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/32482/?format=api

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

{
    "ob_id": 32482,
    "uuid": "59e9e7ae4f9040d38d9f203a4aae96e2",
    "title": "BAS-MASIN flight 294 airborne meteorological observations from the Iceland Greenland Seas Project (IGP)",
    "abstract": "In-situ airborne observations collected during flight 294 on 01 March 2018 by the Meteorological Airborne Science Instrumentation (MASIN) on board the British Antarctic Survey (BAS) Twin-otter aircraft for the Iceland Greenland seas Project (IGP) including the Atmospheric Forcing of the Iceland Sea (AFIS) project.\r\nThis dataset is a quality-controlled revision of the core meteorological data, generated at the University of East Anglia (UEA).\r\nData were collected over the Iceland and Greenland Sea area.",
    "keywords": "IGP, AFIS, aircraft, meteorology, BAS, MASIN, twin-otter",
    "publicationState": "published",
    "dataPublishedTime": "2021-05-07T11:00:56",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/32483/?format=api",
        "dataPath": "/badc/igp/data/twinotter/flight294_20180301",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 83633130,
        "numberOfFiles": 3,
        "fileFormat": "MASIN data are in NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8921/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2755/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61212/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61213/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61214/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61215/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61216/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61217/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61218/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61219/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61220/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61222/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61223/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61224/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61225/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61226/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61227/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61228/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61229/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61230/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61231/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61232/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61233/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74368/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74369/?format=api"
    ],
    "dataLineage": "Data were collected and processed by British Antarctic Survey (BAS) and a quality-controlled revision of the data was generated at UEA.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/24899/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/27445/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/7571/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144585/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144586/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144587/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144588/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144589/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144590/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144591/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144592/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144593/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144594/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144797/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/144798/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/32484/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2543/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/missing_licence.pdf",
            "licenceClassifications": "unstated"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}