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/5380/?format=api

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

{
    "ob_id": 5380,
    "uuid": "f7deb7150ca85b63c3c7e6b1d143579e",
    "title": "Airborne Arctic Stratospheric Expedition II (AASE II) Project Model Data",
    "abstract": "The Airborne Arctic Stratospheric Expedition II (AASE II) which was based in Bangor, Maine between October 1991 and March 1992, with ER-2 flights from Ames Research Center, Fairbanks (Alaska), and Bangor; and DC-8 flights from Ames, Bangor, Anchorage (Alaska), Stavanger (Norway), and Tahiti, was a follow-up to an earlier AASE campaign in 1989. This dataset consists  of MODEL data containing 12 Z hemispheric analyses of potential vorticity, temperature, horizontal winds, and radiative heating rates; and one file named MA911006.H00 which contains gas-phase chemistry model reconstructions of several radicals as a function of latitude, altitude, and local time.",
    "keywords": "ATMOSPHERICWINDS ATMOSPHERE ATMOSPHERICTEMPERATURE ALTITUDE ATMOSPHERICCHEMISTRY",
    "publicationState": "published",
    "dataPublishedTime": "2007-01-26T01:24:47",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/5381/?format=api",
        "dataPath": "/badc/CDs/aase9192/data/model",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 75504429,
        "numberOfFiles": 223,
        "fileFormat": "Data are NASA Ames formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1548/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/745/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6868/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21771/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21817/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21823/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21824/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22321/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22390/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22426/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22445/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22589/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22590/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25382/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25383/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25391/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25394/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25396/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25400/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25857/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25859/?format=api"
    ],
    "dataLineage": "Data collected onboard the NASA ER-2 and DC-8 aircraft based in Bangor, Maine between October 1991 and March 1992.\r\nCopy of CD-ROM published by NASA contains the final data from the Airborne Arctic Stratospheric Expedition II (AASE II).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3512/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/5364/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/5361/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23643/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23637/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23644/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23638/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23640/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23641/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23642/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23639/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/13252/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2528/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://creativecommons.org/licenses/by/4.0/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}