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/2331/?format=api

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

{
    "ob_id": 2331,
    "uuid": "70cc116299d8a99a26996c545cf124d6",
    "title": "UTLS-Ozone DCFZ campaign: Met Office Hercules C-130 aircraft measurements",
    "abstract": "DCFZ investigated the role of frontal shear zones in determining upper tropospheric chemical distributions. This dataset contains aircraft measurements of CO, O3, NOx, CCN, MAXOX, thermodynamics, physical liquid water content, pressure, wind and temperature.",
    "keywords": "UTLS, DCFZ, Chemistry, temperature, pressure, wind",
    "publicationState": "published",
    "dataPublishedTime": "2007-03-13T14:30:53",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2332/?format=api",
        "dataPath": "/badc/utls/data/dcfz/c-130",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 38648635,
        "numberOfFiles": 48,
        "fileFormat": "Data are NASA Ames formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/627/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/37/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51678/?format=api"
    ],
    "dataLineage": "Data was acquired by the UK Met Office (UKMO) C-130 aircraft during 40 hours flying time, in the spring/summer period of the 2000. Detailed meteorological and chemical forecast data were obtained from the European Centre for Medium-Range Weather Forecasts (ECMWF), UKMO and the Norwegian Institute for Air Research (NILU). Data was then passed on to the BADC where is it stored.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1637/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1640/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1643/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1646/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1649/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1652/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1628/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1626/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1634/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1631/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1623/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1620/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1661/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1655/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1658/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1659/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1662/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1665/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1668/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1660/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/14434/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/6573/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11242/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11243/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11244/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11245/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11247/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/55047/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11240/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11241/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11246/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56182/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56183/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56184/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56185/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/2334/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2526/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}