Samples & Examples

Samples & Examples

The tonyx/Sharpino repository contains a collection of sample projects demonstrating specific features, configurations, and use cases.

Here is an overview of the key samples:

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Sharpino.Sample.7: Serialization Comparison

• Purpose: Demonstrates how to configure and run the library using JSON vs. Binary serialization on PostgreSQL.
• Key Feature: Compares identical domain models using FsPickler to serialize to text/plain-text columns versus binary fields in the event store.

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Sharpino.Sample.8: Transport Tycoon Domain

• Purpose: Implements the Transport Tycoon scenario (vehicles, routes, hubs) as an event-sourced domain.
• Key Feature: Focuses on clean domain logic using aggregate snapshots, command execution, and handling state transitions functionally.

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Sharpino.Sample.9: Decision Boundaries & Soft Delete

• Purpose: Demonstrates cross-aggregate constraints and conditional soft delete.
• Key Features:
  • Employs runThreeAggregateCommandsMdAsync2 passing a cross-aggregate constraint lambda to lock external streams.
  • Implements soft delete with a predicate ensuring that an aggregate can only be deleted if the number of references to it in other aggregates is zero.

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Sharpino.Sample.19: Distributed Caching with FusionCache

• Purpose: Scales the application cache horizontally.
• Key Features:
  • Integrated with ZiggyCreatures.FusionCache.
  • Configures an Azure SQL Server as a shared Level 2 (L2) distributed cache.
  • Utilizes Azure Message Bus to propagate invalidation messages.

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Sharpino.Sample.27: L2 Cache with LISTEN/NOTIFY

• Purpose: Scaled caching using only PostgreSQL.
• Key Features:
  • Uses PostgreSQL as the L2 cache backplane.
  • broadcasts eviction and synchronization notifications between L1 and L2 caches using PostgreSQL LISTEN and NOTIFY commands.