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/38201/?format=api

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

{
    "ob_id": 38201,
    "uuid": "eefc250e1dfb4142aa04e323aa449846",
    "title": "FAAM C313 DCMEX flight: Airborne atmospheric measurements from instruments on board the BAE-146 aircraft",
    "abstract": "Airborne atmospheric measurements from instruments on board the FAAM BAE-146 aircraft collected for the Deep Convective Microphysics Experiment (DCMEX) project. Flight C313 took place on 6th August 2022 over New Mexico, USA.",
    "keywords": "DCMEX, FAAM, airborne, atmospheric measurments",
    "publicationState": "published",
    "dataPublishedTime": "2022-09-20T14:34:53",
    "doiPublishedTime": null,
    "updateFrequency": "asNeeded",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/38200/?format=api",
        "dataPath": "/badc/faam/data/2022/c313-aug-06",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 7562363045,
        "numberOfFiles": 58,
        "fileFormat": "Data are netCDF and NASA-Ames formatted. Ancillary files may be plain ASCII or PDF formatted. Image files may be PNG formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/10527/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/3641/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/49302/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51124/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51129/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60174/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60175/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60176/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60177/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60178/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60179/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60180/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60181/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60182/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60183/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60184/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60187/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60188/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60189/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60190/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60191/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60194/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60195/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60196/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60197/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60198/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60199/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60201/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60308/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60309/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62679/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62680/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62681/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62682/?format=api"
    ],
    "dataLineage": "Data were collected by instrument scientists during the flight before preparation and delivery for archiving at the Centre for Environmental Data Analysis (CEDA).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/38131/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/5782/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/38137/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/181937/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/181938/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/181939/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/181940/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/181941/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/181942/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/181943/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/181944/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/181945/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/38202/?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": []
}