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/19022/?format=api

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

{
    "ob_id": 19022,
    "uuid": "8c80eacd17aa48e1aa57a1f9895eb9d2",
    "title": "APPRAISE CLOUDS: UCPC data from the University of Manchester UCPC instrument deployed at the Chilbolton Observatory, Hampshire",
    "abstract": "Data were collected on the 27th of November 2008 and on the 6th of January 2009 by the University of Manchester scanning mobility particle sizer at the Chilbolton site in support of the FAAM Campaign in the South-West of England. The dataset contains measurements of concentrations of aerosols of specific sizes.\r\n\r\nThe data were collected for use in the ICE project, which is one of multiple projects within the APPRAISE (Aerosol Properties, PRocesses And Influences on the Earth's climate) programme.",
    "keywords": "appraise, cloud, particle counter",
    "publicationState": "published",
    "dataPublishedTime": "2007-12-10T10:36:40",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/19024/?format=api",
        "dataPath": "/badc/appraise/data/clouds/man-ucpc/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 114615505,
        "numberOfFiles": 3,
        "fileFormat": "Data are NASA-Ames formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1928/?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/52353/?format=api"
    ],
    "dataLineage": "Data for provided as is by the APPRAISE campaign participants for archiving at the BADC.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/6527/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/12229/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71596/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71597/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71598/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71594/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71595/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71592/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71591/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71593/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71599/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71600/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71601/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/25349/?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"
        }
    ]
}