GCF Logger

This is a reusable logger for Google Cloud Functions that includes a traceable ID

Installation

npm install gcf-logger
yarn add gcf-logger

Usage

Node

const logger = require("gcf-logger");

// instantiate: assume ENV var API_KEY exists
const log = new logger.Logger({
    name: "my-feature",
    level: 2
});

// using
log.info(`Something happened`);

Typescript

import {ILogger, Logger} from "gcf-logger";

// instantiate: with just name
const log: ILogger = new Logger({
    name: "my-feature"
});

// pass in reference (requestId) for traceability
log.init({requestId: 'http-12345'});

// using
log.info(`Something happened`);

Output

The output is sent to stdout as a stringified JSON object, making it easier to consume in document storage for later analysis.

{
    ts: '2018-01-01T08:32:30.858Z', 
    msg: 'Something happened', 
    ref: 'http-12345', 
    type: 'info', 
    level: 2, 
    host: 'localhost', 
    pid: 12345
}

Testing

npm test
npm run coverage

Build (compiles Typescript to JS)

npm run build