The relationship between them is implicit, an idea that only exists in the mind of the programmers. It should be explicit, a part of the language, and existing for all time. Counter and doubled should be bound.
The relationship between them is implicit, an idea that only exists in the mind of the programmers. It should be explicit, a part of the language, and existing for all time. Counter and Double should be bound. = the Destiny Operator
The relationship between them is implicit, an idea that only exists in the mind of the programmers. It should be explicit, a part of the language, and existing for all time. Counter and Double should be bound. = the Destiny Operator 1 map(x => x*2) 2 3 6
The relationship between them is implicit, an idea that only exists in the mind of the programmers. It should be explicit, a part of the language, and existing for all time. Counter and Double should be bound. = the Destiny Operator
The relationship between them is implicit, an idea that only exists in the mind of the programmers. It should be explicit, a part of the language, and existing for all time. Counter and Double should be bound. = the Destiny Operator
Stream Caller Receiver Caller Receiver propagate change observe change trigger change directly The reactive programming paradigm is based on asynchronous streams which propagate change. This differs from imperative programming, where statements are used to change a program’s state.
YAMS — Yet Another Mail Service NEW 2021-04-11 — An important Email 2021-04-09 — Another important Email 2021-04-08 — Do you want to join my network? 2021-04-05 — Nigerian prince wants to send you money X your inbox contains 4 mails 1 NEW Mail Reload Controller Rest Client update UI Element update UI update UI
YAMS — Yet Another Mail Service NEW 2021-04-11 — An important Email 2021-04-09 — Another important Email 2021-04-08 — Do you want to join my network? 2021-04-05 — Nigerian prince wants to send you money X your inbox contains 4 mails 1 NEW Mail Reload Websocket Client Email Email count() count() collect() filter() subscribe Email map()
YAMS — Yet Another Mail Service NEW 2021-04-11 — Hello YA!VACONF! 👋 2021-04-09 — Another important Email 2021-04-08 — Do you want to join my network? 2021-04-05 — Nigerian prince wants to send you money X your inbox contains 5 mails 2 NEW Mail Websocket Client Email Email count() count() collect() filter() subscribe Email NEW 2021-04-11 — An important Email map()
Internet has 4.7 Billion users. Facbook has 2.8 Billion users. Youtube has 2.1 Billion users. 2010 2020 The Internet has 1.4 Billion users. A single website may now handle twice as much traffic as the entire internet did a decade ago.
We support Back-Pressure Stream Provider Consumer events are stored until consumed Stream Provider Consumer A Consumer C Consumer B scaling out consumers We can scale-out by Location Transparency
Microservice A Microservice B Microservice C Web Application Microservice C with high latency First Generation MicroServices Synchronous and without Backpressure Support
Microservice A Microservice B Microservice C Web Application Microservice C with high latency Second Generation MicroServices Partially asynchronous with Queues Queue isolates bottleneck Queue
Web Application Stream Microservice usually Backend-For-Frontend (BFF) Microservice A Microservice B Microservice C Third Generation MicroServices Fully asynchronous & stream-centric
Events as the System State Stream of Transactions Max sent David 100€ Max sent Maria 70€ David sent Maria 25€ User Balance David + 75 € Max - 170 € Maria + 95 € ➡ Event Sourcing 100% reliable audit log.
Web Application Eventstore Microservice usually Backend-For-Frontend (BFF) Lambda A Lambda B Lambda C Forth Generation MicroServices EventSourced with FaaS
GraphQL Step 1 Step 2 Step 2 Car Brand Build Year Car Model Insurance Agent Customer ✅ This Is Correct Alfra Romeo Giulia, 2020 110PS, Diesel Step 1 Step 2 Step 2 Coverage 200 € 🏁 Sign Digital Do you accept 70% coverage for 200€? Lambda A Lambda B Lambda C Eventstore GraphQL Customers expect realtime syncronisation between channels. car brand has changed
GraphQL Step 1 Step 2 Step 2 Car Brand Build Year Car Model Lambda A Insurance Agent Lambda B Lambda C Eventstore GraphQL Customer ✅ This Is Correct Alfra Romeo Giulia, 2020 110PS, Diesel Step 1 Step 2 Step 2 Coverage 250 € 🏁 Sign Digital Do you accept full coverage for 250€?
Microservice A Web Banking Microservice B Microservice C Stream GraphQL Projection Projections 1⃣ Projections act as read-models for a specific client. 2⃣ They subscribe to events & hydrate the projection. 3⃣ The client only reads from the projection.
Microservice A Web Banking Microservice B Microservice C Stream GraphQL Projection Projections 1⃣ Projections act as read-models for a specific client. 2⃣ They subscribe to events & hydrate the projection. 3⃣ The client only reads from the projection.
GraphQL Mobile Client Projection Microservice A Web Banking Microservice B Microservice C Eventstore GraphQL Projection Projections 1⃣ Projections act as read-models for a specific client. 2⃣ They subscribe to events & hydrate the projection. 3⃣ The client only reads from the projection. Show balance & last transactions: 93%
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