Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Event Sourcing in Laravel (Full Stack Ghent)
Search
Freek Van der Herten
April 10, 2019
Programming
0
500
Event Sourcing in Laravel (Full Stack Ghent)
Freek Van der Herten
April 10, 2019
Tweet
Share
More Decks by Freek Van der Herten
See All by Freek Van der Herten
Uncharted packages (Laravel Live Denmark)
freekmurze
0
210
I shall define this only once
freekmurze
0
410
An Introduction to Snapshot testing
freekmurze
0
500
Event Sourcing In Laravel
freekmurze
0
250
Building a realtime dashboard with Laravel Livewire (PHPKonf)
freekmurze
0
820
A tour behind the scenes of Oh Dear (PHP Benelux)
freekmurze
2
860
A practical look at multitenancy in Laravel
freekmurze
1
360
A practical look at multitenancy in Laravel (Laracon US)
freekmurze
0
730
Highlights Flare codebase (Laracon online)
freekmurze
0
520
Other Decks in Programming
See All in Programming
TanStack DB ~状態管理の新しい考え方~
bmthd
2
330
AI OCR API on Lambdaを Datadogで可視化してみた
nealle
0
180
Portapad紹介プレゼンテーション
gotoumakakeru
1
130
🔨 小さなビルドシステムを作る
momeemt
1
490
20250808_AIAgent勉強会_ClaudeCodeデータ分析の実運用〜競馬を題材に回収率100%の先を目指すメソッドとは〜
kkakeru
0
200
Kiroの仕様駆動開発から見えてきたAIコーディングとの正しい付き合い方
clshinji
1
140
CSC305 Summer Lecture 12
javiergs
PRO
0
110
Scale out your Claude Code ~自社専用Agentで10xする開発プロセス~
yukukotani
9
2.6k
オープンセミナー2025@広島LT技術ブログを続けるには
satoshi256kbyte
0
120
Laravel Boost 超入門
fire_arlo
1
120
一人でAIプロダクトを作るための工夫 〜技術選定・開発プロセス編〜 / I want AI to work harder
rkaga
13
2.8k
Terraform やるなら公式スタイルガイドを読もう 〜重要項目 10選〜
hiyanger
13
3.2k
Featured
See All Featured
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
A designer walks into a library…
pauljervisheath
207
24k
It's Worth the Effort
3n
187
28k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
248
1.3M
Imperfection Machines: The Place of Print at Facebook
scottboms
268
13k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
50
5.5k
Bash Introduction
62gerente
614
210k
Building a Scalable Design System with Sketch
lauravandoore
462
33k
Code Reviewing Like a Champion
maltzj
525
40k
Building an army of robots
kneath
306
46k
How GitHub (no longer) Works
holman
315
140k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
23
1.4k
Transcript
Getting started with event sourcing in Laravel
About me Freek Van der Herten Partner & developer at
Spatie @freekmurze murze.be ohdear.app
Spatie Laravel, front-end development Since 2003 9 awesome human beings
Open Source Software
We create a lot of it ± 200 packages on
Packagist ± 2,000,000 downloads a month ± 30,000,000 total downloads All Postcardware!
Highlights Popular laravel-backup laravel-medialibrary laravel-permission New laravel-query-builder laravel-blade-x
https://spatie.be/open-source
https://spatie.be/open-source/postcards
Let's talk about event sourcing
Talk overview Theory Projectors demo Aggregates demo
Theory
Traditional application Write data in database An update means overwriting
the old data The old data cannot be accessed anymore
APPLICATION DATABASE TABLE value X
APPLICATION DATABASE TABLE value X value Y
Event Sourced Application The application will fire off events Events
will get written in a dedicated store Events are passed to consumers that create projections Aggregate, Aggregate Root...
APP EVENTS Event Event 1
APP EVENTS Event Event 1 Event 2
APP EVENTS Event Event 1 Event 2 Event 3
APP CONSUMER EVENTS PROJECTION Event Event 1 Event 2 Event
3
APP CONSUMER CONSUMER 2 EVENTS PROJECTION Event Event 1 Event
2 Event 3 ANOTHER PROJECTION
APP CONSUMER CONSUMER 2 EVENTS PROJECTION Event Event 1 Event
2 Event 3 ANOTHER PROJECTION
APP CONSUMER CONSUMER 2 EVENTS PROJECTION Event Event 1 Event
2 Event 3 Event 4 ANOTHER PROJECTION
Event Sourced Application Auditing requirements Extra reports needed Recording the
unhappy path There is some setup required
Laravel Event Projector
Laravel Event Projector Package made by Spatie Aggregates, Projectors &
Reactors Beautifully integrated into Laravel Easy to get started with
https://docs.spatie.be/laravel-event-projector
Demo
Aggregates
None
None
None
None
None
None
Demo
In closing
Summary Laravel Event Projector Easy to use package to get
started with event sourcing Projectors Replay capabilities Aggregates
Writes are harder, reads are easier
Event sourcing makes the easy things harder… …and the harder
things easier — Frank De Jonge
Larabank github.com/spatie/larabank-traditional github.com/spatie/larabank-event-projector github.com/spatie/larabank-event-projector-aggregates github.com/spatie/larabank-eventsauce
Resources kickstarter.engineering/event-sourcing-made-simple-4a2625113224 github.com/spatie/laravel-event-projector github.com/eventsaucephp/eventsauce github.com/prooph
Thank you! speakerdeck.com/freekmurze/event-sourcing-full-stack-ghent spatie.be/open-source murze.be ohdear.app