Rethinking Reactive Architectures with GraphQL

How can an app stay 93% online even when the backend fails? Discover the power of reactive architectures and GraphQL subscriptions.

#1about 4 minutes

Defining reactivity and asynchronous data streams

Reactivity is defined as programming with asynchronous data streams, which are data containers that exist in plural space and asynchronous time.

#2about 8 minutes

Exploring the core principles of reactive programming

Reactive programming makes the relationship between variables explicit using streams, shifting from a pull-based design to a push-based design for automatic updates.

#3about 8 minutes

Applying reactive principles to system architecture

The Reactive Manifesto guides building responsive systems by achieving elasticity and resilience through a message-driven architecture that supports back pressure and location transparency.

#4about 7 minutes

Tracing the evolution of microservices toward reactivity

Microservice architectures evolved from synchronous pull-based models to fully asynchronous, stream-centric systems using event sourcing and functions-as-a-service.

#5about 2 minutes

Using GraphQL subscriptions for end-to-end streaming

GraphQL subscriptions provide the missing piece for end-to-end reactivity by enabling push-based data streaming from the server to the client.

#6about 4 minutes

Building a collaborative real-time insurance portal

A reactive architecture enables real-time synchronization between an insurance agent's and a customer's UI, allowing for seamless collaboration.

#7about 4 minutes

Achieving resilience in mobile banking with projections

Projections, or specialized read models hydrated from an event store, allow read-heavy features like viewing balances to remain available even when backend services fail.

#8about 1 minute

Weighing the benefits and complexity of reactive systems

While reactive architectures offer powerful options like resilience and real-time capabilities, they introduce significant complexity and should be adopted judiciously.