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<title>[44568] trunk: REST API: Encourage proper usage of `register_rest_route()`.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/44568">44568</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/44568","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>desrosj</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2019-01-11 18:18:41 +0000 (Fri, 11 Jan 2019)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>REST API: Encourage proper usage of `register_rest_route()`.
Calling `register_rest_route()` too early in the loading process has the potential to cause some unintentional problems and pitfalls. Because `register_rest_route()` calls `rest_get_server()` (which creates the `WP_REST_Server` instance), calling the function directly and/or before `rest_api_init` should be discouraged.
For example, if `register_rest_route ()` is called on `init`, the REST API server instance is set up (and all functions added to `rest_api_init` and other related hooks are invoked), even though the current request may not be a REST request. Also, if `register_rest_route()` is called even earlier (say, in an `mu-plugin` file), required endpoints may be missing since normal plugins have not yet been loaded and have not had a chance to register their own action hooks.
This adds a `_doing_it_wrong()` notice the first time `register_rest_route()` is called before `rest_api_init` in a request to encourage best practices for registering REST API routes.
Props kraftbj, desrosj, timothyblynjacobs.
Fixes <a href="https://core.trac.wordpress.org/ticket/45265">#45265</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesrestapiphp">trunk/src/wp-includes/rest-api.php</a></li>
<li><a href="#trunktestsphpunittestsrestapiphp">trunk/tests/phpunit/tests/rest-api.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpincludesrestapiphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/rest-api.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/rest-api.php 2019-01-11 13:55:28 UTC (rev 44567)
+++ trunk/src/wp-includes/rest-api.php 2019-01-11 18:18:41 UTC (rev 44568)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -17,7 +17,10 @@
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px"> * Registers a REST API route.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * Note: Do not use before the {@see 'rest_api_init'} hook.
+ *
</ins><span class="cx" style="display: block; padding: 0 10px"> * @since 4.4.0
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @since 5.1.0 Added a _doing_it_wrong() notice when not called on or after the rest_api_init hook.
</ins><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @param string $namespace The first URL segment after core prefix. Should be unique to your package/plugin.
</span><span class="cx" style="display: block; padding: 0 10px"> * @param string $route The base URL for route you are adding.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -41,6 +44,10 @@
</span><span class="cx" style="display: block; padding: 0 10px"> return false;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( ! did_action( 'rest_api_init' ) ) {
+ _doing_it_wrong( 'register_rest_route', __( 'REST API routes must be registered on the rest_api_init action.' ), '5.1.0' );
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( isset( $args['args'] ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $common_args = $args['args'];
</span><span class="cx" style="display: block; padding: 0 10px"> unset( $args['args'] );
</span></span></pre></div>
<a id="trunktestsphpunittestsrestapiphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/rest-api.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/rest-api.php 2019-01-11 13:55:28 UTC (rev 44567)
+++ trunk/tests/phpunit/tests/rest-api.php 2019-01-11 18:18:41 UTC (rev 44568)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -14,9 +14,11 @@
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> class Tests_REST_API extends WP_UnitTestCase {
</span><span class="cx" style="display: block; padding: 0 10px"> public function setUp() {
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ parent::setUp();
+
</ins><span class="cx" style="display: block; padding: 0 10px"> // Override the normal server with our spying server.
</span><span class="cx" style="display: block; padding: 0 10px"> $GLOBALS['wp_rest_server'] = new Spy_REST_Server();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- parent::setUp();
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ do_action( 'rest_api_init', $GLOBALS['wp_rest_server'] );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> public function tearDown() {
</span></span></pre>
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