openstack/swift
Code Issues Proposed changes
5126cc844a
swift/api-ref/source/storage-container-services.inc
Donagh McCabe 9ce596a5a6 Corrections for the API specifications in api-ref 
Fixes a number of technical issues with the api-ref section
including:

- Added missing headers
- The header descriptions were made specific to whether they
  are used in requests or responses and the verb in question
  (example: Content-Length in object HEAD is the object size,
  not the response body length).
- Added references to API features such as bulk delete.
- Many typographical fixes (e.g., spaces in the middle
  of header names)
- Restored xml and json account/container listing
  examples.

The following areas were not updated and it is proposed
to defer them to a subsequent update. This is because
I don't have time or their merit is debatable:

- ACLs (as used in a Keystone context) are not
  described.
- Account create/delete is not described.
- I left List Endpoints as-is.

Change-Id: I315b4e550b7d10880fbc00fce9311127ba609c2d
2016-09-14 10:10:20 +01:00

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.. -*- rst -*-
==========
Containers
==========
Lists objects in a container. Creates, shows details for, and
deletes containers. Creates, updates, shows, and deletes container
metadata. For more information and concepts about
containers see `Object Storage API overview
<http://docs.openstack.org/developer/swift/api/object_api_v1_overview.html>`_.
Show container details and list objects
=======================================
.. rest_method:: GET /v1/{account}/{container}
Shows details for a container and lists objects, sorted by name, in the container.
Specify query parameters in the request to filter the list and
return a subset of objects. Omit query parameters to return
a list of objects that are stored in the container,
up to 10,000 names. The 10,000 maximum value is configurable. To
view the value for the cluster, issue a GET ``/info`` request.
Example requests and responses:
- ``OK (200)``. Success. The response body lists the objects.
- ``No Content (204)``. Success. The response body shows no objects.
Either the container has no objects or you are paging through a
long list of objects by using the ``marker``, ``limit``, or
``end_marker`` query parameter and you have reached the end of
the list.
If the container does not exist, the call returns the ``Not Found
(404)`` response code.
Normal response codes: 200
Error response codes:416,404,204,
Request
-------
.. rest_parameters:: parameters.yaml
- account: account
- container: container
- limit: limit
- marker: marker
- end_marker: end_marker
- prefix: prefix
- format: format
- delimiter: delimiter
- path: path
- X-Auth-Token: X-Auth-Token
- X-Service-Token: X-Service-Token
- X-Newest: X-Newest
- Accept: Accept
- X-Container-Meta-Temp-URL-Key: X-Container-Meta-Temp-URL-Key
- X-Container-Meta-Temp-URL-Key-2: X-Container-Meta-Temp-URL-Key-2
- X-Trans-Id-Extra: X-Trans-Id-Extra
- X-Storage-Policy: X-Storage-Policy
Response Parameters
-------------------
.. rest_parameters:: parameters.yaml
- X-Container-Meta-name: X-Container-Meta-name
- Content-Length: Content-Length_listing_resp
- X-Container-Object-Count: X-Container-Object-Count
- X-Container-Bytes-Used: X-Container-Bytes-Used
- Accept-Ranges: Accept-Ranges
- X-Container-Meta-Temp-URL-Key: X-Container-Meta-Temp-URL-Key
- X-Container-Meta-Temp-URL-Key-2: X-Container-Meta-Temp-URL-Key-2
- X-Storage-Policy: X-Storage-Policy
- X-Container-Read: X-Container-Read_resp
- X-Container-Write: X-Container-Write_resp
- X-Container-Sync-Key: X-Container-Sync-Key_resp
- X-Container-Sync-To: X-Container-Sync-To_resp
- X-Versions-Location: X-Versions-Location_resp
- X-Versions-Mode: X-Versions-Mode_resp
- X-Timestamp: X-Timestamp
- X-Trans-Id: X-Trans-Id
- Content_Type: Content-Type_listing_resp
- Date: Date
- hash: hash
- last_modified: last_modified
- content_type: content_type
- bytes: bytes
- name: name
Response Example format=json
----------------------------
.. literalinclude:: samples/objects-list-http-response-json.txt
.. literalinclude:: samples/objects-list-response.json
Response Example format=xml
---------------------------
.. literalinclude:: samples/objects-list-http-response-xml.txt
.. literalinclude:: samples/objects-list-response.xml
Create container
================
.. rest_method:: PUT /v1/{account}/{container}
Creates a container.
You do not need to check whether a container already exists before
issuing a PUT operation because the operation is idempotent: It
creates a container or updates an existing container, as
appropriate.
To create, update, or delete a custom metadata item, use the ``X
-Container-Meta-{name}`` header, where ``{name}`` is the name of
the metadata item.
Metadata keys (the name of the metadata) must be treated as case-insensitive
at all times. These keys can contain ASCII 7-bit characters that are not
control (0-31) characters, DEL, or a separator character, according to
`HTTP/1.1 <http://www.w3.org/Protocols/rfc2616/rfc2616.html>`_ .
The underscore character is silently converted to a hyphen.
.. include:: metadata_header_encoding.inc
Example requests and responses:
- Create a container with no metadata:
::
curl -i $publicURL/steven -X PUT -H "Content-Length: 0" -H "X-Auth-Token: $token"
::
HTTP/1.1 201 Created
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx7f6b7fa09bc2443a94df0-0052d58b56
Date: Tue, 14 Jan 2014 19:09:10 GMT
- Create a container with metadata:
::
curl -i $publicURL/marktwain -X PUT -H "X-Auth-Token: $token" -H "X-Container-Meta-Book: TomSawyer"
::
HTTP/1.1 201 Created
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx06021f10fc8642b2901e7-0052d58f37
Date: Tue, 14 Jan 2014 19:25:43 GMT
- Create a container with an ACL to allow anybody to get an object in the
marktwain container:
::
curl -i $publicURL/marktwain -X PUT -H "X-Auth-Token: $token" -H "X-Container-Read: .r:*"
::
HTTP/1.1 201 Created
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx06021f10fc8642b2901e7-0052d58f37
Date: Tue, 14 Jan 2014 19:25:43 GMT
Error response codes:201,204,
Request
-------
.. rest_parameters:: parameters.yaml
- account: account
- container: container
- X-Auth-Token: X-Auth-Token
- X-Service-Token: X-Service-Token
- X-Container-Read: X-Container-Read
- X-Container-Write: X-Container-Write
- X-Container-Sync-To: X-Container-Sync-To
- X-Container-Sync-Key: X-Container-Sync-Key
- X-Versions-Location: X-Versions-Location
- X-Versions-Mode: X-Versions-Mode
- X-Container-Meta-name: X-Container-Meta-name_req
- X-Container-Meta-Access-Control-Allow-Origin: X-Container-Meta-Access-Control-Allow-Origin
- X-Container-Meta-Access-Control-Max-Age: X-Container-Meta-Access-Control-Max-Age
- X-Container-Meta-Access-Control-Expose-Headers: X-Container-Meta-Access-Control-Expose-Headers
- X-Container-Meta-Temp-URL-Key: X-Container-Meta-Temp-URL-Key
- X-Container-Meta-Temp-URL-Key-2: X-Container-Meta-Temp-URL-Key-2
- X-Trans-Id-Extra: X-Trans-Id-Extra
- X-Storage-Policy: X-Storage-Policy
Response Parameters
-------------------
.. rest_parameters:: parameters.yaml
- Date: Date
- X-Timestamp: X-Timestamp
- Content-Length: Content-Length_cud_resp
- Content-Type: Content-Type_cud_resp
- X-Trans-Id: X-Trans-Id
Create, update, or delete container metadata
============================================
.. rest_method:: POST /v1/{account}/{container}
Creates, updates, or deletes custom metadata for a container.
To create, update, or delete a custom metadata item, use the ``X
-Container-Meta-{name}`` header, where ``{name}`` is the name of
the metadata item.
Metadata keys (the name of the metadata) must be treated as case-insensitive
at all times. These keys can contain ASCII 7-bit characters that are not
control (0-31) characters, DEL, or a separator character, according to
`HTTP/1.1 <http://www.w3.org/Protocols/rfc2616/rfc2616.html>`_ .
The underscore character is silently converted to a hyphen.
.. include:: metadata_header_encoding.inc
Subsequent requests for the same key and value pair overwrite the
previous value.
To delete container metadata, send an empty value for that header,
such as for the ``X-Container-Meta-Book`` header. If the tool you
use to communicate with Object Storage, such as an older version of
cURL, does not support empty headers, send the ``X-Remove-
Container-Meta-{name}`` header with an arbitrary value. For
example, ``X-Remove-Container-Meta-Book: x``. The operation ignores
the arbitrary value.
If the container already has other custom metadata items, a request
to create, update, or delete metadata does not affect those items.
Example requests and responses:
- Create container metadata:
::
curl -i $publicURL/marktwain -X POST -H "X-Auth-Token: $token" -H "X-Container-Meta-Author: MarkTwain" -H "X-Container-Meta-Web-Directory-Type: text/directory" -H "X-Container-Meta-Century: Nineteenth"
::
HTTP/1.1 204 No Content
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx05dbd434c651429193139-0052d82635
Date: Thu, 16 Jan 2014 18:34:29 GMT
- Update container metadata:
::
curl -i $publicURL/marktwain -X POST -H "X-Auth-Token: $token" -H "X-Container-Meta-Author: SamuelClemens"
::
HTTP/1.1 204 No Content
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: txe60c7314bf614bb39dfe4-0052d82653
Date: Thu, 16 Jan 2014 18:34:59 GMT
- Delete container metadata:
::
curl -i $publicURL/marktwain -X POST -H "X-Auth-Token: $token" -H "X-Remove-Container-Meta-Century: x"
::
HTTP/1.1 204 No Content
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx7997e18da2a34a9e84ceb-0052d826d0
Date: Thu, 16 Jan 2014 18:37:04 GMT
If the request succeeds, the operation returns the ``No Content
(204)`` response code.
To confirm your changes, issue a show container metadata request.
Error response codes:204,
Request
-------
.. rest_parameters:: parameters.yaml
- account: account
- container: container
- X-Auth-Token: X-Auth-Token
- X-Service-Token: X-Service-Token
- X-Container-Read: X-Container-Read
- X-Remove-Container-name: X-Remove-Container-name
- X-Container-Write: X-Container-Write
- X-Container-Sync-To: X-Container-Sync-To
- X-Container-Sync-Key: X-Container-Sync-Key
- X-Versions-Location: X-Versions-Location
- X-Versions-Mode: X-Versions-Mode
- X-Remove-Versions-Location: X-Remove-Versions-Location
- X-Container-Meta-name: X-Container-Meta-name_req
- X-Container-Meta-Access-Control-Allow-Origin: X-Container-Meta-Access-Control-Allow-Origin
- X-Container-Meta-Access-Control-Max-Age: X-Container-Meta-Access-Control-Max-Age
- X-Container-Meta-Access-Control-Expose-Headers: X-Container-Meta-Access-Control-Expose-Headers
- X-Container-Meta-Quota-Bytes: X-Container-Meta-Quota-Bytes
- X-Container-Meta-Quota-Count: X-Container-Meta-Quota-Count
- X-Container-Meta-Web-Directory-Type: X-Container-Meta-Web-Directory-Type
- X-Container-Meta-Temp-URL-Key: X-Container-Meta-Temp-URL-Key
- X-Container-Meta-Temp-URL-Key-2: X-Container-Meta-Temp-URL-Key-2
- X-Trans-Id-Extra: X-Trans-Id-Extra
Response Parameters
-------------------
.. rest_parameters:: parameters.yaml
- Date: Date
- X-Timestamp: X-Timestamp
- Content-Length: Content-Length_cud_resp
- Content-Type: Content-Type_cud_resp
- X-Trans-Id: X-Trans-Id
Show container metadata
=======================
.. rest_method:: HEAD /v1/{account}/{container}
Shows container metadata, including the number of objects and the total bytes of all objects stored in the container.
Show container metadata request:
::
curl -i $publicURL/marktwain -X HEAD -H "X-Auth-Token: $token"
::
HTTP/1.1 204 No Content
Content-Length: 0
X-Container-Object-Count: 1
Accept-Ranges: bytes
X-Container-Meta-Book: TomSawyer
X-Timestamp: 1389727543.65372
X-Container-Meta-Author: SamuelClemens
X-Container-Bytes-Used: 14
Content-Type: text/plain; charset=utf-8
X-Trans-Id: tx0287b982a268461b9ec14-0052d826e2
Date: Thu, 16 Jan 2014 18:37:22 GMT
If the request succeeds, the operation returns the ``No Content
(204)`` response code.
Error response codes:204,
Request
-------
.. rest_parameters:: parameters.yaml
- account: account
- container: container
- X-Auth-Token: X-Auth-Token
- X-Service-Token: X-Service-Token
- X-Newest: X-Newest
- X-Trans-Id-Extra: X-Trans-Id-Extra
Response Parameters
-------------------
.. rest_parameters:: parameters.yaml
- X-Container-Meta-name: X-Container-Meta-name
- Content-Length: Content-Length_cud_resp
- X-Container-Object-Count: X-Container-Object-Count
- X-Container-Bytes-Used: X-Container-Bytes-Used
- X-Container-Write: X-Container-Write_resp
- X-Container-Meta-Quota-Bytes: X-Container-Meta-Quota-Bytes
- X-Container-Meta-Quota-Count: X-Container-Meta-Quota-Count
- Accept-Ranges: Accept-Ranges
- X-Container-Read: X-Container-Read_resp
- X-Container-Meta-Access-Control-Expose-Headers: X-Container-Meta-Access-Control-Expose-Headers
- X-Container-Meta-Temp-URL-Key: X-Container-Meta-Temp-URL-Key
- X-Container-Meta-Temp-URL-Key-2: X-Container-Meta-Temp-URL-Key-2
- X-Timestamp: X-Timestamp
- X-Container-Meta-Access-Control-Allow-Origin: X-Container-Meta-Access-Control-Allow-Origin
- X-Container-Meta-Access-Control-Max-Age: X-Container-Meta-Access-Control-Max-Age
- X-Container-Sync-Key: X-Container-Sync-Key_resp
- X-Container-Sync-To: X-Container-Sync-To_resp
- Date: Date
- X-Trans-Id: X-Trans-Id
- Content-Type: Content-Type_cud_resp
- X-Versions-Location: X-Versions-Location_resp
- X-Versions-Mode: X-Versions-Mode_resp
- X-Storage-Policy: X-Storage-Policy
Delete container
================
.. rest_method:: DELETE /v1/{account}/{container}
Deletes an empty container.
This operation fails unless the container is empty. An empty
container has no objects.
Delete the ``steven`` container:
::
curl -i $publicURL/steven -X DELETE -H "X-Auth-Token: $token"
If the container does not exist, the response is:
::
HTTP/1.1 404 Not Found
Content-Length: 70
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx4d728126b17b43b598bf7-0052d81e34
Date: Thu, 16 Jan 2014 18:00:20 GMT
If the container exists and the deletion succeeds, the response is:
::
HTTP/1.1 204 No Content
Content-Length: 0
Content-Type: text/html; charset=UTF-8
X-Trans-Id: txf76c375ebece4df19c84c-0052d81f14
Date: Thu, 16 Jan 2014 18:04:04 GMT
If the container exists but is not empty, the response is:
::
HTTP/1.1 409 Conflict
Content-Length: 95
Content-Type: text/html; charset=UTF-8
X-Trans-Id: tx7782dc6a97b94a46956b5-0052d81f6b
Date: Thu, 16 Jan 2014 18:05:31 GMT
<html>
<h1>Conflict
</h1>
<p>There was a conflict when trying to complete your request.
</p>
</html>
Error response codes:404,204,409,
Request
-------
.. rest_parameters:: parameters.yaml
- account: account
- container: container
- X-Auth-Token: X-Auth-Token
- X-Service-Token: X-Service-Token
- X-Trans-Id-Extra: X-Trans-Id-Extra
Response Parameters
-------------------
.. rest_parameters:: parameters.yaml
- Date: Date
- X-Timestamp: X-Timestamp
- Content-Length: Content-Length_cud_resp
- Content-Type: Content-Type_cud_resp
- X-Trans-Id: X-Trans-Id
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