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Solace Event Topology
An event-driven architecture design featuring Solace PubSub+ creating a distributed Event Mesh. It illustrates how loosely coupled services publish events to topics, which are dynamically routed to consuming subscriber queues.
graph LR
subgraph Publishers[Event Publishers]
Order[Order Service]
Billing[Billing Service]
User[User Service]
end
subgraph Mesh[Solace PubSub+ Event Mesh]
Broker1((Broker Node 1))
Broker2((Broker Node 2))
Broker3((Broker Node 3))
Broker1 --- Broker2
Broker2 --- Broker3
Broker3 --- Broker1
Topic1[[orders/created]]
Topic2[[billing/invoice/generated]]
Broker1 -.-> Topic1
Broker2 -.-> Topic2
end
subgraph Subscribers[Event Subscribers]
Q1[(Order Queue)]
Q2[(Audit Queue)]
Q3[(Notification Queue)]
OrderSync[ERP Sync App]
AuditApp[Audit Logger]
NotifApp[Email Service]
end
Order -->|Publish| Topic1
Billing -->|Publish| Topic2
Topic1 ==>|Route to Sub| Q1
Topic1 ==>|Route to Sub| Q2
Topic2 ==>|Route to Sub| Q3
Q1 -->|Consume| OrderSync
Q2 -->|Consume| AuditApp
Q3 -->|Consume| NotifApp
classDef pub fill:#eff6ff,stroke:#3b82f6,stroke-width:2px,color:#1d4ed8;
classDef sub fill:#f0fdf4,stroke:#22c55e,stroke-width:2px,color:#15803d;
classDef mesh fill:#fef2f2,stroke:#ef4444,stroke-width:2px,color:#b91c1c;
class Publishers pub;
class Subscribers sub;
class Mesh mesh;