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/27286/?format=api

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

{
    "ob_id": 27286,
    "uuid": "235c7abace54467f84a680e8322a1b40",
    "title": "Southern OceaN optimal Approach To Assess the carbon state, variability and climatic drivers (SONATA): Atmospheric carbon dioxide, oxygen and atmospheric potential oxygen data from the Cap San Lorenzo container ship 2018",
    "abstract": "This dataset contains atmospheric carbon dioxide, oxygen and atmospheric potential oxygen data from the Cap San Lorenzo container ship. A Li-6252 CO2 analyser and Oxzilla II O2 analyser was used for measurement. The UK participation of Southern OceaN optimal Approach To Assess the carbon state, variability and climatic drivers (SONATA) was funded by the Natural Environment Research Council (NERC, grant: NE/P021360/1).",
    "keywords": "SONATA, Carbon dioxide, Oxygen, Ship",
    "publicationState": "published",
    "dataPublishedTime": "2019-02-28T15:58:32",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/27287/?format=api",
        "dataPath": "/badc/sonata/data/cap-san-lorenzo",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 21026370,
        "numberOfFiles": 3,
        "fileFormat": "Data are BADC CSVF formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/7319/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2369/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/58106/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/58107/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/58386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/59273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/59274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/59275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/59276/?format=api"
    ],
    "dataLineage": "Data were collected, quality controlled and prepared for archiving by the instrument scientists before upload to the Centre for Environmental Data Analysis (CEDA) for long term archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/26626/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/27293/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114108/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114109/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114110/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114111/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114112/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114113/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114115/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114114/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/168872/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114116/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/27288/?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": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}