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/20051/?format=api

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

{
    "ob_id": 20051,
    "uuid": "f55f5649110b4b98b3d5177d8ff2eac9",
    "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR): cloud camera 2 imagery from Chilbolton, Hampshire (2016-present)",
    "abstract": "Sky images collected by a sky camera replacing the earlier JVC KYF55-BE digital camera deployed at the Chilbolton Observatory, Hampshire. These differ from the previous camera imagery by the use of a fish-eye lens to give complete sky imagery. These images have been captured from mid-2016 to the present.",
    "keywords": "CFARR, cloud camera",
    "publicationState": "published",
    "dataPublishedTime": "2016-10-17T12:48:52",
    "doiPublishedTime": null,
    "updateFrequency": "continual",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/20052/?format=api",
        "dataPath": "/badc/chilbolton/data/cloud-camera-2",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 530708496,
        "numberOfFiles": 289,
        "fileFormat": "Image files are Jpeg formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/965/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/59/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21919/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22450/?format=api"
    ],
    "dataLineage": "Data are prepared by Chilbolton Facility for Atmospheric and Radio Research (CFARR) staff prior to submission to CEDA for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/3464/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/3461/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76305/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76304/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76311/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76306/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76308/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76309/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76313/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76312/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76314/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76315/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/20054/?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"
        }
    ]
}