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/5436/?format=api

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

{
    "ob_id": 5436,
    "uuid": "56bc5aa7867e3702fec1b3f7f35d812b",
    "title": "QUEST PalaeoQUMP: Charcoal Database",
    "abstract": "PalaeoQUMP was headed by Prof Sandy Harrison of the University of Bristol, with co-investigators at the University of Southampton and Durham University, as part of QUEST (Quantifying and Understanding the Earth System).\r\n\r\nThis dataset collection contains data from charcoal records that have been compiled for the Mediterranean, Black Sea-Caspian and Sea corridor region.",
    "keywords": "QUEST, PalaeoQUMP, sediments, climate, glacial. IPCC",
    "publicationState": "published",
    "dataPublishedTime": "2014-09-21T21:20:06",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/5437/?format=api",
        "dataPath": "/badc/quest/data/palaeoqump",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 29942052,
        "numberOfFiles": 4,
        "fileFormat": "Data are stored in a Microsoft Access database file"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/5015/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Charcoal data provided in 2008 by Mitch Power at Edinburgh University.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3540/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/11999/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/5435/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23798/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23796/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23799/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23800/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23801/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23802/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72511/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23797/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72509/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72510/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72512/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2543/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/missing_licence.pdf",
            "licenceClassifications": "unstated"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}