W3cubDocs

bookmarks.getSubTree()

The bookmarks.getSubTree() method asynchronously retrieves a bookmarks.BookmarkTreeNode, given its ID.

If the item is a folder, you can access all its descendants recursively using its children property and the children property of its descendants, if they are themselves folders.

This is an asynchronous function that returns a Promise.

Syntax

var gettingSubTree = browser.bookmarks.getSubTree(
  id                     // string
)

Parameters

id: A string specifying the ID of the root of the subtree to retrieve.

Return value

A Promise that will be fulfilled with an array containing a single object, a bookmarks.BookmarkTreeNode object, representing the item with the given ID.

If a node corresponding to id could not be found, the promise will be rejected with an error message.

Examples

This example recursively prints out the subtree under a given node:

function makeIndent(indentLength) {
  return ".".repeat(indentLength);
}

function logItems(bookmarkItem, indent) {
  if (bookmarkItem.url) {
    console.log(makeIndent(indent) + bookmarkItem.url);
  } else {
    console.log(makeIndent(indent) + "Folder: " + bookmarkItem.id);
    indent++;
  }
  if (bookmarkItem.children) {
    for (var child of bookmarkItem.children) {
      logItems(child, indent);
    }
  }
}

function logSubTree(bookmarkItems) {
  logItems(bookmarkItems[0], 0);
}

function onRejected(error) {
  console.log(`An error: ${error}`);
}

var subTreeID = "root_____";

var gettingSubTree = browser.bookmarks.getSubTree(subTreeID);
gettingSubTree.then(logSubTree, onRejected);

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`getSubTree`	Yes	79	45	?	Yes	No	?	?	No	?	?	?

Note: This API is based on Chromium's chrome.bookmarks API. This documentation is derived from bookmarks.json in the Chromium code.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.

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https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/bookmarks/getSubTree