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229 lines
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HTML
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229 lines
7.2 KiB
HTML
Executable File
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<h1 id="config-validation">Config Validation</h1>
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<p>Defining types using arrays may be error-prone, but <strong>graphql-php</strong> provides config validation
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tool to report when config has unexpected structure. </p>
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<p>This validation tool is <strong>disabled by default</strong> because it is time-consuming operation which only
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makes sense during development.</p>
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<p>To enable validation - call: <code>GraphQL\Type\Definition\Config::enableValidation();</code> in your bootstrap
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but make sure to restrict it to debug/development mode only.</p>
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<h1 id="type-registry">Type Registry</h1>
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<p><strong>graphql-php</strong> expects that each type in Schema is presented by single instance. Therefore
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if you define your types as separate PHP classes you need to ensure that each type is referenced only once.</p>
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<p>Technically you can create several instances of your type (for example for tests), but <code>GraphQL\Type\Schema</code>
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will throw on attempt to add different instances with the same name.</p>
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<p>There are several ways to achieve this depending on your preferences. We provide reference
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implementation below that introduces TypeRegistry class:</p>
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