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/12301/?format=api

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

{
    "ob_id": 12301,
    "uuid": "90de599e45a84d36a16cf01904048705",
    "title": "NEXTMap British Orthorectified Radar Image (ORI) Data by Intermap",
    "abstract": "This dataset consists of the Orthorectified Radar Image (ORI) from the NEXMap British Digital Terrain Model project produced by Intermap. These data have a 1.25m spatial resolution available over the British Isles.",
    "keywords": "NEXTMap, elevation",
    "publicationState": "published",
    "dataPublishedTime": "2009-09-16T23:00:00",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/12302/?format=api",
        "dataPath": "/neodc/nextmap/by_product/ori",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 181539596969,
        "numberOfFiles": 7742,
        "fileFormat": "Data are GeoTIFF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3020/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/674/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6868/?format=api"
    ],
    "dataLineage": "Data were purchased by the Natural Environmental Research Council from Intermap who produced the data. These data were then delivered to the NEODC for curation and to permit NERC funded researchers to access these data centrally.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/13986/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/10883/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30129/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46981/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46978/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46979/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46980/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46983/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46984/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46985/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46982/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2587/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "nextmap_eula",
            "label": "restricted: nextmap_eula group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/nextmap_eula.pdf",
            "licenceClassifications": "academic, specific"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}