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/25852/?format=api

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

{
    "ob_id": 25852,
    "uuid": "3c62cd14b63d468582e8fc00ee446595",
    "title": "GloCAEM: Atmospheric electricity measurements at Halley Station, Brunt Ice Shelf, Antarctica",
    "abstract": "Global Coordination of Atmospheric Electricity Measurements (GloCAEM) project brought these experts together to make the first steps towards an effective global network for FW atmospheric electricity monitoring by holding workshops to discuss measurement practises and instrumentation, as well as establish recording and archiving procedures to archive electric field data in a standardised, easily accessible format, then by creating a central data repository. This project was funded in the UK under NERC grant NE/N013689/1.\r\n\r\nThis dataset contains measurements of atmospheric electricity and electric potential gradient made using a JCI Chilworth 131 at Halley Station, Brunt Ice Shelf, Antarctica.",
    "keywords": "GloCAEM, GEC, electric potential, electric field",
    "publicationState": "published",
    "dataPublishedTime": "2020-07-09T14:24:55",
    "doiPublishedTime": null,
    "updateFrequency": "unknown",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/25853/?format=api",
        "dataPath": "/badc/glocaem/data/halley",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 79754359,
        "numberOfFiles": 689,
        "fileFormat": "Data are CSV formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8634/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2185/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64183/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64184/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64187/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64188/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64197/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64201/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80447/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80448/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80449/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80450/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80451/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80452/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80453/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80454/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80455/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80456/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80457/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80458/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80459/?format=api"
    ],
    "dataLineage": "Data collected by project team and sent to CEDA",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/20068/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/24981/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107987/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107988/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107989/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107990/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107992/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107993/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107994/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107995/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107991/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/25854/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2546/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "http://creativecommons.org/licenses/by/4.0/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}