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/20153/?format=api

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

{
    "ob_id": 20153,
    "uuid": "937eac83d9864174aed500b05c8fc012",
    "title": "UKCIP02: 5km temperature time-series data for UK climate projection scenarios (2002)",
    "abstract": "The 5km temperature time-series data for four climate projection scenarios produced in support of the UK Climate Impacts Programme 2002 (UKCIP02).\r\n\r\nMonthly temperature time-series data for four alternative future climates for the UK. The four emissions scenarios are Low (LO), Medium-Low (ML), Medium-High (MH) and High (HI).",
    "keywords": "UKCIP, UKCIP02, Climate, Projections, UKCP",
    "publicationState": "published",
    "dataPublishedTime": "2017-02-20T12:49:19",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/20155/?format=api",
        "dataPath": "/badc/ukcip02/data/5km_resolution/timeseries",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 1827334916,
        "numberOfFiles": 4321,
        "fileFormat": "The data are provided in text format."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3269/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/509/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Data were produced by the Met Office Hadley Centre, analysed by the Tyndall Centre and passed to the NCAS British Atmospheric Data Centre (NCAS BADC) for archival.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/11714/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/11710/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/79131/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78362/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78359/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78360/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78363/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78366/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78373/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78364/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78365/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78368/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78361/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78367/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/148608/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/11713/?format=api",
    "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"
        }
    ]
}