Observation Instance – Django REST framework

Get a list of Observation objects.

### Available end points:

- `/observations/` - Will list all Results in the database
- `/observations.json` - Will return all Results in json format. This can
also be achieved by using the accept header. `application/json`
- `/observations/<object_id>/` - Returns Results object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `title`
- `uuid`
- `keywords`
- `status`
- `result_field`
- `discoveryKeywords`
- `updateFrequency`
- `nonGeographicFlag`
- `publicationState`
- `permissions`

### How to use filters:

These filters can be used like django query filters using __ for related model relationships.

- `/observations/?uuid=d594d53df2612bbd89c2e0e770b5c1a0`
- `/observations/?status=completed`
- `/observations/?results_field__dataPath__startswith=/neodc/esacci`
- `/observations/?discoveryKeywords__name=ESACCI`
- `/observations/?nonGeographicFlag=True`

Filters can be stacked to build an 'AND' relationship. E.g.

- `/observations/?publicationState__in=published,citable&nonGeographicFlag=True`
- `/observations/?publicationState__in=published,citable&discoveryKeyword__name=NDGO0003`

GET /api/v2/observations/6126/?format=api

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 6126,
    "uuid": "cb1e243488e94c2c019352bf24ff2e6c",
    "title": "RAL 78GHz Cloud Radar Data from the NERC Mesosphere-Stratosphere-Troposphere (MST) Radar Facility",
    "abstract": "The Rutherford Appleton Laboratory (RAL) Cloud Radar was deployed at the Natural Environment Research Council's (NERC) Mesosphere-Stratosphere-Troposphere (MST) Radar Facility, Capel Dewi, near Aberystwyth in West Wales from April 2005 to June 2006. These data are restricted to registered users for these data only.\r\n\r\n",
    "keywords": "RAL, cloud radar, MST",
    "publicationState": "published",
    "dataPublishedTime": "2007-03-15T23:52:58",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/6127/?format=api",
        "dataPath": "/badc/mst/data/ral-cloud-radar",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 4021409418,
        "numberOfFiles": 389,
        "fileFormat": null
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1792/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/515/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21920/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21974/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22318/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25845/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25858/?format=api"
    ],
    "dataLineage": "Data are acquired by the MST radar facility and sent to the BADC within an hour of acquisition. Data are then immediately ingested into the BADC archives.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3971/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/12152/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/6117/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26021/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26020/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26023/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26024/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26025/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26027/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26022/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46126/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/6129/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2650/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "mst",
            "label": "restricted: mst group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/mst.pdf",
            "licenceClassifications": "academic"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}