EnumerateChildren (containers)

Artikel
03/04/2023

iOS and Android Desktop

GET /wopi/containers/(container_id)/children

The EnumerateChildren operation enumerates all the immediate children of a given container. Note that paging is deliberately not supported by this operation. Responses are expected to include all immediate children of the container.

Parameters

container_id (string) – A string that specifies a container ID of a container managed by host. This string must be URL safe.

Query Parameters

access_token (string) – An access token that the host will use to determine whether the request is authorized.

Request Headers

X-WOPI-FileExtensionFilterList –

A string value that the host must use to filter the returned child files. This header must be a list of comma-separated file extensions with a leading dot (.). There must be no whitespace and no trailing comma in the string. Wildcard characters are not permitted.

If this header is included, the host must only return child files whose file extensions match the filter list, based on a case-insensitive match. For example, if this header is set to the value .doc,.docx, the host should include only files with the doc or docx file extension.

This header value only affects the child files that are returned; it does not have any effect on child containers.

Status Codes

200 OK – Success
401 Unauthorized – Invalid access token
404 Not Found – Resource not found/user unauthorized
500 Internal Server Error – Server error
501 Not Implemented – Operation not supported

Note

Standard WOPI request and response headers

In addition to the request/response headers listed here, this operation may also use the Standard WOPI request and response headers.

Response

The response to a EnumerateChildren call is JSON.

All optional values default to the following values based on their type:

Type	Default value
Boolean	`false`
String	The empty string
Integer/Long	Varies; see individual properties for details
Array	Empty array

Important

No properties should be set to null. If you do not wish to set a property, simply omit it from the response; the WOPI clients will use the default value in these cases.

Required response properties

The following properties must be present in all EnumerateChildren responses:

ChildContainers - An array of JSON-formatted objects containing the following properties:
- Name - The name of the container without a path. This value should match the Name property in a CheckContainerInfo response. Required.
- Url - A URI to the container, including a valid access token. Required.
  
  Caution
  
  This property includes an access token, and thus has important security implications. See Preventing ‘token trading’ for more details.
If there are no child containers, this property should be an empty array.
ChildFiles - An array of JSON-formatted objects containing the following properties:
- Name - Should match the BaseFileName property in CheckFileInfo. Required.
- Size - Should match the Size property in CheckFileInfo. Required.
- Url - A URI to the file, including a valid access token. Required.
Caution

This property includes an access token, and thus has important security implications. See Preventing ‘token trading’ for more details.
- Version - Should match the Version property in CheckFileInfo. Required.
- LastModifiedTime - Should match the LastModifiedTime property in CheckFileInfo. Optional.
If there are no child files, this property should be an empty array.

Sample response:
```
{
  "ChildContainers": [
    {
      "Url": "http://.../wopi*/containers/<containerId>?access_token=<per_file_token>",
      "Name": "FolderName"
    },
    {
      "Url": "http://.../wopi*/containers/<containerId2>?access_token=<per_file_token2>",
      "Name": "FolderName2"
    }
  ],
  "ChildFiles": [
    {
      "Url": "http://.../wopi*/files/<fileId>?access_token=<per_file_token>",
      "Name": "FileName",
      "Version": "version1",
      "Size": 7,
      "LastModifiedTime": "time last modified"
    }
  ]
}
```

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