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286 lines
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HTML
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286 lines
7.7 KiB
HTML
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<a class="" href="..">About</a>
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<a class="" href="../type-system/">Introduction</a>
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<a class="" href="../type-system/object-types/">Object Types</a>
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<a class="" href="../type-system/scalar-types/">Scalar Types</a>
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<a class="" href="../type-system/lists-and-nonnulls/">Lists and Non-Null</a>
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<a class="" href="../type-system/interfaces/">Interfaces</a>
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<a class="" href="../type-system/schema/">Schema</a>
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<a class="" href="../executing-queries/">Executing Queries</a>
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<a class="" href="../error-handling/">Handling Errors</a>
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<a class="" href="../data-fetching/">Fetching Data</a>
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<a class="current" href="./">Best Practices</a>
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<ul>
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<li class="toctree-l3"><a href="#config-validation">Config Validation</a></li>
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<li class="toctree-l3"><a href="#type-registry">Type Registry</a></li>
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<a class="" href="../complementary-tools/">Complementary Tools</a>
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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 with 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\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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