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/14990/?format=api

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

{
    "ob_id": 14990,
    "uuid": "d167945be8e54d2589f15d7f1f7c58e7",
    "title": "FAAM B049 ADRIEX flight, number 7: Airborne atmospheric measurements from core and non-core instrument suites on board the BAE-146 aircraft",
    "abstract": "Airborne atmospheric measurements from core and non-core instrument suites data on board the FAAM BAE-146 aircraft during flight 7 for Aerosol Direct Radiative Impact Experiment (ADRIEX) project.",
    "keywords": "ADRIEX, FAAM, airborne, atmospheric measurments",
    "publicationState": "published",
    "dataPublishedTime": "2015-03-31T21:02:53.233119",
    "doiPublishedTime": null,
    "updateFrequency": "asNeeded",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/14989/?format=api",
        "dataPath": "/badc/faam/data/2004/b049-sep-05",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 198814323,
        "numberOfFiles": 17,
        "fileFormat": "Data are netCDF and NASA-Ames formatted. Ancillary files may be plain ASCII or PDF formatted. Image files may be PNG formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3925/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/940/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50834/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51679/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51680/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51745/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51746/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51747/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51748/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51749/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51750/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51751/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51752/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51753/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51754/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51755/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51756/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51757/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51758/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52889/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52890/?format=api",
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    ],
    "dataLineage": "Data were collected by instrument scientists during the flight before preparation and delivery for archiving at the NCAS British Atmospheric Data Centre.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
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    ],
    "observationcollection_set": [
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    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/14991/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2522/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}