public static function update_api_key() {
		ob_start();

		global $wpdb;

		check_ajax_referer( 'update-api-key', 'security' );

		if ( ! current_user_can( 'manage_woocommerce' ) ) {
			wp_die( -1 );
		}

		$response = array();

		try {
			if ( empty( $_POST['description'] ) ) {
				throw new Exception( __( 'Description is missing.', 'woocommerce' ) );
			}
			if ( empty( $_POST['user'] ) ) {
				throw new Exception( __( 'User is missing.', 'woocommerce' ) );
			}
			if ( empty( $_POST['permissions'] ) ) {
				throw new Exception( __( 'Permissions is missing.', 'woocommerce' ) );
			}

			$key_id      = isset( $_POST['key_id'] ) ? absint( $_POST['key_id'] ) : 0;
			$description = sanitize_text_field( wp_unslash( $_POST['description'] ) );
			$permissions = ( in_array( wp_unslash( $_POST['permissions'] ), array( 'read', 'write', 'read_write' ), true ) ) ? sanitize_text_field( wp_unslash( $_POST['permissions'] ) ) : 'read';
			$user_id     = absint( $_POST['user'] );

			// Check if current user can edit other users.
			if ( $user_id && ! current_user_can( 'edit_user', $user_id ) ) {
				if ( get_current_user_id() !== $user_id ) {
					throw new Exception( __( 'You do not have permission to assign API Keys to the selected user.', 'woocommerce' ) );
				}
			}

			if ( 0 < $key_id ) {
				$data = array(
					'user_id'     => $user_id,
					'description' => $description,
					'permissions' => $permissions,
				);

				$wpdb->update(
					$wpdb->prefix . 'woocommerce_api_keys',
					$data,
					array( 'key_id' => $key_id ),
					array(
						'%d',
						'%s',
						'%s',
					),
					array( '%d' )
				);

				$response                    = $data;
				$response['consumer_key']    = '';
				$response['consumer_secret'] = '';
				$response['message']         = __( 'API Key updated successfully.', 'woocommerce' );
			} else {
				$consumer_key    = 'ck_' . wc_rand_hash();
				$consumer_secret = 'cs_' . wc_rand_hash();

				$data = array(
					'user_id'         => $user_id,
					'description'     => $description,
					'permissions'     => $permissions,
					'consumer_key'    => wc_api_hash( $consumer_key ),
					'consumer_secret' => $consumer_secret,
					'truncated_key'   => substr( $consumer_key, -7 ),
				);

				$wpdb->insert(
					$wpdb->prefix . 'woocommerce_api_keys',
					$data,
					array(
						'%d',
						'%s',
						'%s',
						'%s',
						'%s',
						'%s',
					)
				);

				$key_id                      = $wpdb->insert_id;
				$response                    = $data;
				$response['consumer_key']    = $consumer_key;
				$response['consumer_secret'] = $consumer_secret;
				$response['message']         = __( 'API Key generated successfully. Make sure to copy your new keys now as the secret key will be hidden once you leave this page.', 'woocommerce' );
				$response['revoke_url']      = '<a style="color: #a00; text-decoration: none;" href="' . esc_url( wp_nonce_url( add_query_arg( array( 'revoke-key' => $key_id ), admin_url( 'admin.php?page=wc-settings&tab=advanced&section=keys' ) ), 'revoke' ) ) . '">' . __( 'Revoke key', 'woocommerce' ) . '</a>';
			}
		} catch ( Exception $e ) {
			wp_send_json_error( array( 'message' => $e->getMessage() ) );
		}

		// wp_send_json_success must be outside the try block not to break phpunit tests.
		wp_send_json_success( $response );
	}