Laravel AMQP Package

A detailed AMQP wrapper for Laravel and Lumen to publish and consume messages, especially from RabbitMQ. This package provides full support for RabbitMQ features including RPC patterns, management operations, message properties, and more.

Features

Core Features

Advanced queue configuration
Easy message publishing to queues
Flexible queue consumption with useful options
Support for all RabbitMQ exchange types (topic, direct, fanout, headers)
Full AMQP message properties support

Version 3.1.0+ New Features

RPC Pattern Support - Built-in request-response patterns with rpc() and reply() methods
Queue Management - Programmatic control (purge, delete, unbind)
Management HTTP API - Full integration with RabbitMQ Management API
Policy Management - Create, update, and delete policies programmatically
Feature Flags - Query RabbitMQ feature flags
Enhanced Message Properties - Full support for priority, correlation_id, headers, etc.
Listen Method - Auto-create queues and bind to multiple routing keys
Connection Configuration Helper - Easy access to connection configs

Advanced Features

Publisher Confirms - Guaranteed message delivery
Consumer Prefetch (QoS) - Rate limiting and flow control
Queue Types - Classic, Quorum, and Stream queues
Dead Letter Exchanges - Message routing for failed messages
Advanced retry & dead-letter abstractions - Declarative RetryPolicy + DeadLetterTopology + RetryHandler with fixed/exponential backoff and auto-routing to DLQ when retries exhaust (see Retry & DLQ Abstractions)
Delayed messaging & publish backoff - publishLater() / publishTypedLater() with TTL+DLX or rabbitmq-delayed-message-exchange plugin strategies, plus PublishBackoff for publisher-side transient retries (see Delayed Messaging)
Typed message contracts - MessageContractInterface, TypedMessage base class, publishTyped() / consumeTyped() with pluggable MessageSerializerInterface (JSON by default) (see Typed Messaging)
JSON schema validation - Zero-dependency SchemaValidator (Draft 7 subset) validates payloads against contract schema() definitions (see JSON Schema Validation)
Message Priority - Priority-based message processing
TTL Support - Message and queue expiration
Lazy Queues - Disk-based message storage
Alternate Exchange - Unroutable message handling
Native Laravel Queue integration - Use amqp as a config/queue.php driver with queue:work
Artisan commands - amqp:work (with --retry/--contract/--validate-schema), amqp:consume, amqp:listen, amqp:publish (with --delay-ms), and amqp:purge
Exchange & topology builders - ExchangeTopology declarative exchange + queue bindings with declareExchangeTopology() (see Production Infrastructure)
Quorum & priority queue profiles - QueueProfile::quorum(), priority(), and quorumWithPriority() presets for queue_properties (see Production Infrastructure)
Resilient connections & pooling - ResilientConnectionManager auto-reconnect with heartbeat staleness checks; ConnectionPool for persistent worker channels (see Production Infrastructure)
Distributed tracing - W3C traceparent propagation via TracePropagatorInterface (OTel bridge via CallbackTracePropagator); enable with propagate_trace on publish/consume (see Production Infrastructure)
Correlation ID propagation - CorrelationContext with propagate_correlation on publish/consume (see Production Infrastructure)
Consumer lifecycle hooks - ConsumerLifecycle graceful shutdown, signal handlers, and consumeWithLifecycle() (see Production Infrastructure)
SAGA workflow helpers - Saga step/compensation orchestrator with SagaResult reporting (see SAGA, Events, Middleware & Testing)
Laravel events & consume middleware - MessagePublishing/MessagePublished/MessageReceived/MessageHandled/MessageFailed events plus ConsumePipeline / ConsumeMiddlewareInterface and consumeWithMiddleware() (see SAGA, Events, Middleware & Testing)
Fake AMQP test driver - Amqp::fake() / FakeAmqp with assertPublished(), assertPublishedCount(), assertNothingPublished() (see SAGA, Events, Middleware & Testing)
Publisher confirms & async publishing - persistent-channel AsyncPublisher with batched confirms via Amqp::asyncPublisher() (see SAGA, Events, Middleware & Testing)
RPC abstraction helpers - RpcClient / RpcServer with RpcCallResult, JSON mode, and Amqp::rpcClient() / rpcServer() (see Scale & Interop)
Cross-service / polyglot messaging - InteropEnvelope standard headers (x-message-type, x-schema-version, x-source-service) via publishInterop() / consumeInterop() (see Scale & Interop)
Observability & queue metrics - MetricsCollector, QueueMetrics, Amqp::metrics(), queueMetrics() / getQueueStats() (see Scale & Interop)
High-performance workers - WorkerOptions, HighPerformanceWorker, consumeOptimized(), and amqp:work --optimized (see Scale & Interop)
gRPC-lite typed RPC - Rpc::call(UserService::class, GetUserRequest::make([...])) with typed request/response DTOs, service registries, and Rpc::serve() on the server (see gRPC-lite RPC)
Service discovery - Rpc::service('payments')->call(...) resolves a short name to a registered RpcService class; opt-in via static alias() on the service (see Messaging Platform)
Saga facade - Saga::make()->step(...)->compensate(...) fluent syntax with reverse-order compensation on failure (see Messaging Platform)
Message contracts dispatch - OrderCreated::dispatch(['orderId' => 'o-1']) auto-serializes and publishes typed messages via the Laravel container (see Messaging Platform)
Dead-letter management - Amqp::deadLetters()->for('orders.dlq')->count()/peek()/summarize()/messages()/replayTo()/purge() + php artisan amqp:dlq (see Messaging Platform)
Declarative retry attribute - #[Retry(attempts: 5, strategy: RetryStrategy::EXPONENTIAL)] on handlers, hydrated via RetryPolicy::fromAttribute() (see Messaging Platform)
Monitoring dashboard - Amqp::dashboard($queues)->snapshot() with lag, DLQ summaries, and RPC histograms; php artisan amqp:monitor / amqp:dlq (see Messaging Platform)
RPC latency tracking - RpcLatencyRecorder, per-call durationMs on RpcCallResult, RpcCallStarted / RpcCallCompleted / RpcCallFailed events (see gRPC-lite RPC)
Causation ID propagation - CorrelationContext now propagates both correlation_id and x-causation-id so consumers can chain "this happened because of that" (see Messaging Platform)
MessageStore - MessageStoreInterface + InMemoryMessageStore; opt-in audit log of every publish/consume via Amqp::setMessageStore() (see Messaging Platform)
Async Laravel events - mark events with ShouldPublishToAmqpInterface and enable amqp.broadcast_laravel_events to auto-publish event(new OrderCreated()) to RabbitMQ (see Messaging Platform)
Laravel Pulse integration - AmqpPulseRecorder auto-records publish/handle/fail/RPC/DLQ events to Pulse when laravel/pulse is installed; opt out with amqp.pulse_integration => false (see Messaging Platform)
OpenTelemetry bridge - OpenTelemetryTracePropagator injects the active OTel span context into AMQP headers (with W3C fallback) when open-telemetry/api is installed (see Production Infrastructure)
Correlation ID visualisation - CorrelationChain::tree() / render() reconstruct causation graphs from the MessageStore; php artisan amqp:trace <correlation_id> prints an ASCII tree or JSON (see Messaging Platform)
Kubernetes liveness / readiness probes - HealthState + HealthCheck + Http\Controllers\HealthController; opt-in HTTP routes (GET {prefix}/live|ready) plus php artisan amqp:health for exec probes (see Kubernetes & Cloud Native)
Consumer autoscaling recommendations - AutoscalingAdvisor (depth + lag heuristics, KEDA trigger spec) and php artisan amqp:scale CLI (see Kubernetes & Cloud Native)
Laravel Cloud compatibility - LaravelCloud detector + AMQP_URL / CLOUDAMQP_URL / RABBITMQ_URL DSN auto-hydration on register (see Kubernetes & Cloud Native)
Multi-region deployment support - MultiRegionConnection resolver with locality preference, cool-down blacklist, and withFailover() retry loop across region-scoped connection keys (see Kubernetes & Cloud Native)

Planned Features

Status legend: [x] shipped · [~] partial / building blocks shipped (full feature still planned) · [ ] not started.

Many "partial" items already ship as a programmatic API or CLI; the outstanding work is usually a UI, native integration, or codegen layer. See the Features section above for the full list of already-shipped capabilities.

Observability

Laravel Pulse integration for AMQP metrics — AmqpPulseRecorder auto-subscribes to publish/handle/fail/RPC/DLQ events when laravel/pulse is installed; disable via amqp.pulse_integration => false
Native OpenTelemetry exporter support — OpenTelemetryTracePropagator bridges to open-telemetry/api when installed (active span context auto-injected); falls back to W3C generation otherwise. CallbackTracePropagator remains for custom APMs
Correlation ID visualization — CorrelationChain::tree() / render() reconstruct causation graphs from the MessageStore; php artisan amqp:trace <correlation_id> prints an ASCII tree or JSON
Queue throughput monitoring — MetricsCollector, QueueMetrics, Amqp::metrics() / queueMetrics(), MonitoringDashboard
Consumer lag monitoring — QueueMetrics::lag(), lagSeconds(), isLagging(); --lag-threshold / --lag-seconds / --lag-age on amqp:monitor
Dead-letter queue monitoring — DeadLetterManager::peek() / summarize(), dead_letters block in dashboard, php artisan amqp:dlq
RPC latency tracking — RpcLatencyRecorder, RpcCallResult::durationMs(), RpcCallCompleted / RpcCallFailed events, --rpc on amqp:monitor
Distributed trace propagation — TraceContext, W3cTracePropagator, propagate_trace on publish/consume

Developer Experience

AMQP Explorer (Telescope-like message inspector) — php artisan amqp:explore (with --id, filters, JSON mode)
Message replay tooling — php artisan amqp:replay + MessageStoreInterface source + target/exchange overrides
Failed message browser — php artisan amqp:explore + amqp:dlq (messages, peek, summarize) for CLI inspection
Live queue inspector — php artisan amqp:inspect watch loop over queueMetrics() / Management API
Message payload diff viewer — php artisan amqp:diff {left} {right} + structural JSON/text diffing
Schema validation debugger — php artisan amqp:schema:debug (interactive/file/store payload sources)
Interactive RPC testing console — php artisan amqp:rpc:console with JSON/raw payload modes

Kubernetes & Cloud Native

Kubernetes-ready consumer lifecycle management — ConsumerLifecycle::withHealth() stamps HealthState on every start/stop/message/error
Graceful shutdown support — ConsumerLifecycle signal handlers (SIGTERM / SIGINT via pcntl) + cooperative requestStop()
Readiness probe endpoint — GET {prefix}/ready HTTP route + php artisan amqp:health --probe=ready for exec probes
Liveness probe endpoint — GET {prefix}/live HTTP route + php artisan amqp:health --probe=live
Auto-recovery after broker failures — ResilientConnectionManager (reconnect + heartbeat staleness) and ConnectionPool
Consumer autoscaling recommendations — AutoscalingAdvisor + php artisan amqp:scale (depth/lag heuristics, KEDA-ready trigger output)
Laravel Cloud compatibility — LaravelCloud detector + AMQP_URL / CLOUDAMQP_URL / RABBITMQ_URL auto-hydration
Multi-region deployment support — MultiRegionConnection resolver with locality preference, cool-down blacklist, and withFailover() retry loop

Enterprise Messaging

[~] Dead-letter queue management UI — DeadLetterManager API + amqp:dlq / amqp:monitor CLI; web UI still planned
Scheduled message delivery (absolute time) — only relative delays today via publishLater() / dispatchLater()
Delayed message support — DelayedPublisher, Amqp::publishLater() / publishTypedLater(), TypedMessage::dispatchLater(), amqp:publish --delay-ms
Message priority queues — QueueProfile::priority() / quorumWithPriority(), x-max-priority, publish priority
Bulk publish operations — Amqp::batchBasicPublish() / batchPublish() + BatchManager
[~] Consumer rate limiting — QoS / prefetch only (basic_qos, --prefetch-count, WorkerOptions::throughput() / lowLatency()); no app-level msgs/sec throttling
Circuit breaker support
[~] Retry policy dashboard — RetryPolicy, #[Retry], RetryHandler, consumeWithRetry(); metrics via amqp:monitor (no dedicated retry UI)

Polyglot Microservices

Contract generation for TypeScript
Contract generation for Go
Contract generation for Python
[~] JSON Schema export — contracts can declare schema() and validate in-process; no export CLI yet
AsyncAPI specification generation
Service registry integration — ServiceRegistry, Rpc::services()->register() / autodiscover(), Rpc::service('alias')->call(...)
[~] Cross-language RPC contracts — InteropEnvelope standard headers (x-message-type, x-schema-version, x-source-service); no codegen for foreign languages

Operations

[~] Horizon-style AMQP dashboard — MonitoringDashboard snapshot + php artisan amqp:monitor [--json]; full web UI still planned
[~] Queue health monitoring — Management API stats + amqp:monitor (no dedicated health view)
[~] Consumer health monitoring — consumer counts / rates via Management API; no consumer health UI
Queue topology visualizer (ExchangeTopology / DeadLetterTopology are code builders, not a visualizer)
Exchange / routing-key explorer
[~] Production diagnostics commands — amqp:monitor, amqp:publish, amqp:consume, amqp:listen, amqp:purge, amqp:work; no dedicated amqp:diagnose
[~] Broker connectivity diagnostics — ResilientConnectionManager handles reconnection; no standalone diagnostic command

Security

Message encryption support
Message signing & verification
Sensitive payload masking
[~] Audit trail integration — MessageStoreInterface + InMemoryMessageStore (opt-in append log of every publish/consume)
Per-consumer access controls
Security scanning for message contracts

AI & Modern Features

AI-powered message anomaly detection
AI-assisted queue optimization recommendations
Natural language queue diagnostics
Intelligent retry recommendations

Requirements

PHP 7.3 through 8.5 (composer.json: ^7.3|^8.0)
Laravel 8.x through 13.x (or Lumen 8.x+)
RabbitMQ 3.x (tested with rabbitmq:3-management Docker image)

Laravel	Minimum PHP	Notes
8.x	7.3	Last Laravel version for PHP 7.3 / 7.4
9.x	8.0.2	Use PHP 8.0.2+ (not 8.0.0/8.0.1)
10.x	8.1
11.x / 12.x	8.2
13.x	8.3

Config supports both use + properties (current) and legacy default + connections layouts.

Installation

Composer

composer require bschmitt/laravel-amqp

For Laravel 5.5+:

"bschmitt/laravel-amqp": "^3.1"

For Laravel < 5.5:

"bschmitt/laravel-amqp": "^2.0"

Quick Start

Publishing Messages

use Bschmitt\Amqp\Facades\Amqp;

// Basic publish
Amqp::publish('routing-key', 'message');

// Publish with queue creation
Amqp::publish('routing-key', 'message', ['queue' => 'queue-name']);

// Publish with message properties
Amqp::publish('routing-key', 'message', [
    'priority' => 10,
    'correlation_id' => 'unique-id',
    'reply_to' => 'reply-queue',
    'application_headers' => [
        'X-Custom-Header' => 'value'
    ]
]);

Consuming Messages

use Bschmitt\Amqp\Facades\Amqp;

// Consume and acknowledge (using dynamic call)
$amqp = app('Amqp');
$amqp->consume('queue-name', function ($message, $resolver) {
    echo $message->body;
    $resolver->acknowledge($message);
    $resolver->stopWhenProcessed();
});

// Consume forever
$amqp = app('Amqp');
$amqp->consume('queue-name', function ($message, $resolver) {
    processMessage($message->body);
    $resolver->acknowledge($message);
}, ['persistent' => true]);

// Alternative: Using resolve() helper
$amqp = resolve('Amqp');
$amqp->consume('queue-name', function ($message, $resolver) {
    processMessage($message->body);
    $resolver->acknowledge($message);
});

RPC Pattern

// Client side - Make RPC call (using dynamic call)
$amqp = app('Amqp');
$response = $amqp->rpc('rpc-queue', 'request-data', [], 30);

// Server side - Process and reply (using dynamic call)
$amqp = app('Amqp');
$amqp->consume('rpc-queue', function ($message, $resolver) {
    $result = processRequest($message->body);
    $resolver->reply($message, $result);
    $resolver->acknowledge($message);
});

Listen to Multiple Routing Keys

$amqp = app('Amqp');
$amqp->listen(['key1', 'key2', 'key3'], function ($message, $resolver) {
    processMessage($message->body);
    $resolver->acknowledge($message);
});

Artisan Commands

The package registers five console commands. Handler classes must implement Bschmitt\Amqp\Contracts\MessageHandlerInterface or expose an __invoke($message, $resolver) method. The $resolver is the active consumer and provides acknowledge(), reject(), reply(), and stopWhenProcessed().

`amqp:work` — long-running worker

php artisan amqp:work my-queue --handler="App\\Messaging\\ProcessOrderHandler"

Option	Description
`--handler=`	Required. FQCN of your message handler
`--connection=`	Connection name from `config/amqp.php`
`--exchange=` / `--exchange-type=`	Override exchange settings
`--routing-key=*`	Routing key(s) to bind (repeatable)
`--prefetch-count=`	Enable QoS with this prefetch count
`--max-messages=0`	Stop after N messages (0 = unlimited)
`--max-time=0`	Stop after N seconds
`--memory=128`	Exit if memory exceeds MB
`--stop-when-empty`	Exit when the queue is drained instead of waiting
`--requeue-on-error`	Requeue messages when the handler throws

`amqp:consume` — process a fixed number of messages

php artisan amqp:consume my-queue --handler="App\\Messaging\\ProcessOrderHandler" --max-messages=10
php artisan amqp:consume my-queue --handler="App\\Messaging\\ProcessOrderHandler" --all

Defaults to one message per invocation. Use --all to drain the queue.

`amqp:listen` — listen on routing keys

php artisan amqp:listen order.created order.updated --handler="App\\Messaging\\OrderHandler"

Creates an auto-deleted queue (unless --queue= or --no-auto-delete is set) and binds it to every supplied routing key.

`amqp:publish` — publish from the CLI

php artisan amqp:publish order.created --body='{"id":42}' --exchange=orders --priority=5
php artisan amqp:publish order.created --file=./payload.json --headers='{"X-Source":"cli"}'
php artisan amqp:publish order.created --body='{"id":42}' --delay-ms=5000 --exchange=orders

Use --delay-ms to schedule delivery (TTL+DLX by default, or --delay-strategy=plugin when the delayed-message exchange plugin is installed).

`amqp:purge` — empty a queue

php artisan amqp:purge my-queue --force

Retry options on `amqp:work`

Option	Description
`--retry=N`	Wraps the handler in a `RetryHandler` and configures up to `N` retries (0 disables retries)
`--retry-delay=ms`	Base delay between retries in milliseconds (default `1000`)
`--retry-backoff=fixed\|exponential`	Backoff strategy (default `fixed`)
`--retry-multiplier=2.0`	Growth factor for exponential backoff
`--retry-max-delay=ms`	Cap for the computed retry delay (`0` = uncapped)
`--retry-jitter=ms`	Random jitter added to each retry delay
`--dlq=name`	Override the dead-letter queue name (default `{queue}.dlq`)
`--declare-topology`	Pre-declare the work + DLQ + retry queues before consuming
`--contract=`	FQCN of a `MessageContractInterface` to deserialize bodies into (passed as 3rd handler arg)
`--validate-schema`	Validate inbound JSON against the contract's `schema()` before invoking the handler

See Retry & Dead-Letter Abstractions for the full picture.

Example handler

namespace App\Messaging;

use Bschmitt\Amqp\Contracts\ConsumerInterface;
use Bschmitt\Amqp\Contracts\MessageHandlerInterface;
use PhpAmqpLib\Message\AMQPMessage;

class ProcessOrderHandler implements MessageHandlerInterface
{
    public function handle(AMQPMessage $message, ConsumerInterface $resolver, $typed = null): void
    {
        $order = $typed !== null ? $typed->toPayload() : json_decode($message->body, true);
        // ... process $order ...
        $resolver->acknowledge($message);
    }
}

Laravel Queue Driver

Use this package as a native Laravel queue backend so jobs can be dispatched with dispatch(), Queue::push(), and processed with php artisan queue:work.

1. Publish AMQP config

php artisan vendor:publish --provider="Bschmitt\Amqp\Providers\AmqpServiceProvider"

2. Add queue connection

Merge the example from config/queue-amqp.php into config/queue.php:

'connections' => [
    // ...
    'amqp' => [
        'driver' => 'amqp',
        'connection' => env('AMQP_ENV', 'production'), // key in config/amqp.php properties
        'queue' => env('AMQP_QUEUE', 'default'),
        'retry_after' => 90,
    ],
],

3. Set default queue connection (optional)

QUEUE_CONNECTION=amqp

4. Run the worker

php artisan queue:work amqp --queue=default

Jobs are published to your configured exchange with the queue name as the routing key. Delayed jobs use a TTL dead-letter queue per delay interval.

Delayed & released jobs

ProcessOrder::dispatch($order)->delay(now()->addMinutes(5));

AmqpQueue::later() publishes to a per-TTL delay queue ({queue}.delay.{ttl_ms}) with x-dead-letter-exchange / x-message-ttl so RabbitMQ delivers the job back to the main queue when the delay expires. $job->release($seconds) uses the same mechanism.

Verify the driver

vendor/bin/phpunit --testdox \
  --filter 'AmqpQueue|AmqpJob|AmqpConnector|AmqpServiceProviderQueue|QueueConfigResolver|LaravelQueue'

Full setup, architecture and troubleshooting: docs/content/queue-driver.md or the interactive docs site (docs/index.html).

Configuration

Laravel

Publish the configuration file:

php artisan vendor:publish --provider="Bschmitt\Amqp\Providers\AmqpServiceProvider"

Or manually copy vendor/bschmitt/laravel-amqp/config/amqp.php to config/amqp.php.

Lumen

Create a config folder in your Lumen root and copy the configuration file:

mkdir config
cp vendor/bschmitt/laravel-amqp/config/amqp.php config/amqp.php

Register the service provider in bootstrap/app.php:

$app->configure('amqp');
$app->register(Bschmitt\Amqp\Providers\LumenServiceProvider::class);

// For Lumen 5.2+, enable facades
$app->withFacades(true, [
    'Bschmitt\Amqp\Facades\Amqp' => 'Amqp',
]);

Configuration Example

return [
    'use' => env('AMQP_ENV', 'production'),

    'properties' => [
        'production' => [
            'host'                => env('AMQP_HOST', 'localhost'),
            'port'                => env('AMQP_PORT', 5672),
            'username'            => env('AMQP_USER', 'guest'),
            'password'            => env('AMQP_PASSWORD', 'guest'),
            'vhost'               => env('AMQP_VHOST', '/'),
            'exchange'            => env('AMQP_EXCHANGE', 'amq.topic'),
            'exchange_type'       => env('AMQP_EXCHANGE_TYPE', 'topic'),
            'consumer_tag'        => 'consumer',
            'ssl_options'         => [],
            'connect_options'     => [],
            'queue_properties'    => ['x-ha-policy' => ['S', 'all']],
            'exchange_properties' => [],
            'timeout'             => 0,
            
            // Management API (optional)
            'management_api_url' => env('AMQP_MANAGEMENT_URL', 'http://localhost:15672'),
            'management_api_user' => env('AMQP_MANAGEMENT_USER', 'guest'),
            'management_api_password' => env('AMQP_MANAGEMENT_PASSWORD', 'guest'),
        ],
    ],
];

Documentation

Comprehensive Guides

User Manual - Complete usage guide
Release Notes - Version 3.4.0 changelog (latest: 3.4.0 minor release)
FAQ - Common questions and answers

Wiki Documentation

Getting Started - Installation and first steps
Configuration - Configuration guide
Publishing Messages - Publishing guide
Consuming Messages - Consumption guide
RPC Pattern - Request-response patterns
Queue Management - Queue operations
Management API - HTTP API integration
Message Properties - Message properties
Advanced Features - Advanced usage
Architecture - Package architecture
Testing - Testing guide

Module Documentation

See docs/modules/ for detailed module documentation:

RPC Module
Management Operations
Management API
Message Properties
Consumer Prefetch
And more...

Examples

Fanout Exchange

// Publishing
Amqp::publish('', 'message', [
    'exchange_type' => 'fanout',
    'exchange' => 'amq.fanout',
]);

// Consuming (using dynamic call)
$amqp = app('Amqp');
$amqp->consume('', function ($message, $resolver) {
    echo $message->body;
    $resolver->acknowledge($message);
}, [
    'routing' => '',
    'exchange' => 'amq.fanout',
    'exchange_type' => 'fanout',
    'queue_force_declare' => true,
    'queue_exclusive' => true,
    'persistent' => true
]);

Queue Management

// Get Amqp instance
$amqp = app('Amqp');

// Purge queue
$amqp->queuePurge('my-queue', ['queue' => 'my-queue']);

// Delete queue
$amqp->queueDelete('my-queue', ['queue' => 'my-queue']);

// Get queue statistics
$stats = $amqp->getQueueStats('my-queue', '/');

Management API

// Get Amqp instance
$amqp = app('Amqp');

// Get queue statistics
$stats = $amqp->getQueueStats('my-queue', '/');

// List connections
$connections = $amqp->getConnections();

// Create policy
$amqp->createPolicy('my-policy', [
    'pattern' => '^my-queue$',
    'definition' => ['max-length' => 1000]
], '/');

Retry & Dead-Letter Abstractions

Three small primitives let you build production-grade retry pipelines without hand-rolling DLX wiring:

Bschmitt\Amqp\Support\RetryPolicy — declarative max attempts + backoff strategy (fixed, exponential, immediate, none) with optional cap and jitter.
Bschmitt\Amqp\Support\DeadLetterTopology — describes the work queue, the DLQ, and the per-delay retry queues. Produces ready-to-use property arrays for publish() / consume().
Bschmitt\Amqp\Support\RetryHandler — decorator that wraps your handler. On exception it republishes the message to a TTL'd retry queue (which dead-letters back to the work queue when the TTL expires) and acknowledges the original delivery. When the retry budget is spent it rejects without requeue so RabbitMQ routes the message to the DLQ via the x-dead-letter-exchange configured on the work queue.

Declare the topology once

use Bschmitt\Amqp\Support\DeadLetterTopology;
use Bschmitt\Amqp\Support\RetryPolicy;

$amqp = app('Amqp');

// RetryPolicy::exponential($maxAttempts, $baseDelayMs, $multiplier, $maxDelayMs)
$policy   = RetryPolicy::exponential(5, 1000, 2.0, 60000);
$topology = DeadLetterTopology::for('orders.process', $policy)
    ->on('app.events', 'topic')
    ->withRoutingKey('orders.process');

// Idempotently creates: orders.process, orders.process.dlq,
// and orders.process.retry.{1000,2000,4000,8000,16000} (capped at 60000).
$amqp->declareRetryTopology($topology);

Consume with auto-retry / DLQ routing

$amqp->consumeWithRetry($topology, function ($message, $resolver) {
    processOrder(json_decode($message->body, true));
    $resolver->acknowledge($message);
});

When the handler throws:

RetryHandler reads (and bumps) the x-retry-attempt application header.
If the next attempt still fits the policy, the message is republished to orders.process.retry.{delayMs} with the computed TTL. RabbitMQ's DLX on that queue routes the message back to orders.process once the TTL expires.
When the retry budget is exhausted, the handler rejects the message without requeue and RabbitMQ forwards it to orders.process.dlq via the work queue's x-dead-letter-exchange.
The x-first-failed-at and x-last-error headers carry diagnostics forward across retries so DLQ inspection is meaningful.

Pick a policy

use Bschmitt\Amqp\Support\RetryPolicy;

RetryPolicy::fixed(3, 1000);                       // 3 retries, 1s apart
RetryPolicy::exponential(5, 500, 2.0, 30000);      // 500ms doubling, capped at 30s
RetryPolicy::immediate(2);                         // 2 retries with zero delay
RetryPolicy::none();                               // failures go straight to the DLQ

Wrap an existing handler manually

use Bschmitt\Amqp\Support\RetryHandler;

$wrapped = $amqp->retryHandler($yourHandler, $topology, function ($level, $message, $context) {
    Log::log($level, $message, $context);
});

$amqp->consume('orders.process', $wrapped, $topology->toWorkProperties());

Driving the worker from the CLI

php artisan amqp:work orders.process \
    --handler="App\\Messaging\\ProcessOrderHandler" \
    --retry=5 \
    --retry-backoff=exponential \
    --retry-delay=1000 \
    --retry-multiplier=2.0 \
    --retry-max-delay=60000 \
    --dlq=orders.process.failed \
    --declare-topology

See docs/content/advanced.md and the unit tests under test/Unit/Retry* / test/Unit/DeadLetterTopologyTest.php for more examples.

Delayed Messaging & Publish Backoff

Schedule messages for later delivery or absorb transient broker errors on publish.

`publishLater()` — schedule delivery

$amqp = app('Amqp');

// TTL + dead-letter exchange (works on stock RabbitMQ)
$amqp->publishLater('orders.reminder', json_encode(['orderId' => 42]), 60000, [
    'exchange' => 'shop.events',
]);

// rabbitmq-delayed-message-exchange plugin (exchange must be x-delayed-message)
$amqp->publishLater('orders.reminder', $body, 60000, [
    'exchange' => 'shop.delayed',
    'delay_strategy' => 'plugin',
]);

DelayedPublisher creates a per-delay queue ({routing}.delayed.{ms}) with x-message-ttl and DLX routing back to the target exchange when using the default TTL strategy.

`PublishBackoff` — retry failed publishes

use Bschmitt\Amqp\Support\RetryPolicy;

$amqp->withPublishBackoff(RetryPolicy::exponential(3, 100, 2.0))->run(function () use ($amqp) {
    return $amqp->publish('orders.created', $payload);
});

This is separate from consumer-side RetryHandler — it retries the publish call itself when the broker throws.

Typed Message Contracts & DTO Serialization

Define message shapes as plain PHP classes and let the package handle JSON encoding/decoding.

use Bschmitt\Amqp\Support\TypedMessage;

class OrderCreated extends TypedMessage
{
    public $orderId;
    public $total;
    public $currency;

    public function __construct($orderId = null, $total = null, $currency = null)
    {
        $this->orderId = $orderId;
        $this->total = $total;
        $this->currency = $currency;
    }

    public static function routingKey()
    {
        return 'orders.created';
    }

    public static function exchange()
    {
        return 'shop.events';
    }
}

$amqp = app('Amqp');

// Publish — picks up routing key + exchange from the contract
$amqp->publishTyped(new OrderCreated('order-1', 19.99, 'USD'));

// Consume — callback receives ($typed, $message, $resolver)
$amqp->consumeTyped('orders.queue', OrderCreated::class, function ($order, $message, $resolver) {
    processOrder($order->orderId);
    $resolver->acknowledge($message);
});

// Delayed typed publish
$amqp->publishTypedLater(new OrderCreated('order-2', 9.99, 'USD'), 30000);

Swap the serializer via $amqp->setSerializer($mySerializer) when you need MessagePack, Avro, etc.

JSON Schema Validation

Contracts may expose a static schema() method returning a JSON Schema-style array. The package validates payloads on publish and consume using the bundled SchemaValidator (no external dependencies).

class OrderCreated extends TypedMessage
{
    // ...properties...

    public static function schema()
    {
        return [
            'type' => 'object',
            'required' => ['orderId', 'total', 'currency'],
            'additionalProperties' => false,
            'properties' => [
                'orderId'  => ['type' => 'string', 'minLength' => 1],
                'total'    => ['type' => 'number', 'minimum' => 0],
                'currency' => ['type' => 'string', 'enum' => ['USD', 'EUR', 'GBP']],
            ],
        ];
    }
}

Invalid payloads raise Bschmitt\Amqp\Exception\SchemaValidationException with a list of pointer-style error messages. On the CLI, combine --contract with --validate-schema on amqp:work.

Supported keywords include type, required, properties, additionalProperties, enum, const, minimum/maximum, minLength/maxLength, pattern, format (email, uri, uuid, date, date-time), items, oneOf/anyOf/allOf/not, and more — see docs/content/advanced.md.

Production Infrastructure

Exchange topology builder

Declare an exchange and multiple bound queues in one fluent builder:

use Bschmitt\Amqp\Facades\Amqp;
use Bschmitt\Amqp\Support\ExchangeTopology;
use Bschmitt\Amqp\Support\QueueProfile;

$topology = ExchangeTopology::exchange('events', 'topic')
    ->bindQueue('orders.created', 'order.created')
    ->bindQueue('orders.shipped', 'order.shipped', QueueProfile::quorum());

Amqp::declareExchangeTopology($topology);

// Publish using properties for a specific queue in the topology
Amqp::publish('order.created', $payload, $topology->propertiesForQueue('orders.created'));

Shortcut: Amqp::exchangeTopology('events', 'topic')->bindQueue(...).

Quorum & priority queues

use Bschmitt\Amqp\Support\QueueProfile;

Amqp::publish('jobs', $payload, QueueProfile::quorumWithPriority(10)->mergeInto([
    'queue' => 'jobs',
    'routing' => 'jobs',
]));

Resilient connections & connection pool

use Bschmitt\Amqp\Facades\Amqp;
use Bschmitt\Amqp\Managers\ConnectionPool;

// Per-request resilient manager (reconnect + heartbeat staleness)
$resilient = Amqp::resilientConnection(['host' => 'rabbitmq'], [
    'max_reconnect_attempts' => 5,
    'heartbeat' => 30,
]);
$channel = $resilient->getChannel();

// Long-lived worker pool (persistent keys survive disconnectAll(false))
$pool = Amqp::connectionPool();
$manager = $pool->connection('worker', ['use' => 'production', 'resilient' => true], true);

Correlation ID & distributed tracing

use Bschmitt\Amqp\Support\CorrelationContext;

CorrelationContext::set('request-abc-123');

Amqp::publish('orders.created', $payload, [
    'propagate_correlation' => true,
    'propagate_trace' => true,
]);

Amqp::consumeWithLifecycle('orders.created', function ($message, $resolver) {
    // CorrelationContext::get() is populated when propagate_* flags are used
}, null, [
    'propagate_correlation' => true,
    'propagate_trace' => true,
]);

Bridge OpenTelemetry (or any APM) without a hard dependency:

use Bschmitt\Amqp\Support\CallbackTracePropagator;

Amqp::setTracePropagator(new CallbackTracePropagator(
    function (array $carrier, $context) {
        // inject active span into $carrier
        return $carrier;
    },
    function (array $carrier) {
        // extract TraceContext from $carrier or return null
        return null;
    }
));

Consumer lifecycle

use Bschmitt\Amqp\Support\ConsumerLifecycle;

$lifecycle = (new ConsumerLifecycle())
    ->registerSignalHandlers()
    ->onStopping(function ($lifecycle) {
        // flush buffers, close DB connections, etc.
    });

Amqp::consumeWithLifecycle('jobs', $handler, $lifecycle);

See docs/content/production-features.md for the full reference.

SAGA, Events, Middleware & Testing

SAGA workflow

use Bschmitt\Amqp\Facades\Amqp;

$saga = Amqp::saga('checkout')
    ->step('reserveStock', $reserveStock, $releaseStock)
    ->step('chargeCard',  $chargeCard,  $refundCard)
    ->step('shipOrder',   $shipOrder);

$result = $saga->execute(['orderId' => 42]);
if ($result->failed()) {
    Log::error('Saga failed', [
        'step' => $result->getFailedStep(),
        'compensated' => $result->getCompensatedSteps(),
        'error' => $result->getException()->getMessage(),
    ]);
}

Compensations only run for steps that completed before the failure, in reverse order.

Laravel events

The package dispatches the following events through \Illuminate\Support\Facades\Event (and a local listener registry as a fallback for non-Laravel contexts):

Event	When
`Bschmitt\Amqp\Events\MessagePublishing`	Right before a publish is sent
`Bschmitt\Amqp\Events\MessagePublished`	After a successful publish
`Bschmitt\Amqp\Events\MessageReceived`	When a message is received by the consume pipeline
`Bschmitt\Amqp\Events\MessageHandled`	After the handler completes
`Bschmitt\Amqp\Events\MessageFailed`	When the handler throws

Listen in Laravel as usual:

Event::listen(\Bschmitt\Amqp\Events\MessageFailed::class, function ($event) {
    Log::warning('AMQP handler failed', ['error' => $event->exception->getMessage()]);
});

Consume middleware

Wrap the consume handler with a pipeline:

use Bschmitt\Amqp\Facades\Amqp;

Amqp::consumeWithMiddleware('orders', function ($message, $resolver) {
    // handle...
}, [
    function ($message, $next) {
        $start = microtime(true);
        $next($message);
        Log::info('handled', ['duration_ms' => (microtime(true) - $start) * 1000]);
    },
    // ...or a ConsumeMiddlewareInterface instance
]);

Each middleware receives (AMQPMessage $message, callable $next) and can short-circuit by not calling $next.

Fake AMQP driver

In tests, replace the bound singleton with a recording fake:

use Bschmitt\Amqp\Core\Amqp;

public function test_publishes_order_created()
{
    $fake = Amqp::fake();

    (new CreateOrder)->handle();

    $fake->assertPublished('orders.created');
    $fake->assertPublishedCount(1, 'orders.created');
    $fake->assertNotPublished('orders.shipped');
}

The fake records both publish() and publishLater() calls; never touches the broker.

Async publishing with publisher confirms

$async = Amqp::asyncPublisher(['exchange' => 'events'])
    ->onAck(function ($tag)  { /* metric: published */ })
    ->onNack(function ($tag) { /* metric: failed */ });

foreach ($messages as $m) {
    $async->publish('events.created', json_encode($m));
}

if (!$async->flush(30)) {
    Log::warning('Some publisher confirms timed out');
}

$async->close();

AsyncPublisher keeps a single channel open with confirm_select and only waits for confirmations on flush(), so high-throughput publishers don't block on the per-message round-trip.

Scale & Interop

RPC abstraction

// Client
$result = Amqp::rpcClient(['exchange' => 'rpc'])->asJson()->timeout(10)
    ->call('users.lookup', ['id' => 42]);

if ($result->succeeded()) {
    $user = $result->body();
}

// Server
Amqp::rpcServer()->asJson()->serve('rpc.users', function ($request, $consumer) {
    return ['id' => $request['id'], 'name' => 'Ada'];
});

RpcCallResult exposes succeeded(), timedOut(), and body().

Cross-service / polyglot messaging

Amqp::publishInterop(
    'orders.created',
    ['orderId' => 99, 'total' => 12.50],
    'orders.created',
    'billing-service',
    ['exchange' => 'events'],
    '2.0'
);

Amqp::consumeInterop('events.orders', function ($interop, $raw, $resolver) {
    $payload = \Bschmitt\Amqp\Support\InteropEnvelope::decodePayload($interop);
    // $interop->messageType, $interop->sourceService, $interop->schemaVersion
});

Standard headers (x-message-type, x-schema-version, x-source-service) let Node, Go, or Java consumers route messages without PHP DTOs.

Observability & queue metrics

// In-process counters (per worker / request)
$stats = Amqp::metrics()->snapshot();

// Broker-side queue depth + rates (Management API)
$metrics = Amqp::queueMetrics('orders', '/');
Log::info('queue depth', $metrics->toArray());

Publish/consume paths increment MetricsCollector automatically when using publish(), consumeWithMiddleware(), or HighPerformanceWorker.

High-performance workers

Amqp::consumeOptimized('jobs', $handler, ['exchange' => 'work']);

// Or explicitly:
Amqp::highPerformanceWorker(
    \Bschmitt\Amqp\Support\WorkerOptions::throughput(100)
)->run('jobs', $handler);

CLI: php artisan amqp:work jobs --handler=App\\Handlers\\JobHandler --optimized

See docs/content/scale-and-interop.md for the full reference.

gRPC-lite RPC

A typed, service-oriented RPC layer that feels like gRPC but rides on RabbitMQ. Define a service once, then call it from any process with typed DTOs.

Define the service contract

use Bschmitt\Amqp\Rpc\RpcService;
use Bschmitt\Amqp\Rpc\RpcRequest;
use Bschmitt\Amqp\Rpc\RpcResponse;

class UserService extends RpcService
{
    public static function queue(): string
    {
        return 'rpc.user-service';
    }

    public static function methods(): array
    {
        return [
            GetUserRequest::class    => 'getUser',
            CreateUserRequest::class => 'createUser',
        ];
    }
}

class GetUserRequest extends RpcRequest
{
    public $id;

    public function __construct($id = null) { $this->id = $id; }

    public static function responseClass()
    {
        return GetUserResponse::class;
    }
}

class GetUserResponse extends RpcResponse
{
    public $id;
    public $name;

    public function __construct($id = null, $name = null)
    {
        $this->id = $id;
        $this->name = $name;
    }
}

Call from any client

use Rpc; // facade alias auto-registered

$response = Rpc::call(
    UserService::class,
    GetUserRequest::make(['id' => 5])
);

echo $response->name; // GetUserResponse instance, hydrated for you

Rpc::call() automatically:

Resolves the queue from the service contract.
JSON-encodes the request DTO.
Issues a synchronous AMQP RPC round-trip via the existing primitive.
Hydrates the reply into the request's responseClass() (or returns the raw decoded array).

Throws RpcTimeoutException if no reply arrives, or RpcException if the server returned an error envelope.

Serve on the server side

use Rpc;

class UserServiceHandler
{
    public function getUser(GetUserRequest $request): GetUserResponse
    {
        $user = User::findOrFail($request->id);
        return GetUserResponse::make([
            'id'   => $user->id,
            'name' => $user->name,
        ]);
    }

    public function createUser(CreateUserRequest $request): GetUserResponse
    {
        $user = User::create(['name' => $request->name]);
        return GetUserResponse::make(['id' => $user->id, 'name' => $user->name]);
    }
}

Rpc::register(UserService::class, UserServiceHandler::class)
   ->serve(UserService::class);

The handler may be an instance or a container-resolvable FQCN (Laravel only). Handler exceptions are wrapped into an _rpc_error envelope so the client raises a typed RpcException with the original message and class name.

Configurable

// Global default timeout
Rpc::defaultTimeout(10);

// Per-call timeout + extra publish properties
Rpc::call(UserService::class, GetUserRequest::make(['id' => 1]), 5, [
    'exchange' => 'rpc.svc',
]);

RPC latency & events

Every Rpc::call() records timing in Amqp::rpcMetrics() and dispatches Laravel events you can wire to Pulse, logs, or APM:

use Bschmitt\Amqp\Events\RpcCallCompleted;
use Bschmitt\Amqp\Events\RpcCallFailed;

Event::listen(RpcCallCompleted::class, fn ($e) => Log::info('rpc.ok', [
    'service' => $e->service,
    'request' => $e->request,
    'ms'      => $e->durationMs,
]));

$stats = Amqp::rpcMetrics()->snapshot();
// ['UserService::GetUserRequest' => ['count' => 42, 'p95_ms' => 12.5, 'error_rate' => 0.02, ...]]

Lower-level RpcClient::call() also returns RpcCallResult::durationMs().

See docs/content/grpc-lite-rpc.md for the full reference.

Laravel Messaging Platform

A set of higher-level building blocks that turn the package from "an AMQP client" into a full microservice toolkit: service discovery, sagas, message contracts, dead-letter management, declarative retry, monitoring, automatic context propagation, an audit log, and an event bridge.

Service Discovery (`Rpc::service(...)`)

Skip exchange/routing-key/queue gymnastics — register a short name and call by that name.

use Bschmitt\Amqp\Facades\Rpc;

// Either: explicit registration
Rpc::services()->register('payments', PaymentsService::class);

// Or: opt-in auto-discovery (service exposes `public static function alias()`)
class PaymentsService extends RpcService {
    public static function queue(): string   { return 'rpc.payments'; }
    public static function methods(): array  { return [GetPayment::class => 'find']; }
    public static function alias(): ?string  { return 'payments'; }
}

Rpc::services()->autodiscover([PaymentsService::class]);

$response = Rpc::service('payments')
    ->timeout(5)
    ->call(GetPayment::make(['id' => 123]));

Rpc::service() accepts an alias or a service FQCN.

Saga Facade

Saga::make()->step()->compensate() with reverse-order compensation when a step throws.

use Bschmitt\Amqp\Facades\Saga;

$result = Saga::make('checkout')
    ->step('reserve', fn($ctx) => $stock->reserve($ctx['orderId']))
        ->compensate(fn($ctx) => $stock->release($ctx['orderId']))
    ->step('charge',  fn($ctx) => $payments->charge($ctx['amount']))
        ->compensate(fn($ctx, $tx) => $payments->refund($tx))
    ->execute(['orderId' => 1, 'amount' => 49.99]);

if (!$result->succeeded()) {
    Log::error('Saga failed at ' . $result->getFailedStep(), [
        'compensated' => $result->getCompensatedSteps(),
    ]);
}

Message Contracts (`OrderCreated::dispatch(...)`)

TypedMessage now exposes make() and dispatch() (and dispatchLater() for the delayed-queue variant).

use Bschmitt\Amqp\Support\TypedMessage;

class OrderCreated extends TypedMessage
{
    public $orderId;
    public $total;

    public static function name(): string { return 'orders.created'; }
}

OrderCreated::dispatch(['orderId' => 'o-1', 'total' => 9.99]);

OrderCreated::dispatchLater(['orderId' => 'o-1'], 2_000); // 2s delay

Dead-Letter Management

use Bschmitt\Amqp\Facades\Amqp;

Amqp::deadLetters()->for('orders.dlq')->count();           // 17
Amqp::deadLetters()->for('orders.dlq')->peek(20);         // non-destructive sample
Amqp::deadLetters()->for('orders.dlq')->summarize(100);   // group by reason / error
Amqp::deadLetters()->for('orders.dlq')->messages(10);      // drain & inspect (destructive)
Amqp::deadLetters()->for('orders.dlq')->replayTo('orders', 50);
Amqp::deadLetters()->for('orders.dlq')->purge();

CLI:

php artisan amqp:dlq inspect orders.dlq
php artisan amqp:dlq summary orders.dlq --limit=200 --json
php artisan amqp:dlq replay  orders.dlq --target=orders --limit=50
php artisan amqp:dlq purge   orders.dlq --force

Lifecycle events: DeadLetterDetected, DeadLetterReplayed, DeadLetterPurged.

Declarative Retry (`#[Retry]`)

use Bschmitt\Amqp\Attributes\Retry;
use Bschmitt\Amqp\Support\RetryStrategy;
use Bschmitt\Amqp\Support\RetryPolicy;

class CreateOrderHandler
{
    #[Retry(attempts: 5, strategy: RetryStrategy::EXPONENTIAL, delayMs: 500)]
    public function handle($message): void { /* ... */ }
}

$policy = RetryPolicy::fromAttribute(CreateOrderHandler::class, 'handle');
$amqp->consumeWithRetry('orders', $handler, $policy);

On PHP 7.x the attribute parses as a comment (the package still loads); call sites that want the attribute need PHP 8+.

Monitoring Dashboard

$snapshot = Amqp::dashboard(['orders', 'orders.dlq'])
    ->deadLetters(['orders.dlq'])
    ->lagThresholds(1000, 60.0, 300)
    ->snapshot();
// process, queues (with lag / lag_seconds / lagging), dead_letters, rpc, lagging[], generated

CLI:

php artisan amqp:monitor --queue=orders --queue=orders.dlq --json
php artisan amqp:monitor --queue=orders --dlq=orders.dlq --rpc
php artisan amqp:monitor --queue=orders --lag-threshold=1000 --lag-seconds=60
# exits 1 when any queue breaches a lag threshold (cron-friendly)

Wire the snapshot into any HTTP route (Laravel, Symfony, Slim) to expose a JSON dashboard.

Causation ID Propagation

CorrelationContext::inheritFromMessage() now picks up the inbound message_id as the causation_id for everything published afterwards, so downstream services can trace "this happened because of that" through a chain.

CorrelationContext::inheritFromMessage($incoming);

Amqp::publish('orders.created', $body, [
    'propagate_correlation' => true,
    'message_id' => uniqid('msg_', true),
]);
// outbound has `correlation_id`, `x-correlation-id`, and `x-causation-id` set

Correlation Chain Visualisation

CorrelationChain walks the MessageStore, groups entries by correlation_id, and rebuilds the causation tree using the x-causation-id header — no UI server required.

use Bschmitt\Amqp\Support\CorrelationChain;

$chain = new CorrelationChain($amqp->messageStore());

$summary = $chain->summarize('corr_abc123');
// total, published, consumed, routings, first_at, last_at, duration_ms

$tree = $chain->tree('corr_abc123');         // nested ['entry' => ..., 'children' => [...]]
echo $chain->render($tree);                  // ASCII tree, perfect for logs

CLI:

php artisan amqp:trace corr_abc123
php artisan amqp:trace corr_abc123 --summary
php artisan amqp:trace corr_abc123 --json --limit=50

Sample output:

correlation_id: corr_abc123
messages: 4 (published=3, consumed=1)
span: 18.42 ms
routings: orders.created(1), orders.shipped(2), orders.invoiced(1)

[published] >> orders.created (msg=msg_root)
├── [published] >> orders.shipped (msg=msg_a)
│   └── [published] >> orders.invoiced (msg=msg_grand)
└── [consumed]  << orders.shipped (msg=msg_b)

Laravel Pulse Integration

When laravel/pulse is installed the package auto-registers AmqpPulseRecorder and records the following metric types so they show up under Pulse::values($type) and in custom cards:

Type	Key	Value
`amqp_publish`	routing key	1 (count)
`amqp_handle`	queue	duration (ms)
`amqp_fail`	queue	1 (count)
`amqp_rpc`	`Service::Request` (short name)	duration (ms)
`amqp_rpc_fail`	`Service::Request`	1 (count)
`amqp_dlq`	dead-letter queue	sampled msg count

Disable the auto-subscription in config/amqp.php:

return [
    // ...
    'pulse_integration' => false,
];

The recorder is a silent no-op when Pulse is not installed — no exceptions, no log spam.

OpenTelemetry Bridge

OpenTelemetryTracePropagator plugs the open-telemetry/api SDK into the package's TracePropagatorInterface so that the active OTel span context is auto-injected into every AMQP traceparent / tracestate header.

use Bschmitt\Amqp\Contracts\TracePropagatorInterface;
use Bschmitt\Amqp\Support\OpenTelemetryTracePropagator;

// In a service provider:
$this->app->singleton(TracePropagatorInterface::class, function () {
    return new OpenTelemetryTracePropagator();
    // Or pass an explicit \OpenTelemetry\Context\Propagation\TextMapPropagatorInterface
});

When the SDK is absent the propagator falls back to W3C generation (W3cTracePropagator), so the same wiring works on stripped-down environments and in CI.

MessageStore (audit log / event-sourcing seed)

use Bschmitt\Amqp\Support\InMemoryMessageStore;

$amqp->setMessageStore(new InMemoryMessageStore());

Amqp::publish('orders.created', '{}');

$entries = $amqp->messageStore()->all(['direction' => 'published']);

Implement MessageStoreInterface to back it with Eloquent / Redis / files for durable replay.

Async Laravel Events

use Bschmitt\Amqp\Contracts\ShouldPublishToAmqpInterface;

class OrderCreated implements ShouldPublishToAmqpInterface
{
    public function __construct(public string $orderId) {}
}

// config/amqp.php
return [
    // ...
    'broadcast_laravel_events' => true,
];

event(new OrderCreated('o-1'));
// auto-published to RabbitMQ with routing key `order_created`

Override amqpRouting(), amqpExchange(), or amqpPayload() on the event to customise routing.

Testing

The package includes comprehensive test coverage:

# Run all tests
php vendor/bin/phpunit

# Run unit tests only
php vendor/bin/phpunit test/Unit/

# Run integration tests only
php vendor/bin/phpunit test/Integration/

Test Requirements:

RabbitMQ server running (for integration tests)
Docker: docker run -d --name rabbitmq -p 5672:5672 -p 15672:15672 rabbitmq:3-management

See Testing Guide for more information.

Version 3.1.0+ Highlights

New Methods

RPC:

$amqp->rpc($routingKey, $request, $properties, $timeout) - Make RPC calls (use $amqp = app('Amqp'))
Consumer::reply($message, $response, $properties) - Send RPC responses
$amqp->listen($routingKeys, $callback, $properties) - Auto-create queues with multiple bindings (use $amqp = app('Amqp'))

Management:

$amqp->queuePurge($queue, $properties) - Purge queue (use $amqp = app('Amqp'))
$amqp->queueDelete($queue, $ifUnused, $ifEmpty, $properties) - Delete queue
$amqp->queueUnbind(...) - Unbind queue
$amqp->exchangeDelete(...) - Delete exchange
$amqp->exchangeUnbind(...) - Unbind exchange

Management API:

$amqp->getQueueStats($queue, $vhost, $properties) - Queue statistics (use $amqp = app('Amqp'))
$amqp->getConnections($connectionName, $properties) - List connections
$amqp->getChannels($channelName, $properties) - List channels
$amqp->getNodes($nodeName, $properties) - Cluster nodes
$amqp->getPolicies($properties) - List policies
$amqp->createPolicy(...) - Create policy
$amqp->updatePolicy(...) - Update policy
$amqp->deletePolicy(...) - Delete policy
$amqp->listFeatureFlags($properties) - List feature flags
$amqp->getFeatureFlag($name, $properties) - Get feature flag

Helpers:

$amqp->getConnectionConfig($connectionName) - Get connection config (use $amqp = app('Amqp'))

Note: For consume(), listen(), rpc(), and all management methods, you must resolve the Amqp instance from the container using $amqp = app('Amqp') or $amqp = resolve('Amqp'). The static facade Amqp:: works for publish() but not for consume() and other instance methods.

Kubernetes & Cloud Native

Liveness / readiness probes

Two complementary surfaces — HTTP routes for sidecars and a CLI for exec probes — both backed by the same HealthState + HealthCheck pair.

1. HTTP routes

Enable in config/amqp.php (or via AMQP_PROBES_ENABLED=true):

'probes' => [
    'enabled' => true,
    'prefix' => 'amqp/health',     // GET /amqp/health/live, /ready, /
    'middleware' => [],             // optional middleware (e.g. ['api'])
    'state_file' => storage_path('framework/amqp-health.json'),
    'heartbeat_age' => 60,          // seconds before liveness flips to 503
    'queues' => ['orders', 'orders.dlq'],
    'max_backlog' => 5000,
],

The service provider registers:

Method	Path	Response
GET	`/amqp/health/live`	200 alive / 503 dead
GET	`/amqp/health/ready`	200 ready / 503 not ready
GET	`/amqp/health/`	combined snapshot

Wire it from your consumer:

use Bschmitt\Amqp\Support\ConsumerLifecycle;
use Bschmitt\Amqp\Support\HealthState;

$lifecycle = (new ConsumerLifecycle())
    ->withHealth(HealthState::instance(storage_path('framework/amqp-health.json')))
    ->registerSignalHandlers();

Amqp::consumeWithLifecycle('orders', $handler, $lifecycle);

2. CLI exec probe (sidecar / `livenessProbe.exec.command`)

# Readiness (default)
php artisan amqp:health
php artisan amqp:health --queue=orders --backlog=1000

# Liveness
php artisan amqp:health --probe=live --heartbeat-age=30

# Combined snapshot
php artisan amqp:health --all --state-file=/var/run/amqp-health.json

Exit codes: 0 = healthy, 1 = unhealthy — exactly what livenessProbe.exec / readinessProbe.exec expect.

Consumer autoscaling recommendations

AutoscalingAdvisor is a pure function that turns a QueueMetrics snapshot into a recommended replica count and a ready-to-paste KEDA trigger:

use Bschmitt\Amqp\Support\AutoscalingAdvisor;

$metrics = Amqp::queueMetrics('orders');

$advice = (new AutoscalingAdvisor())
    ->messagesPerConsumer(100)
    ->maxLagSeconds(15.0)
    ->minReplicas(1)
    ->maxReplicas(20)
    ->advise($metrics);

// $advice['desired_consumers'] => 4
// $advice['action']            => 'scale_up'
// $advice['reasons']           => ['depth 350 / 100 ...', 'lag 20s > 15s -> +1 ...']
// $advice['keda']              => KEDA RabbitMQ trigger spec

CLI form:

php artisan amqp:scale orders orders.priority \
    --per-consumer=100 --max=20 --lag-seconds=15

php artisan amqp:scale orders --keda     # emit only the KEDA trigger
php artisan amqp:scale orders --json --fail-on-scale-up  # CI-friendly

The --keda output drops straight into a ScaledObject manifest under spec.triggers.

Laravel Cloud / managed hosting compatibility

LaravelCloud detects managed environments (Laravel Cloud, Forge, Vapor, Render, Fly.io) and, when amqp.cloud.auto_hydrate is true (default), parses an AMQP_URL / CLOUDAMQP_URL / RABBITMQ_URL DSN into the active connection block on register() — without overwriting explicit config:

AMQP_URL=amqps://app:secret@rabbit.cloudamqp.com/%2Fprod

Explicit AMQP_HOST / AMQP_USER / etc. still win. You can also call the detector directly:

use Bschmitt\Amqp\Support\LaravelCloud;

if (LaravelCloud::isHosted()) {
    logger()->info('amqp hosted env', LaravelCloud::summary());
}

$props = LaravelCloud::parseDsn(env('AMQP_URL'));

Multi-region deployment support

Configure region-scoped connection keys, then resolve / fail over with locality preference:

// config/amqp.php
'regions' => [
    'enabled' => true,
    'connections' => ['production-us', 'production-eu', 'production-apac'],
    'primary' => null,           // null = match LARAVEL_CLOUD_REGION/AWS_REGION
    'cooldown_seconds' => 30,
],

use Bschmitt\Amqp\Support\MultiRegionConnection;

$resolver = app(MultiRegionConnection::class);

// Single attempt with locality preference
$connectionKey = $resolver->pick();              // 'production-us'

// Run a publish across regions until one succeeds
$resolver->withFailover(function ($region) {
    Amqp::publish('orders.created', $payload, ['use' => $region]);
});

// Fan-out to every region (e.g. announcements)
foreach ($resolver->each() as $region) {
    Amqp::publish('events.maintenance', $payload, ['use' => $region]);
}

Failed regions cool down for the configured window before re-entering rotation.

Backward Compatibility

Version 3.4.0 is fully backward compatible with previous versions. All existing code will continue to work without modifications.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Credits

Some concepts were used from mookofe/tail
Built and tested with rabbitmq:3-management Docker image

License

This package is open-sourced software licensed under the MIT license.

Support

For issues, questions, or contributions:

GitHub Issues: https://github.com/bschmitt/laravel-amqp/issues
Documentation: See docs/ directory
FAQ: docs/laravel-amqp.wiki/FAQ.md

Version: 3.4.0
Status: Ready

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Laravel AMQP Package

Features

Core Features

Version 3.1.0+ New Features

Advanced Features

Planned Features

Observability

Developer Experience

Kubernetes & Cloud Native

Enterprise Messaging

Polyglot Microservices

Operations

Security

AI & Modern Features

Requirements

Installation

Composer

Quick Start

Publishing Messages

Consuming Messages

RPC Pattern

Listen to Multiple Routing Keys

Artisan Commands

amqp:work — long-running worker

amqp:consume — process a fixed number of messages

amqp:listen — listen on routing keys

amqp:publish — publish from the CLI

amqp:purge — empty a queue

Retry options on amqp:work

Example handler

Laravel Queue Driver

1. Publish AMQP config

2. Add queue connection

3. Set default queue connection (optional)

4. Run the worker

Delayed & released jobs

Verify the driver

Configuration

Laravel

Lumen

Configuration Example

Documentation

Comprehensive Guides

Wiki Documentation

Module Documentation

Examples

Fanout Exchange

Queue Management

Management API

Retry & Dead-Letter Abstractions

Declare the topology once

Consume with auto-retry / DLQ routing

Pick a policy

Wrap an existing handler manually

Driving the worker from the CLI

Delayed Messaging & Publish Backoff

publishLater() — schedule delivery

PublishBackoff — retry failed publishes

Typed Message Contracts & DTO Serialization

JSON Schema Validation

Production Infrastructure

Exchange topology builder

Quorum & priority queues

Resilient connections & connection pool

Correlation ID & distributed tracing

Consumer lifecycle

SAGA, Events, Middleware & Testing

SAGA workflow

Laravel events

Consume middleware

Fake AMQP driver

Async publishing with publisher confirms

Scale & Interop

RPC abstraction

Cross-service / polyglot messaging

Observability & queue metrics

`amqp:work` — long-running worker

`amqp:consume` — process a fixed number of messages

`amqp:listen` — listen on routing keys

`amqp:publish` — publish from the CLI

`amqp:purge` — empty a queue

Retry options on `amqp:work`

`publishLater()` — schedule delivery

`PublishBackoff` — retry failed publishes

Service Discovery (`Rpc::service(...)`)

Message Contracts (`OrderCreated::dispatch(...)`)

Declarative Retry (`#[Retry]`)

2. CLI exec probe (sidecar / `livenessProbe.exec.command`)