codesnips

decoupling

php 
<?php

namespace App\Event;

use Symfony\Contracts\EventDispatcher\Event;

Symfony: Send a Welcome Email Asynchronously with Messenger and an Event Subscriber

symfony messenger async
by codesnips 4 tabs
typescript 
export type EventMap = Record<string, unknown[]>;

type Listener<Args extends unknown[]> = (...args: Args) => void;

export class TypedEmitter<Events extends EventMap> {
  private listeners = new Map<keyof Events, Set<Listener<any>>>();

Type-Safe Event Emitter With Strongly-Typed Listener Payloads in TypeScript

typescript events event-emitter
by codesnips 3 tabs
python 
from abc import ABC, abstractmethod


class UnknownChannel(Exception):
    pass

Pluggable Notification Channels With a Template Registry in Python

notifications design-patterns strategy-pattern
by codesnips 3 tabs
java 
package com.shop.orders.events;

import java.math.BigDecimal;
import java.time.Instant;

public final class OrderPlaced {

Publishing and Consuming an OrderPlaced Domain Event with Spring's ApplicationEventPublisher

java spring-boot spring
by codesnips 4 tabs
python 
from dataclasses import dataclass, field
from datetime import datetime, timezone
from decimal import Decimal


def _now():

Synchronous Domain Event Bus with a Registry-Based Publisher in Python

domain-events event-bus pubsub
by codesnips 3 tabs
ruby 
module DomainEvents
  class Registry
    def initialize
      @subscribers = Hash.new { |h, k| h[k] = [] }
    end

Avoid Callback Chains: Use Domain Events (In-App)

rails architecture domain-events
by codesnips 4 tabs
java 
package com.shop.orders.events;

import java.math.BigDecimal;
import java.time.Instant;

public record OrderPlacedEvent(

Transactional Domain Events With Spring's ApplicationEventPublisher and @TransactionalEventListener

spring spring-boot domain-events
by codesnips 4 tabs
php 
<?php

namespace App\Http\Controllers\Auth;

use App\Events\UserRegistered;
use App\Http\Controllers\Controller;

Dispatch a Queued Welcome Email via Laravel Event Listeners on Registration

laravel events listeners
by codesnips 4 tabs