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/41507/?format=api

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

{
    "ob_id": 41507,
    "uuid": "b32f09c9aeba44d1846e6de9423e9895",
    "title": "Ozone Abundance Data from Teledyne T400 Instrument at London Honor Oak Park Air Quality Supersite",
    "abstract": "Mass Fraction of Ozone (O3) in air measured at 5 metres above ground level by a Teledyne T400 Ozone Analyzer Instrument at the London Honor Oak Park Air Quality Site (LHOP) for the Integrated Research Observation System for Clean Air (OSCA) project, 2019 onwards.",
    "keywords": "OSCA,O3,LHOP, LAQS,London",
    "publicationState": "published",
    "dataPublishedTime": "2024-03-05T10:27:20",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/41530/?format=api",
        "dataPath": "/badc/osca/data/london/OSCA_LHOP_Teledyne_T400",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 35389815,
        "numberOfFiles": 49,
        "fileFormat": "NetCDF"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/11573/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/3866/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61969/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74172/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74173/?format=api"
    ],
    "dataLineage": "Data is saved directly from the instrument to the computer, before being transferred to the general database, where it is processed, automatically averaged over minute time intervals and flagged where data is suspect. Once complete, data is uploaded to CEDA for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202371/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202269/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202270/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202271/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202272/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202268/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202275/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/41508/?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": []
}