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/12309/?format=api

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

{
    "ob_id": 12309,
    "uuid": "884e63e1c8e8476d8174825741e60f6a",
    "title": "Intermap NEXTMap British Data by OS Grid Tile",
    "abstract": "This dataset links together all NEXTMap products by OS Grid tile - e.g. the sn60 directory brings together links various products from the OS Grid covering the Bristol Channel. These data products are on various resolutions and include the following products:\r\n\r\nDifference model (dsm - dtm) Data\r\nDigital Surface Model (DSM) Data \r\nDigital Terrain 10m resolution (DTM10) Model Data \r\nDigital Terrain 50m resolution (DTM10) Model Data \r\nDigital Terrain (DTM) Model Data  \r\nEnhanced Digital Terrain (DTME) Model Data\r\nOrthorectified Radar Image (ORI)",
    "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/12310/?format=api",
        "dataPath": "/neodc/nextmap/by_tile/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 825,
        "numberOfFiles": 1,
        "fileFormat": "Data are either ArcInfo Binary Grid formatted or GeoTIFF image files"
    },
    "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/47010/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47011/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47012/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47013/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47015/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47016/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47017/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47014/?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"
        }
    ]
}