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/4773/?format=api

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

{
    "ob_id": 4773,
    "uuid": "794eccbedfb6b78471fd077a4e406ac2",
    "title": "Convective Storm Initiation Project (CSIP) Pilot: UK Met Office 2 km Nimrod Rain Radar Data",
    "abstract": "The UK Met Office NIMROD radar data describe rain-rate observations taken by NIMROD, which is a very short range forecasting system used by the Met Office. Data were collected during July 2004 at UK only stations. The dataset contains measurements of rain rate data and images. These data are 2 km resolution supplied specifically for the CSIP campaign.",
    "keywords": "CSIP, Met Office, Rain radar",
    "publicationState": "published",
    "dataPublishedTime": "2006-08-17T14:02:47",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/4774/?format=api",
        "dataPath": "/badc/csip/data/ukmo-nimrod/2004",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 287005629,
        "numberOfFiles": 14895,
        "fileFormat": "Data are Met Office Nimrod formatted. Images are GIF formatted.\r\n\r\n"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3528/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/721/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Data were collected by the Met Office's Nimrod system and these particular data were then delivered to the BADC for ingestion into the CSIP Pilot Field Campaign.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3201/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/11972/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/4611/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21794/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42643/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21793/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21795/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21796/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21797/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21799/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42646/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49741/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/4779/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2532/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "ukmo_wx",
            "label": "restricted: ukmo_wx group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement.pdf",
            "licenceClassifications": "academic"
        },
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2533/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "ukmo_wx_gov",
            "label": "restricted: ukmo_wx_gov group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement_gov.pdf",
            "licenceClassifications": "policy"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}