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/8459/?format=api

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

{
    "ob_id": 8459,
    "uuid": "a00b9dcac27b6633874b6879b5537a83",
    "title": "SHAC2000: E-Synthetic Aperture Radar measurements at DLR Aircraft 2",
    "abstract": "Data from the Synthetic Aperture Radar and Hyperspectral Airborne campaign (SHAC) run by the Natural Environment Research Council (NERC) and the British National Space Centre (BNSC). The campaign intended to provide support for industrial and academic research into earth resource and environmental monitoring. The campaign was managed by NRSC- now Infoterra. Fourteen different locations were flown in May and June 2000 in the campaign (see Fig.1), logistical constraints requiring two aircraft be used to fly the two instruments individually.",
    "keywords": "SHAC2000, aircraft, monitoring, radar",
    "publicationState": "published",
    "dataPublishedTime": "2007-03-19T11:45:33",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/8460/?format=api",
        "dataPath": "/neodc/shac2000/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 95746468209,
        "numberOfFiles": 108,
        "fileFormat": "Data are ENVI formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3763/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/193/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Data prepared by the SHAC2000 team before delivery and archiving at the NEODC",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5407/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5414/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5417/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5420/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5423/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5426/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5429/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5432/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5435/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5438/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5449/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5452/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5441/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5459/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5453/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5446/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5456/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8328/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5447/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5448/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/8461/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/8458/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33618/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33619/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33624/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33622/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33621/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33620/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33617/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33623/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54607/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54608/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54609/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54610/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54611/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54612/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54613/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54614/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54615/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54616/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54617/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54618/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/14191/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2637/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "shac2000",
            "label": "restricted: shac2000 group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/shac2000.pdf",
            "licenceClassifications": "academic"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}