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Channel Prefixes

Channel prefixes enable multi-tenant architecture in Laravel Chorus by isolating WebSocket channels and data streams between different organizational units, teams, or tenants.

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What are Channel Prefixes?

Channel prefixes modify WebSocket channel names to create isolated data streams: 
Without prefix: chorus.user.123
With prefix:    chorus.tenant-456.user.123
This ensures users only receive data relevant to their context and provides complete data isolation between tenants.

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Basic Configuration

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Enable Channel Prefixes

Configure a prefix resolver in config/chorus.php: 
<?php

return [
    // ... other config ...
    
    'channel_prefix_resolver' => App\Chorus\Resolvers\TenantPrefixResolver::class,
];

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Frontend Configuration

Pass the channel prefix to your frontend: 
// React setup
<ChorusProvider
    userId={user.id}
    channelPrefix={user.tenant_id} // Channel prefix
    schema={types}
>
    <App />
</ChorusProvider>

// Vanilla JS setup
const chorus = new ChorusClient({
    userId: user.id,
    channelPrefix: user.tenant_id,
    database: types
});

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Creating Prefix Resolvers

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Simple Tenant Resolver

<?php

namespace App\Chorus\Resolvers;

use Pixelsprout\LaravelChorus\Contracts\PrefixResolver;

class TenantPrefixResolver implements PrefixResolver
{
    public function resolve($model = null): ?string
    {
        // Get tenant from authenticated user
        $user = auth()->user();
        
        if (!$user || !$user->tenant_id) {
            return null;
        }
        
        return "tenant-{$user->tenant_id}";
    }
}

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Channel Structure Examples

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Basic Tenant Isolation

Without tenant isolation:
- chorus.user.123
- chorus.table.messages
- chorus.record.messages.456

With tenant isolation:
- chorus.tenant-abc.user.123
- chorus.tenant-abc.table.messages  
- chorus.tenant-abc.record.messages.456

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Project-Based Channels

Project-specific isolation:
- chorus.project-alpha.user.123
- chorus.project-alpha.table.tasks
- chorus.project-alpha.record.tasks.789

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Next Steps

Getting started

Optimize Chorus for large-scale applications
Channel prefixes are essential for building scalable, multi-tenant applications with Laravel Chorus. Proper implementation ensures data isolation, security, and optimal performance across different organizational contexts.