket,
    level,
}

• logFile - String - Name of the log file that will be written to S3. Defaults to app.log.
• noConsole - Boolean - Whether or not the logger should ignore writing out to the console. Defaults to false.
• secretAccessKey - String - AWS IAM SecretAccessKey. It is highly recommend you create a dedicated IAM role to allow your cloud instances to read / write to S3. If you are developing locally, however, use secretAccessKey, combined with accessKeyId (below) to allow for testing integration with S3
• accessKeyId - String - AWS IAM Access Key ID. Used in conjunction with the secretAccessKey. Please see note (above) for recommendations.
• region - String - AWS region to use when reading / writing files. Defaults to us-west-1. Can be overwritten on the instance of S3Logger that you have initialized with new. See example below:

const logger = new require('s3logger).S3Logger({
    /* Options */
});
logger.region = 'us-east-1';

• bucket - String - AWS S3 bucket where log file will be read / written. Can be overwritten on the instance of S3Logger that you have initialized with new. See example below:

const logger = new require('s3logger).S3Logger({
    /* Options */
});
logger.bucket = 'MyCoolBucket';

• level - Number - Which type of severity will get logged. Supports a subset of standard npm logging variables (see below):

ERROR = 0
WARN = 1
INFO = 2
DEBUG = 3