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/6695/?format=api

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

{
    "ob_id": 6695,
    "uuid": "75206dfaa68b1312641e8391ac07ed53",
    "title": "RAPID: Self-calibrating Palmer Drought Severity Index (scPDSI) data from Europe and America",
    "abstract": "\"The Quantitative applications of high-resolution late Holocene proxy data sets: estimating climate sensitivity and thermohaline circulation influences\" project, part of the Natural Environment Research Council (NERC) RAPID Climate Change Research Programme, was led by Prof Keith Briffa of the University of East Anglia and co-investigators at the University of East Anglia (Round 1 - NER/T/S/2002/00440 - Duration 1 Jul 2003 - 30 Jun 2008).\r\n\r\nThis dataset contains self-calibrating Palmer Drought Severity Index data.",
    "keywords": "RAPID, Climate change,  Drought",
    "publicationState": "published",
    "dataPublishedTime": "2014-09-21T14:54:30",
    "doiPublishedTime": null,
    "updateFrequency": "asNeeded",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/6696/?format=api",
        "dataPath": "/badc/rapid/data/Briffa_Rapid1_Round1",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 25205260,
        "numberOfFiles": 5,
        "fileFormat": "Data are ASCII formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/5002/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1589/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Data provided by Tim Osborn at UEA.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4395/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/19090/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/6694/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28791/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28789/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28790/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28788/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28792/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28793/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28795/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28794/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72444/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/19091/?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"
        }
    ]
}