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/6645/?format=api

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

{
    "ob_id": 6645,
    "uuid": "a21866840b0413da568d0d0225698f77",
    "title": "Met Office Northern Hemisphere Gridded 1000-500hPa Geopotential Height Thickness Daily and Monthly Series",
    "abstract": "This dataset holds Northern Hemisphere (north of 15 deg. N) daily and monthly series of 1000-500hPa Geopotential Height Thickness Daily and Monthly Series. The data is gridded on a 5x10 degree grid. The data is available for the period 1945 to 2005. \r\n\r\nThe geopotential thickness between pressure levels — difference of the 1000 hPa and 500 hPa geopotential heights for example — is proportional to mean virtual temperature in that layer.\r\n\r\nThe data is supplied by the Met Office, Hadley Centre.",
    "keywords": "Met Office, Hadley,geopotential height, thickness",
    "publicationState": "published",
    "dataPublishedTime": "2007-02-03T04:53:11",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/6646/?format=api",
        "dataPath": "/badc/ukmo-height/data/NH_1000-500hPa_thickness",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 120547996,
        "numberOfFiles": 149,
        "fileFormat": "ASCII"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1949/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/156/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25976/?format=api"
    ],
    "dataLineage": "Data were prepared by the Met Office's Hadley Centre for the period 1945 to 2005, before a copy was obtained for archiving at the BADC.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4352/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8750/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/13164/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/6641/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28621/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28617/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28615/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28618/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28619/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28620/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28622/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28616/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/53190/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/55469/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/169578/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/6647/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2638/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "height",
            "label": "restricted: height group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement.pdf",
            "licenceClassifications": "academic"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}