Required authorization scopes
The Google Photos Library API contains multiple scopes used to access media items and albums. The media items returned from various calls are different based on which scopes have been requested by the developer.
The photoslibrary.readonly
scope allows access to all media items in the
user's library. The photoslibrary.readonly.appcreateddata
scope allows access
only to media items that were created by the app. For more information, see
Authorization scopes.
Overview
An important use of the API is to list media items that the user has backed up to Google Photos. Items in a particular album or from the user's entire library (the default view in the Google Photos app) can be listed.
You can use filters to select photos that match a specified date, content category, or media type when you list items from the user's library. This feature isn't supported when you list items from albums.
Listing the library and album contents returns a list of media items.
Enrichments that are part of an album
aren't included. Media items describe a photo, video, or other media. A
mediaItem
includes a direct link to the item, a link to the item in
Google Photos, and other relevant metadata. For more information, see
Access media items and
mediaItems
.
Listing albums
You can retrieve a list of the user's albums using albums.list.
REST
Here is a sample request:
GET https://photoslibrary.googleapis.com/v1/albums
The request returns the following result:
{ "albums": [ { "id": "album-id", "title": "album-title", "productUrl": "album-product-url", "coverPhotoBaseUrl": "album-cover-base-url_do-not-use-directly", "coverPhotoMediaItemId": "album-cover-media-item-id", "isWriteable": "whether-you-can-write-to-this-album", "mediaItemsCount": "number-of-media-items-in-album" }, ... ], "nextPageToken": "token-for-pagination" }
Java
try { // Make a request to list all albums in the user's library // Iterate over all the albums in this list // Pagination is handled automatically ListAlbumsPagedResponse response = photosLibraryClient.listAlbums(); for (Album album : response.iterateAll()) { // Get some properties of an album String id = album.getId(); String title = album.getTitle(); String productUrl = album.getProductUrl(); String coverPhotoBaseUrl = album.getCoverPhotoBaseUrl(); // The cover photo media item id field may be empty String coverPhotoMediaItemId = album.getCoverPhotoMediaItemId(); boolean isWritable = album.getIsWriteable(); long mediaItemsCount = album.getMediaItemsCount(); } } catch (ApiException e) { // Handle error }
PHP
try { // Make a request to list all albums in the user's library // Iterate over all the albums in this list // Pagination is handled automatically $response = $photosLibraryClient->listAlbums(); foreach ($response->iterateAllElements() as $album) { // Get some properties of an album $albumId = $album->getId(); $title = $album->getTitle(); $productUrl = $album->getProductUrl(); $coverPhotoBaseUrl = $album->getCoverPhotoBaseUrl(); // The cover photo media item id field may be empty $coverPhotoMediaItemId = $album->getCoverPhotoMediaItemId(); $isWriteable = $album->getIsWriteable(); $totalMediaItems = $album->getTotalMediaItems(); } } catch (\Google\ApiCore\ApiException $e) { // Handle error }
Each returned album has an ID that can be used to retrieve the contents of the album as shown in Listing album contents. It also includes the title and the number of media items it contains.
The productUrl
points to the album in Google Photos that can be a
opened by the user.
The coverPhotoMediaItemId
contains the media item
ID that
represents the cover photo of this album. To the access this cover image, use
coverPhotoBaseUrl
. You shouldn't use the coverPhotoBaseUrl
directly without
specifying additional
parameters.
Albums that have been created in the user's account or added to the user's
account and that your app has shared include an additional shareInfo
property.
For more details, see Share media.
Albums may also have an isWriteable
flag to indicate if you can create media
items in the album. This flag defaults to false
if it is not returned. It is
dependent on the access granted to your application, including the following:
- Who created the album.
- If it's shared or not.
- What scopes the user has approved.
This flag may change if any of these criteria change. For more details, see
Create albums. The
response also contains a nextPageToken
. For more information, see
Pagination.
The response for empty albums varies in that, mediaItemsCount
and
coverPhotoMediaItemId
are set to 0 by default and are omitted from the REST
response. Also note that coverPhotoBaseUrl
points to a default placeholder
image.
Listing library contents
You can list all the media items from the user's Google Photos library. It excludes archived and deleted items. You can list media items based on their content, date, and other properties by applying filters. If the user has not added an item available in the Sharing tab of their Google Photos to their library, that item is not included in this list.
To retrieve a media item, call mediaItems.list.
REST
Here is a sample request:
GET https://photoslibrary.googleapis.com/v1/mediaItems
Content-type: application/json
Authorization: Bearer oauth2-token
{
"pageSize": "100",
}
The GET request returns the following response:
{ "mediaItems": [ ... ], "nextPageToken": "token-for-pagination" }
Java
try { // Make a request to list all media items in the user's library // Iterate over all the retrieved media items // Pagination is handled automatically ListMediaItemsPagedResponse response = photosLibraryClient.listMediaItems(); for (MediaItem item : response.iterateAll()) { // Get some properties of a media item String id = item.getId(); String description = item.getDescription(); String mimeType = item.getMimeType(); String productUrl = item.getProductUrl(); String filename = item.getFilename(); } } catch (ApiException e) { // Handle error }
PHP
try { // Make a request to list all media items in the user's library // Iterate over all the retrieved media items // Pagination is handled automatically $response = $photosLibraryClient->listMediaItems(); foreach ($response->iterateAllElements() as $item) { // Get some properties of a media item /* @var $item \Google\Photos\Library\V1\MediaItem */ $id = $item->getId(); $description = $item->getDescription(); $mimeType = $item->getMimeType(); $productUrl = $item->getProductUrl(); $filename = $item->getFilename(); } } catch (\Google\ApiCore\ApiException $e) { // Handle error }
The response contains a list of media items, ordered from most to least recent.
For more information, see
mediaItems
. It also
contains a nextPageToken
, which is described in more detail in
Pagination.
Listing album contents
To list all of the media items in an album, add the albumId
field to your
search request. For more information about albumId
, see Listing
albums and Listing shared albums. If
the albumId
is invalid, a Bad Request
error is returned. If the ID is valid,
but the album doesn't exist for the authenticated user, a Not Found
error is
returned. For more details regarding error handling,see Performance
tips and Best
practices.
REST
Here is a sample request:
POST https://photoslibrary.googleapis.com/v1/mediaItems:search
Content-type: application/json
Authorization: Bearer oauth2-token
{
"pageSize": "100",
"albumId": "album-id"
}
The POST request returns the following response:
{ "mediaItems": [ ... ], "nextPageToken": "token-for-pagination" }
Java
try { // Make a request to list all media items in an album // Provide the ID of the album as a parameter in the searchMediaItems call // Iterate over all the retrieved media items SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(albumId); for (MediaItem item : response.iterateAll()) { // ... } } catch (ApiException e) { // Handle error }
PHP
try { // Make a request to list all media items in an album // Provide the ID of the album as a parameter in the searchMediaItems call // Iterate over all the retrieved media items $response = $photosLibraryClient->searchMediaItems(['albumId' => $albumId]); foreach ($response->iterateAllElements() as $item) { // ... } } catch (\Google\ApiCore\ApiException $e) { // Handle error }
The response contains a nextPageToken
and the list of media items. Unlike when
listing library contents, the media items are returned by their order in the
album. For more details, see
mediaItems
and Pagination. The user can edit the order in the
Google Photos interface.
If the albumId
is set, you can't apply a filter when listing album contents.
Doing so results in a Bad Request
error.
Listing shared albums
You can retrieve a list of all albums that the user has shared or that have been shared with a user. This is similar to the Sharing tab in the Google Photos app.
Shared albums that the user has added to their Google Photos library are also returned in the listing albums call. Make the following call to list shared albums through the Library API:
REST
Here is a sample request:
GET https://photoslibrary.googleapis.com/v1/sharedAlbums
The request returns the following result:
{ "sharedAlbums": [...] "nextPageToken": "token-for-pagination" }
Java
try { // Make a request to list all albums that have been shared by the user // Iterate over all the albums in this list // Pagination is handled automatically ListSharedAlbumsPagedResponse response = photosLibraryClient.listSharedAlbums(); for (Album album : response.iterateAll()) { // .. } } catch (ApiException e) { // Handle error }
PHP
try { // Make a request to list all albums that have been shared by the user // Iterate over all the albums in this list // Pagination is handled automatically $response = $photosLibraryClient->listSharedAlbums(); foreach ($response->iterateAllElements() as $album) { // ... } } catch (\Google\ApiCore\ApiException $e) { // Handle error }
A list of albums is included in sharedAlbums
. For more information, see
Listing albums. The response also contains a nextPageToken
.
For more information, see Pagination.
Albums that your app has created and shared include an additional shareInfo
property. For more details, see Share
media.
Listing app created albums
You can list albums that have been created by your app with
excludeNonAppCreatedData
set to true
in the following calls:
REST
Here is a GET request to list all the albums from the user's Google Photos library created only by your app:
GET https://photoslibrary.googleapis.com/v1/albums?excludeNonAppCreatedData=true Content-type: application/json Authorization: Bearer oauth2-token
Here is a GET request to list all the shared albums from the user's Google Photos library created only by your app:
GET https://photoslibrary.googleapis.com/v1/sharedAlbums?excludeNonAppCreatedData=true Content-type: application/json Authorization: Bearer oauth2-token
Java
try { // Make a request to list all albums that have been created by your app boolean excludeNonAppCreatedData = true; // Iterate over all the albums in this list // Pagination is handled automatically ListAlbumsPagedResponse response = photosLibraryClient.listAlbums(excludeNonAppCreatedData); for (Album album : response.iterateAll()) { // .. } } catch (ApiException e) { // Handle error } try { // Make a request to list all shared albums that have been created by your app boolean excludeNonAppCreatedData = true; // Iterate over all the albums in this list // Pagination is handled automatically ListSharedAlbumsPagedResponse response = photosLibraryClient.listSharedAlbums(excludeNonAppCreatedData); for (Album album : response.iterateAll()) { // .. } } catch (ApiException e) { // Handle error }
PHP
try { // Make a request to list all albums that have been created by your app $response = $photosLibraryClient->listAlbums(['excludeNonAppCreatedData' => true]); // Iterate over all the albums in this list // Pagination is handled automatically foreach ($response->iterateAllElements() as $album) { // ... } } catch (\Google\ApiCore\ApiException $e) { // Handle error } try { // Make a request to list all shared albums that have been created by your app $response = $photosLibraryClient->listSharedAlbums(['excludeNonAppCreatedData' => true]); // Iterate over all the albums in this list // Pagination is handled automatically foreach ($response->iterateAllElements() as $album) { // ... } } catch (\Google\ApiCore\ApiException $e) { // Handle error }
Pagination for REST
To improve performance, methods that return a large number of results (such as
list methods) may paginate the response. The maximum number of results in each
page is given by the pageSize
parameter.
For calls to mediaItems:search
and mediaItems:list
, the default page size is
25 items. We recommend this page size because it strikes a balance between the
size of the response and the fill rate. The maximum page size for media item
search and list requests is 100 items.
The default and recommended page size when listing albums is 20 albums, with a maximum of 50 albums.
When the number of available results is greater than the page size, the response
includes a nextPageToken
, which indicates to your application that there are
more results to be fetched from the server.
Example
You must append the nextPageToken
to subsequent requests in the parameter
pageToken
, as shown in the following example. Specify the pageToken
together
with other parameters required for the operation, either in the body of the
request, or as a query parameter.
Request #1
{ "pageSize": "5", "filters": { … } }
Response #1
{ "mediaItem": [ … ], "nextPageToken": "next-page-token" }
Request #2
{ "pageSize": "5", "filters": { … }, "pageToken": "page-token" }
Response #2
{ "mediaItem": [ … ], "nextPageToken": "next-page-token" }
Continue this pattern until there are no more nextPageToken
objects.
The nextPageToken
is only valid for the same request. If any parameters are
changed, a previously used nextPageToken
shouldn't be used in the same
request.