Cache updates API response to reduce redundant HTTP calls

src/Client.php

@@ -79,11 +79,24 @@ public function check_license( $license = '' ) {
 		/**
 		 * Fetch available updates from the remote API.
 		 *
+		 * Uses a short-lived site transient cache to avoid redundant HTTP calls
+		 * when WordPress sets the update_plugins transient multiple times.
+		 *
 		 * @since 1.1
 		 *
+		 * @param int $cache_period Cache duration in seconds. Pass 0 to skip caching.
 		 * @return array|WP_Error Response data or WP_Error on failure.
 		 */
-		public function updates() {
+		public function updates( $cache_period = 600 ) {
+			if ( $cache_period > 0 ) {
+				$cache_key = $this->integration->get_updates_cache_key();
+				$cached    = get_site_transient( $cache_key );
+
+				if ( false !== $cached ) {
+					return $cached;
+				}
+			}
+
 			$args = [];
 			if ( $this->integration->license_enabled ) {
 				$license = $this->integration->get_license_code();
@@ -92,17 +105,36 @@ public function updates() {
 				}
 			}
 
-			return $this->request( 'updates', $args );
+			$response = $this->request( 'updates', $args );
+
+			if ( $cache_period > 0 && ! is_wp_error( $response ) ) {
+				set_site_transient( $cache_key, $response, $cache_period );
+			}
+
+			return $response;
 		}
 
 		/**
 		 * Fetch plugin details from the remote API.
 		 *
+		 * Uses a short-lived site transient cache to avoid redundant HTTP calls
+		 * from plugins_api and the license admin page.
+		 *
 		 * @since 1.1
 		 *
+		 * @param int $cache_period Cache duration in seconds. Pass 0 to skip caching.
 		 * @return array|WP_Error Response data or WP_Error on failure.
 		 */
-		public function details() {
+		public function details( $cache_period = 600 ) {
+			if ( $cache_period > 0 ) {
+				$cache_key = $this->integration->get_details_cache_key();
+				$cached    = get_site_transient( $cache_key );
+
+				if ( false !== $cached ) {
+					return $cached;
+				}
+			}
+
 			$args = [];
 			if ( $this->integration->license_enabled ) {
 				$license = $this->integration->get_license_code();
@@ -111,7 +143,13 @@ public function details() {
 				}
 			}
 
-			return $this->request( 'details', $args );
+			$response = $this->request( 'details', $args );
+
+			if ( $cache_period > 0 && ! is_wp_error( $response ) ) {
+				set_site_transient( $cache_key, $response, $cache_period );
+			}
+
+			return $response;
 		}
 
 		/**

src/Integration.php

@@ -244,6 +244,28 @@ public function get_license_data_key() {
 			return "{$this->license_name}_data";
 		}
 
+		/**
+		 * Retrieves the transient key for caching updates API responses.
+		 *
+		 * @since 1.3
+		 *
+		 * @return string
+		 */
+		public function get_updates_cache_key() {
+			return "{$this->license_name}_updates_cache";
+		}
+
+		/**
+		 * Retrieves the transient key for caching details API responses.
+		 *
+		 * @since 1.3
+		 *
+		 * @return string
+		 */
+		public function get_details_cache_key() {
+			return "{$this->license_name}_details_cache";
+		}
+
 
 		/**
 		 * Get license status.
@@ -353,6 +375,8 @@ public function is_license_active() {
 		 * @return void
 		 */
 		public function refresh_updates_transient() {
+			delete_site_transient( $this->get_updates_cache_key() );
+			delete_site_transient( $this->get_details_cache_key() );
 			set_site_transient( 'update_plugins', get_site_transient( 'update_plugins' ) );
 		}
 
@@ -363,6 +387,9 @@ public function refresh_updates_transient() {
 		 * @return void
 		 */
 		public function clear_updates_transient() {
+			delete_site_transient( $this->get_updates_cache_key() );
+			delete_site_transient( $this->get_details_cache_key() );
+
 			$transient = get_site_transient( 'update_plugins' );
 
 			// Initialize transient if it doesn't exist

src/Updater.php

@@ -224,9 +224,9 @@ public function upgrader_process_complete( $upgrader, $args ) {
 				include_once ABSPATH . 'wp-admin/includes/plugin.php';
 				$plugin = get_plugin_data( WP_PLUGIN_DIR . '/' . $this->integration->product_file );
 
-				$this->integration->clear_updates_transient();
-
 				$this->integration->product_version = $plugin['Version'];
+
+				$this->integration->clear_updates_transient();
 				$this->integration->client->ping();
 			}
 		}