Your Name
51 lines
1.5 KiB
PHP
51 lines
1.5 KiB
PHP
<?php
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namespace Nuwave\Lighthouse\Subscriptions\Directives;
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use Closure;
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use Nuwave\Lighthouse\Execution\Utils\Subscription;
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use Nuwave\Lighthouse\Schema\Directives\BaseDirective;
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use Nuwave\Lighthouse\Schema\Values\FieldValue;
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use Nuwave\Lighthouse\Support\Contracts\FieldMiddleware;
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class BroadcastDirective extends BaseDirective implements FieldMiddleware
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{
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public static function definition(): string
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{
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return /** @lang GraphQL */ <<<'GRAPHQL'
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"""
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Broadcast the results of a mutation to subscribed clients.
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"""
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directive @broadcast(
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"""
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Name of the subscription that should be retriggered as a result of this operation.
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"""
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subscription: String!
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"""
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Specify whether or not the job should be queued.
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This defaults to the global config option `lighthouse.subscriptions.queue_broadcasts`.
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"""
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shouldQueue: Boolean
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) repeatable on FIELD_DEFINITION
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GRAPHQL;
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}
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public function handleField(FieldValue $fieldValue, Closure $next): FieldValue
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{
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// Ensure this is run after the other field middleware directives
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$fieldValue = $next($fieldValue);
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$subscriptionField = $this->directiveArgValue('subscription');
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$shouldQueue = $this->directiveArgValue('shouldQueue');
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$fieldValue->resultHandler(function ($root) use ($subscriptionField, $shouldQueue) {
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Subscription::broadcast($subscriptionField, $root, $shouldQueue);
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return $root;
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});
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return $fieldValue;
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}
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}
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