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/424/?format=api

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

{
    "ob_id": 424,
    "uuid": "ebd77a706bddd76329fcab7e8e212062",
    "title": "World Climate Research Programme's (WCRP) Coupled Model Intercomparison Project phase 3 (CMIP3) Project Database derived data",
    "abstract": "Data from the Bjerknes Centre for Climate Research, Canadian Centre for Climate Modelling and Analysis, Centre National de Recherches Meteorologiques, Meteorological Institute of the University of Bonn, Geophysical Fluid Dynamics Laboratory, Institute of Numerical Mathematics, Institut Pierre Simon Laplace, LASG, Institute of Atmospheric Physics,  Max Planck Institute for Meteorology, NASA Goddard Institute for Space Studies, National Center for Atmospheric Research and the Met Office Hadley Centre. ",
    "keywords": "CMIP Climate projections",
    "publicationState": "published",
    "dataPublishedTime": "2008-02-29T11:47:23",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "historicalArchive",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/425/?format=api",
        "dataPath": "/badc/cmip3_drs/data/cmip3/derived/gm",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 88841417,
        "numberOfFiles": 393,
        "fileFormat": "Data are netCDF formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/4979/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/529/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/26108/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50415/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50416/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50417/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50559/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50561/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51662/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57654/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57655/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57656/?format=api"
    ],
    "dataLineage": "Data was converted to CF netCDF by the data provider.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/309/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/426/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/423/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1180/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1185/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1179/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1182/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1183/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1184/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1181/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/427/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2626/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "cmip3_ukmo",
            "label": "restricted: cmip3_ukmo group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/missing_licence.pdf",
            "licenceClassifications": "unstated"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}