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/13698/?format=api

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

{
    "ob_id": 13698,
    "uuid": "214146d8d076415996e9891944c62c11",
    "title": "Improved Stratospheric and Mesospheric Sounder (ISAMS) level 3 data",
    "abstract": "The Improved Stratospheric and Mesospheric Sounder (ISAMS) measured vertical profiles of temperature and a number of atmospheric constituents. An instrument on board UARS (Upper Atmosphere Research Satellite) measured global stratospheric and mesospheric temperature, CO, H2O, CH4, O3, HNO3, N2O5, NO2, N2O and aerosol extinction. Gridded, global measurements between 80S and 80N, October 1991 - July 1992. This data is the raw level 3 version 0008, v0009, v0010. The data is as found on the mission ground segment support computer.",
    "keywords": "AEROSOLS ATMOSPHERE ATMOSPHERICWATERVAPOR ATMOSPHERICTEMPERATURE ALTITUDE ATMOSPHERICCHEMISTRY",
    "publicationState": "published",
    "dataPublishedTime": "2007-01-18T10:22:55",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/13699/?format=api",
        "dataPath": "/badc/isamsl3/data",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 1864515236,
        "numberOfFiles": 14367,
        "fileFormat": "Unknown"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/468/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/6/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21758/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21771/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21824/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22411/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22447/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22448/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22449/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25383/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25394/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25396/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25397/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25398/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25399/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25403/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25850/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25890/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25981/?format=api"
    ],
    "dataLineage": "Data copied from mission ground segment support VMS computer system. The data was transferred just before the computer was retired in 2002. \r\n",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/1633/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/1630/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52350/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52349/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52348/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52352/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52353/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52354/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52355/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52351/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/1639/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2526/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}