Assets Server REST API - ZIP download – Help Center

GET/POST

http://yourserver.com/zip/<filename>.zip
    ?downloadKind=<original|preview>
    &assetIds=<comma-separated asset ids>

What does it do?

Download originals or previews as a ZIP file.

This makes it possible to package multiple files into a single .zip file. Depending on the browser this will be downloaded as .zip or folder on the local file system.

Log in requirement

Before being able to request information from Assets Server by using a GET request or make changes to the system through a POST request, a log in to Assets Server is required. For information about the available APIs for logging in, see Assets Server REST API - introduction.

Parameters

assetIds	List of asset ids for the ZIP file. Either 'q', 'assetIds' or 'folderPath' must be specified. Optional.
q	Select assets for the ZIP file using a query string instead of having to pass a long list of ids. Either 'q', 'assetIds' or 'folderPath' must be specified. Optional.
folderPath	Select assets in the folder path for the ZIP file. Either 'q', 'assetIds' or 'folderPath' must be specified. Optional.
num	Maximum number of assets to include in the produced ZIP file. Only used in combination with 'q'. When 'assetIds' is used instead, the number of assetIds is used as 'num'. Default value is 50. Optional.
downloadKind	The type of the files that are included in the archive. Possible values are: downloadKind=original downloadKind=preview Either 'downloadKind' or 'downloadPresetId' or 'previewFormat' must be specified. Optional.
downloadPresetId	Id of the download Preset to use. Assets specified in assetIds or matched by a query that do not support the Preset download format will not be included in the ZIP file. For example: an mp3 file cannot be downloaded in JPG format. Either 'downloadKind' or 'downloadPresetId' or 'previewFormat' must be specified. Optional.
previewFormat	Custom preview format specification for download. For description of the format, see Assets Server API - Previews. Assets specified in assetIds or matched by a query that do not support the format will not be included in the ZIP file. For example: an mp3 file cannot be downloaded in JPG format. Either 'downloadKind' or 'downloadPresetId' or 'previewFormat' must be specified. Optional.
compress	Customize the ZIP compression level (0-9). 0 = no compression, store 1 = fastest compression 9 = best compression Optional (when not specified, a default compression of 5 is used).
stream	Set to 'true' to write the stream of the ZIP file directly to the browser without creating a temporary file on the server. This will prevent the delay before the download starts, but will also prevent the browser from being able to provide proper download progress, since the total size of the ZIP file is not known before the download starts. Default value is 'true'. Optional.

Allowed combinations and consistency check

The following are not allowed to send together:

assetIds and/or q and/or folderPath
downloadKind and/or downloadPresetId and/or previewFormat

The API checks that one and only one of parameters from those groups is specified.

Allowed combinations:

/zip/archive.zip?assetIds=...&downloadKind=original
/zip/archive.zip?assetIds=...&downloadKind=preview
/zip/archive.zip?assetIds=...&downloadPresetId=...
/zip/archive.zip?assetIds=...&previewFormat=<custom previewName>
/zip/archive.zip?q=...&num=10&downloadKind=original or /zip/archive.zip?q=...&downloadKind=original
/zip/archive.zip?q=...&downloadKind=preview (or with num)
/zip/archive.zip?q=...&downloadPresetId=... (or with num)
/zip/archive.zip?q=...&previewFormat=<custom previewName> (or with num)
/zip/archive.zip?folderPath=...&num=10&downloadKind=original or /zip/archive.zip?folderPath=...&downloadKind=original
/zip/archive.zip?folderPath=...&downloadKind=preview (or with num)
/zip/archive.zip?folderPath=...&downloadPresetId=... (or with num)
/zip/archive.zip?folderPath=...&previewFormat=<custom previewName> (or with num)

Errors

In the following situations, the API returns a HTTP status code together with additional information:

Error	Error details	Scenario
(Bad Request) 400	Required String parameter 'downloadKind' is not present.	When incorrect parameters or a combination of incorrect parameters are specified.
(Not Found) 404	No assets found to include in ZIP.	When no assets are selected.
(Bad Request) 400	DownloadPreset with given ID is not found.	When downloadPresetId does not exists or is not accessible for the user.
(Not Found) 404	No previews can be included in ZIP.	When no previews are available to be included in the ZIP file.

Example

This call downloads an archive named wildlife.zip containing previews of assets with ids 'EgNUCWzhqBh8DxwRUtkzQ5,FpERTjYia2X81GoYQi7btF'.

zip

http://demo.assets-server.com/zip/wildlife.zip
    ?downloadKind=preview
    &assetIds=EgNUCWzhqBh8DxwRUtkzQ5,FpERTjYia2X81GoYQi7btF