Everything You Wanted to Know About Logging

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TO KNOW EVERYTHING YOU WANTED ABOUT LOGGING

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WHY, HELLO THERE CHARLIE HERE

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WELCOME TO LOGGING. I WILL BE YOUR GUIDE

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SENIOR DIR. UX PLATFORM @ (0%"%%: @INDEXZERO GITHUB TWITTER WELCOME TO LOGGING. I WILL BE YOUR GUIDE

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WINSTON FOR NODE@4 MODERNIZING An EXercise in Open source, STREAMS, ES6, And KEEPING CODE ALIVE.

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TL;DR?

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TL;DR? LOOKING FOR THE TL;DR?

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WINSTON IS FROM 2010

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WINSTON IS FROM 2010 ACTUALLY JANUARY, 17 2011 BUT STARTED IN 2010

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...BACK THEN ...

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...BACK THEN ... THINGS WERE A LITTLE DIFFERENT

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NEVER BEEN ONE OF THESE 2011 BE LIKE…

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NO STREAMS API 2011 BE LIKE…

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ES5 IS STILL NEW 2011 BE LIKE…

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LIMITED CODE COVERAGE TOOLS 2011 BE LIKE…

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NOT ALL THAT BAD THO

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BACK TO THE FUTURE

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BACK TO THE FUTURE BY 2015 THINGS WERE MOVING ALONG…

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[email protected] SMALL BREAKS

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[email protected] BIGGER BREAKS

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[email protected] BREAK TO NEW APIS

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OPEN SOURCE

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OPEN SOURCE IT CAN BE DONE!

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in 2015 WINSTON HAD ABOUT 2.6 MILLION MONTHLY DOWNLOADS BUNYAN: ~0.56M

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Open Source is what happens when you’re   busy making other plans - IF JOHN LENNON WROTE SOFTWARE

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FAST FORWARD TO 2017

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2017 Downloads 2017 download comparison

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2017 Downloads 2017 download comparison winston continues to “win”

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BUT JUST WHY EXACTLY?

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CONSIDER THE API

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SHAKESPEARE’S “LOGGING”

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SHAKESPEARE’S “LOGGING” A PLAY IN 5 ACTS

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ACT ONE Levels

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ACT ONE Levels WHERE IN RFC5424 EMERGES VICTORIOUS IN THE END. ALWAYS.

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ACT ONE Levels WHERE IN RFC5424 EMERGES VICTORIOUS IN THE END. ALWAYS.

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ACT TWO Log Shipping

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ACT TWO Log Shipping WINSTON TRANSPORTS BUNYAN STREAMS LOG4JS-NODE APPENDERS

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STREAMS ALL THE THINGS

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STREAMS ALL THE THINGS In winston@3 a “transport” is simply nothing more than a Node.js WritableStream

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ACT THREE Querying & Streaming

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ACT THREE Querying & Streaming KIBANA. OR SOME SASS YOU PAY FOR. BESPOKE ENDS TRAGICALLY – USUALLY.

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ACT FOUR Serialization & Filtering

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ACT FOUR Serialization & Filtering JSON, COLORING, PRETTYPRINTING, ALIGNMENT, CUSTOM FORMATTING, TIMESTAMPS & SO SO MUCH MORE

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ACT FIVE Defaults & Mutation

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ACT FIVE Defaults & Mutation BUNYAN SERIALIZERS MORGAN TOKENS LOG4JS-NODE PATTERNS

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OPTIONS HELL IS

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OPTIONS HELL IS AT LEAST THE FIFTH CIRCLE OF PROGRAMMING HELL

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COMMON.LOG

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COMMON.LOG

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COMMON.LOG

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COMMON.LOG

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COMMON.LOG THIS IS OPTIONS HELL

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INTRODUCE FORMATS

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INTRODUCE FORMATS

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INTRODUCE FORMATS

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INTRODUCE FORMATS

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INTRODUCE FORMATS A LA CARTE. PAY FOR WHAT YOU USE.

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ON PERFORMANCE AND API DESIGN

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IT TURNS OUT

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IT TURNS OUT PERFORMANCE IS SIMPLY NOT EVERYTHING

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WANT THE DEVELOPERS THE HOMER CAR

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FORMATS YOUR OWN DEFINE

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FORMATS YOUR OWN DEFINE

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FORMATS YOUR OWN DEFINE

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FORMATS YOUR OWN DEFINE

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EASY AS IT LOOKS NOT AS

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ES6 SYMBOLS

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ES6 SYMBOLS SYMBOLS! EVERYWHERE

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ES6 SYMBOLS

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ES6 SYMBOLS LESS MEMORY OVERHEAD NON-ENUMERABLE / SEMI-PRIVATE WILL NOT APPEAR IN DEFAULT JSON.STRINGIFY

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BACK TO HELL!

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BACK TO HELL! COUPLING IS   THE NINTH CIRCLE OF PROGRAMMING HELL

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DECOUPLED SHARED FUNCTIONALITY

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DECOUPLED SHARED FUNCTIONALITY require(‘winston-transport’); require(‘abstract-winston-transport’);

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DECOUPLED SHARED FUNCTIONALITY require(‘winston-transport’); require(‘abstract-winston-transport’);

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DECOUPLED SHARED FUNCTIONALITY require(‘winston-transport’); require(‘abstract-winston-transport’); require(‘logform’)

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BACKWARDS COMPATABILITY

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BACKWARDS COMPATABILITY require(‘winston-compat’); common.log winston.transports.Transport Old vows-based test macros