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/36838/?format=api

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

{
    "ob_id": 36838,
    "uuid": "1782a24b8eb7444ea72b7058c56bef0f",
    "title": "Radar data from Chilbolton Triple Wavelength Experiment",
    "abstract": "Radar data collected in ice-phase clouds at the Chilbolton Observatory using radars at 3, 35 and 94 GHz during 2014-2015. The experimental setup is described in Stein et al (2015) DOI: 10.1002/2014GL062170 - see related documents section on this record. Raw pulse-to-pulse data were collected from all 3 radars, and have been post processed to common, synchronised time bins, for maximum ease of colocation.\r\n\r\nThese data were produced as part of the NERC funded Exploiting multi-wavelength radar Doppler spectra to characterise the microphysics of ice hydrometeors project (grant reference: NE/K012444/1).",
    "keywords": "ice-phase, radar",
    "publicationState": "citable",
    "dataPublishedTime": "2022-03-18T11:34:12",
    "doiPublishedTime": "2022-04-07T12:58:35.644748",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/36839/?format=api",
        "dataPath": "/badc/deposited2022/radar_data_triple_wavelength/data/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 35377972,
        "numberOfFiles": 8,
        "fileFormat": "Data are NetCDF formatted with version 1.6 CF-standard metadata."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/10185/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/3375/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/47273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/47274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/47275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/47276/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/47277/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/47278/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/47279/?format=api"
    ],
    "dataLineage": "Data prepared by project PI and supplied to the data centre for long term archiving",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12080/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/36840/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/176358/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/176359/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/176360/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/176361/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/176362/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/176363/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/176368/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/176369/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/36841/?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"
        }
    ]
}