Incident changelog

Changelog History

• v0.6.0 Changes

  December 09, 2020

  ➕ Added

  Library

  • 🖐 Handle race conditions and concurrent scenarios during command execution;
  • ➕ Add EventStoreSupervisor to supervise EventStore adapters and LockManager;
  • ➕ Add AggregateLock schema to hold lock data;

  Bank Example Application

  • ➕ Add integration tests that exercise concurrency and race conditions;

  🔄 Changed

  Library

  • 🔄 Change how Incident is configured and added in the application supervision tree;
  • ⚡️ Update mix incident.postgres.init to include migration for aggregate_locks table;
  • 📚 Update documentation regarding library configuration and usage;
  • ⚡️ Update package dependencies;

  Bank Example Application

  • 📚 Update documentation regarding library configuration and usage;

• v0.5.1 Changes

  November 03, 2020

  🔄 Changed

  Library

  • ➕ Add id for the in memory event data structure;
  • Sort events by id in the Event Store Postgres and InMemory adapters to ensure proper event ordering;
  • ✂ Removed updated_at column from events table in the mix incident.postgres.init task;
  • 📚 Update documentation;
  • ⚡️ Update package dependencies;

  Bank Example Application

  • ⚡️ Update events migration to reflect changes in the mix incident.postgres.init task;

• v0.5.0 Changes

  October 15, 2020

  ➕ Added

  Library

  • ➕ Add get/2 for Projection Store InMemory and Postgres adapters to fetch a projection for a specific aggregate;

  Bank Example Application

  • ➕ Add Transfer, TransferCommandhandler, TransferState and TransferEventHandler to demonstrate an example of aggregate root use-case;
  • ➕ Add examples of events that can generate specific commands in TransferEventHandler to demonstrate sequence of Event -> Command -> Event use-cases;

  🔄 Changed

  Library

  • The CommandHandler now returns {:ok, persisted_event} instead of just :ok, allowing event 🖐 handlers to compose a new command and call the CommandHandler based on the previous event. This allows a series of Event -> Command -> Event to be built;
  • Set Elixir minimum version to 1.8;
  • ⚡️ Update package dependencies;

  Bank Example Application

  • Bank.EventHandler was renamed to Bank.BankAccountEventHandler to make it clear that this 🖐 handler is only for the BankAccount aggregate events as now we have more than one aggregate;
  • Set Elixir minimum version to 1.8;

• v0.4.1 Changes

  June 18, 2020

  🔄 Changed

  Library

  • ⚡️ Update package dependencies;

• v0.4.0 Changes

  October 06, 2019

  ➕ Added

  Library

  • ➕ Add mix incident.postgres.init mix task to set up Postgres as Event Store storage;

  Bank Example Application

  • ➕ Add WithdrawMoney command, MoneyWithdrawn event, and business logic;

  🔄 Changed

  Library

  • ⚡️ Update package dependencies;

• v0.3.0 Changes

  September 14, 2019

  ➕ Added

  Library

  • ➕ Add Postgres adapter for events;
  • ➕ Add Postgres adapter for projections;
  • Set up continuous integration with Circle CI;

  Bank Example Application

  • ➕ Add integration tests for InMemoryAdapter;
  • ➕ Add integration tests for PostgresAdapter;

  🔄 Changed

  Library

  • Specify separate event data structures for InMemoryAdapter and PostgresAdapter;

  Bank Example Application

  • 0️⃣ Use PostgresAdapter as default;
  • ⚡️ Update readme file;

• v0.2.0 Changes

  July 16, 2019

  ➕ Added

  Library

  • Define the Incident.Command behaviour to specify the command interface;
  • Define the Incident.CommandHandler macro for command handlers;
  • Define the Incident.EventHandler behaviour to specify the event handler interface;
  • 👉 Use Ecto.Schema event data structure;
  • 👉 Use Ecto.Schema for command data structure;

  🔄 Changed

  Library

  • 🚚 Move event persistency from aggregates to command handlers;
  • Validate commands in the command handlers using command implementation;

• v0.1.0 Changes

  June 19, 2019

  Library

  • 🎉 Initial release with base functionality with In Memory adapters;
  • 🎉 Initial release for the bank example application;