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Creating event bus adapters

Implementing your custom IEventBusAdapter​

In order to create an adapter you need to implement the IEventBusAdapter contract.

Testing your custom IEventBusAdapter​

We provide a complete test suite to verify your event bus adapter implementation. Simply use the eventBusAdapterTestSuite function:

  • Preconfigured Vitest test cases
  • Standardized event bus behavior validation
  • Common edge case coverage

Usage example:

// filename: MyEventBusAdapter.test.ts

import { describe, test, beforeEach, expect } from "vitest";
import { eventBusAdapterTestSuite } from "@daiso-tech/core/event-bus/test-utilities";
import { MyEventBusAdapter } from "./MyEventBusAdapter.js";

describe("class: MyEventBusAdapter", () => {
    eventBusAdapterTestSuite({
        createAdapter: () => new MyEventBusAdapter(),
        test,
        beforeEach,
        expect,
        describe,
    });
});

Implementing your custom IEventBus class​

In some cases, you may need to implement a custom EventBus class to optimize performance for your specific technology stack. You can then directly implement the IEventBus contract.

Testing your custom IEventBus class​

We provide a complete test suite to verify your custom event bus class implementation. Simply use the eventBusTestSuite function:

  • Preconfigured Vitest test cases
  • Standardized event bus behavior validation
  • Common edge case coverage

Usage example:

// filename: MyEventBus.test.ts

import { describe, test, beforeEach, expect } from "vitest";
import { eventBusTestSuite } from "@daiso-tech/core/event-bus/test-utilities";
import { MyEventBus } from "./MyEventBus.js";

describe("class: EventBus", () => {
    eventBusTestSuite({
        test,
        expect,
        describe,
        beforeEach,
        createEventBus: () =>
            new MyEventBus(),
    });
});