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API Documentation
====================================================================================================================
Implements API for IT4I SCS Information System.
There is a PyPI package which provides simple user-friendly shell
interface to call API requests and display their respond. Package is
available on
<a href="https://pypi.org/project/it4i.portal.clients" class="uri" class="reference external">https://pypi.org/project/it4i.portal.clients</a>
Limits are placed on the number of requests you may make to IT4I API.
Rate limit can be changed without any warning at any time, but the
default is 6 requests per minute. Exceeding the limit will lead to your
ip address being temporarily blocked from making further requests. The
block will automatically be lifted by waiting an hour.
- api revision: `cbf07b6f / 2019-04-26 10:13:19 +0200`
- api version: `0.9-168-gcbf07b6`
- apidoc building date: `2019-04-26 08:15:31 +0000`
Summary
-------------------------------------------------------------------------------------
<table>
<colgroup>
<col width="20%" />
<col width="40%" />
<col width="40%" />
</colgroup>
<thead>
<tr class="header">
<th>Resource</th>
<th>Operation</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td>check-access</td>
<td><a href="#post--api-v1-check-access" class="reference external">POST /api/v1/check-access</a></td>
<td>Access check to queue</td>
</tr>
<tr class="even">
<td>dedicated-time</td>
<td><a href="#get--api-v1-dedicated-time-(cluster_type)" class="reference external">GET /api/v1/dedicated-time/(cluster_type)</a></td>
<td>HPC dedicated time</td>
</tr>
<tr class="odd">
<td>dedicated-time-calendar</td>
<td><a href="#get--api-v1-dedicated-time-calendar" class="reference external">GET /api/v1/dedicated-time-calendar</a></td>
<td>dedicated time calendar</td>
</tr>
<tr class="even">
<td>fs-usage</td>
<td><a href="#post--api-v1-fs-usage" class="reference external">POST /api/v1/fs-usage</a></td>
<td>Show filesystem usage</td>
</tr>
<tr class="odd">
<td>it4ifree</td>
<td><a href="#post--api-v1-it4ifree-(login)" class="reference external">POST /api/v1/it4ifree/(login)</a></td>
<td>Free account resources</td>
</tr>
<tr class="even">
<td>motd</td>
<td><a href="#get--api-v1-motd-(category)" class="reference external">GET /api/v1/motd/(category)</a></td>
<td>SCS messages of the day</td>
</tr>
<tr class="odd">
<td>ping</td>
<td><a href="#get--api-v1-ping" class="reference external">GET /api/v1/ping</a></td>
<td>Connection test</td>
</tr>
<tr class="even">
<td>version</td>
<td><a href="#get--api-v1-version" class="reference external">GET /api/v1/version</a></td>
<td>API version</td>
</tr>
</tbody>
</table>
API Details
---------------------------------------------------------------------------------------------
<a name="post--api-v1-check-access" class="headerlink" title="Permalink to this definition"></a>
**POST /api/v1/check-access**
A service to check if account and/or related project has the access to
specified queue.
Request JSON Object:
- **login** (*string*) – account id
- **queue** (*string*) – queue id
- **pid** (*string*) – project id, not required if querying
projectless queue
Status Codes:
- <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.2.1" class="reference external">200 OK</a>
– no error
**Example request**:
curl -i -H "Content-Type:application/json" -X POST \
--data '{"pid":"DD-13-5","login":"johnsm","queue":"qfat"}' \
https://scs.it4i.cz/api/v1/check-access
**Example response**:
HTTP/1.1 200 OK
Content-Type: application/json
"OK Access granted for regular queue."
<a name="get--api-v1-dedicated-time-calendar" class="headerlink" title="Permalink to this definition"></a>
**GET /api/v1/dedicated-time-calendar**
A service with public dedicated time calendar.
<a name="get--api-v1-dedicated-time-(cluster_type)" class="headerlink" title="Permalink to this definition"></a>
**GET /api/v1/dedicated-time/**(cluster\_type)
Returns list of times dedicated for HPC maintainance. It is not possible
to use HPC services during maintainance.
Query Parameters:
- **all** – returns all dedicated times for all clusters
- **salomon** – returns all times just for salomon cluster
- **anselm** – returns all times just for anselm cluster
- **active** – returns dedicated times for all clusters which are now
active
- **planned** – returns dedicated times for all clusters which are now
active or scheduled in the future
Status Codes:
- <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.2.1" class="reference external">200 OK</a>
– no error
- <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.6" class="reference external">405 Method Not Allowed</a>
– invalid requested query parameter
**Example request**:
curl -i https://scs.it4i.cz/api/v1/dedicated-time/all
**Example response**:
HTTP/1.1 200 OK
Content-Type: application/json
[
{
"cluster_type": "salomon",
"dateEfficiency": "2017-11-21 09:45:00",
"dateExpiration": "2017-11-21 23:59:00",
"updated_at": "2017-11-21 09:45:00"
}
]
<a name="post--api-v1-fs-usage" class="headerlink" title="Permalink to this definition"></a>
**POST /api/v1/fs-usage**
A service to show filesystem usage.
Request JSON Object:
- **login** (*string*) – account id
- **it4ifreetoken** (*string*) – token
- **cluster** (*string*) – cluster id or ‘all’
Status Codes:
- <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.2.1" class="reference external">200 OK</a>
– no error
- <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.6" class="reference external">405 Method Not Allowed</a>
– invalid requested query parameter
**Example request**:
curl -i -H "Content-Type:application/json" -X POST \
--data '{"login":"johnsm", "it4ifreetoken": "abc","cluster":"all"}' \
https://scs.it4i.cz/api/v1/fs-usage
**Example response**:
HTTP/1.1 200 OK
Content-Type: application/json
[
{
"cluster": "anselm",
"fs": "/home",
"hard_quota_files": 500000,
"hard_quota_space": 250000000,
"ldapuser": "johnsm",
"updated_at": "2019-03-11 13:25:16",
"usage_files": 19,
"usage_space": 2620
}
]
<a name="post--api-v1-it4ifree-(login)" class="headerlink" title="Permalink to this definition"></a>
**POST /api/v1/it4ifree/**(login)
A service to check resources of the projects on which the account
participate. If the calculation run on 1 cpu core during 1 hour, it
consumes 1 core-hour from the project resources. However, some
calculations (or their placement) can be cheaper. Actual consumed
core-hours are reduced by a cheaping factor and then deduct from the
project resources. See
<a href="https://docs.it4i.cz/general/resources-allocation-policy/#normalized-core-hours-nch" class="reference external">link</a>
for more details about so-called normalized core-hours. The json
response contains two parts:
- `me` – data from projects, where the account has access
- `me_as_pi` – data from projects, where the account is PI (primary
investigator)
Request JSON Object:
- **login** (*string*) – account id
- **it4ifreetoken** (*string*) – token
Response JSON Object:
- **login** (*string*) – account id
- **pid** (*string*) – project id
- **pi\_login** (*string*) – account id which is PI
- **days\_left** (*string*) – days to the end of project, `---` if
project is inactive or not yet started
- **free** (*int*) – free core-hours which can be still consumed
- **total** (*int*) – total core-hours assigned to the project
- **used** (*int*) – actual consumed core-hours
- **used\_with\_factor** (*int*) – consumed normalized core-hours
- **used\_by\_me** (*int*) – core-hours consumed by the account
- **used\_by\_me\_with\_factor** (*int*) – normalized core-hours
consumed by the account
- **corehours** (*int*) – core-hours consumed by the account
- **core\_hours\_with\_factor** (*int*) – normalized core-hours
consumed by the account
Status Codes:
- <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.2.1" class="reference external">200 OK</a>
– no error
- <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.6" class="reference external">405 Method Not Allowed</a>
– token does not match
**Example request**:
curl -i -H "Content-Type:application/json" -X POST \
--data '{"login":"johnsm", "it4ifreetoken": "abc"}' \
https://scs.it4i.cz/api/v1/it4ifree/johnsm
**Example response**:
HTTP/1.1 200 OK
Content-Type: application/json
{
"me": [
{
"days_left": "---",
"free": 17124,
"login": "johnsm",
"pid": "DD-13-6",
"total": 100000,
"used": 82876,
"used_by_me": 0,
"used_by_me_with_factor": 0,
"used_with_factor":82876
},
{
"days_left": "---",
"free": 0,
"login": "johnsm",
"pid": "DD-14-12",
"total": 1000,
"used": 8641,
"used_by_me": 0,
"used_by_me_with_factor": 0,
"used_with_factor": 8641
}
],
"me_as_pi": [
{
"core_hours": 82876,
"core_hours_with_factor": 82876,
"login":"abc",
"pi_login": "johnsm",
"pid": "DD-13-6"
},
{
"core_hours": 0,
"core_hours_with_factor": 0,
"login": "johnsm",
"pi_login": "johnsm",
"pid":"DD-13-6"
}
]
}
<a name="get--api-v1-motd-(category)" class="headerlink" title="Permalink to this definition"></a>
**GET /api/v1/motd/**(category)
Returns SCS messages of the day.
Query Parameters:
- **notice** – returns only notice messages
- **important** – returns only important messages
- **all** – returns all messages
Status Codes:
- <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.2.1" class="reference external">200 OK</a>
– no error
- <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.6" class="reference external">405 Method Not Allowed</a>
– invalid requested query parameter
**Example request**:
curl -i https://scs.it4i.cz/api/v1/motd/notice
**Example response**:
HTTP/1.1 200 OK
Content-Type: application/json
[
{
"author": "svi47",
"category": "notice",
"created_at": "2017-10-12 11:44:51",
"dateEfficiency": "2017-10-12 11:41:00",
"dateExpiration": "2017-11-28 14:30:00",
"dateModification": "2017-10-12 13:44:51",
"deleted_at": null,
"id": 169,
"messageBody": "For more information about the course,
please visit its web page: https://goo.gl/cvFsFH",
"state": null,
"title": "Invitation to the Course Productivity Tools
for High Performance Computing (2017-11-27 to 2017-11-28)",
"typeMotd": null,
"updated_at": "2017-10-12 11:44:51"
}
]
<a name="get--api-v1-ping" class="headerlink" title="Permalink to this definition"></a>
**GET /api/v1/ping**
A service for testing connection to API.
Response JSON Object:
- **message** (*string*) – reply message ‘pong’
Status Codes:
- <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.2.1" class="reference external">200 OK</a>
– no error
**Example request**:
curl -i https://scs.it4i.cz/api/v1/ping
**Example response**:
HTTP/1.1 200 OK
Content-Type: application/json
{
"message": "pong"
}
<a name="get--api-v1-version" class="headerlink" title="Permalink to this definition"></a>
**GET /api/v1/version**
Returns basic information about API.
Response JSON Object:
- **hostname** (*string*) – system hostname
- **revision** (*string*) – api revision / build time
- **version** (*string*) – api version
Status Codes:
- <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.2.1" class="reference external">200 OK</a>
– no error
**Example request**:
curl -i https://scs.it4i.cz/api/v1/version
**Example response**:
HTTP/1.1 200 OK
Content-Type: application/json
{
"hostname": "scs.it4i.cz",
"revision": "ceac8aa / 2017-11-01 12:25:27 +0100",
"version": "0.8.2-34-gceac8aa"
}
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