prooph meetup 2016
prooph components
CQRS and Event Sourcing packages for PHP
Supported Web Frameworks
or any other framework/codebase supporting container-interop & interop-config
prooph team
Community
Focused on digital solutions based on modern web technologies like PHP7, prooph components, Node.js, TypeScript, react/riot, Docker, Cloud Services
A software vendor for web-based solutions. Focused on content management solutions over the Insecia Cloud. SaaS and IaaS. Modern Stack with PHP7, OpenStack, Kubernetes, Docker
Meetup Sponsors
Alexander Miertsch
Founder and CEO of prooph software GmbH
Founder and core contributor prooph components
contact@prooph.de
Christof Heinzel
Founder and CEO of Insecia GmbH
Passionate PHP developer and Cloud Computing lover
Agenda
Event Sourcing case study by @codeliner
time to grab a beer
Hot new features in prooph by @prolic
Networking
Event Sourcing
Introduction of the problem space
Event Sourcing for enterprise application integration (EAI)
Manage business processes with event sourcing
Monitor long-running business processes
CQRS for high performance microservices
A Case Study
The Problem Space
Simplified version of a true story
The Problem Space
Bob runs a successful fashion business
New Strategy: Simplify and modernize the sales process
The Problem Space
Bettina is one of the many account managers in Bob's company
The Problem Space
Petra is a shop owner and one of 50.000 business customers of Bob
Bettina is one of the many account managers in Bob's company
The Problem Space
John is part of the customer service team in Bob's company
Petra is a shop owner and one of 50.000 business customers of Bob
Bettina is one of the many account managers in Bob's company
The Problem Space
Strategy: Simplify and modernize the sales process
requires negotiation of new contracts
The Problem Space
Contract App
The Contract App
- Supports account manager during contract negotiation
- Provides customer search and filter capabilities
- Dynamic multistep data form
- In-browser/realtime validation of complex decision rules
- Offline functionality
Event Sourcing
Introduction of the problem space
Event Sourcing for enterprise application integration (EAI)
Manage business processes with event sourcing
Monitor long-running business processes
CQRS for high performance microservices
A Case Study
EAI
Bettina needs to find Petra out of 50.000 customers in the Contract App
EAI with Event Sourcing
Customer data is in a legacy system
Some Customer Events ...
Customer Import Stream
Some Customer Events ...
Some Customer Events ...
EAI with Event Sourcing
Customer data is in a legacy system
Some Customer Events ...
Customer Import Stream
Petra's shop was added
Some Customer Events ...
Petra's shop was updated
Nightly projection into customer search
Nightly XML export
Some Customer Events ...
EAI with Event Sourcing
- All data + history available
useful for future requirements - Data blob stored in event payload
No mapping required during import - Import API is dead simple
Minimal integration work - Bonus
Audit log for free
Some Customer Events ...
Customer Import Stream
Petra's shop was added
Some Customer Events ...
Petra's shop was updated
Some Customer Events ...
Customer Projections
- No heavy ORM required, because customer data is read only in the Contract App
- Read model is recreated every night to reflect latest changes
- Mapping of legacy structure is done when building the read model
- New features based on so far unused data can be added without new import
Event Sourcing
Introduction of the problem space
Event Sourcing for enterprise application integration (EAI)
Manage business processes with event sourcing
Monitor long-running business processes
CQRS for high performance microservices
A Case Study
Focus on Behavior
Contract Stream
Appointment was made
Some Contract Events ...
Special conditions were requested
Some Contract Events ...
Send mail to John
Focus on Behavior
Contract Stream
Special conditions were requested
Some Contract Events ...
Special conditions were accepted
Some Contract Events ...
Send to external signing service
Event Sourcing
Introduction of the problem space
Event Sourcing for enterprise application integration (EAI)
Manage business processes with event sourcing
Monitor long-running business processes
CQRS for high performance microservices
A Case Study
Monitor External Service
Contract Stream
Contract signing was started
Some Contract Events ...
Contract was internally signed
Some Contract Events ...
Contract was externally signed
Event Sourcing
Introduction of the problem space
Event Sourcing for enterprise application integration (EAI)
Manage business processes with event sourcing
Monitor long-running business processes
CQRS for high performance microservices
A Case Study
Projections for Speed
A B2B portal also needs customer data and Contract App has a http API, but...
... requires other structure of the data and filtering is based on other properties
... http API would have to handle lot of additional traffic
New Consumer
Dedicated Projection
Same customer event stream projected into a document store
Accessed by a microservice
Can be scaled independently of Contract App