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/6028/?format=api

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

{
    "ob_id": 6028,
    "uuid": "460eca4f010bbebf25c8027bf1c8b4ef",
    "title": "Network for the Detection of Atmospheric Composition Change (NDACC): Numerical Model Output from stations",
    "abstract": "The Network for the Detection of Atmospheric Composition Change (NDACC), formely known as the Network for the Detection of Stratospheric Change (NDSC), is a set of high quality, remote-sounding research stations for observing and understanding the physical and chemical state of the stratosphere. These stations, where ozone and key ozone-related parameters are measured, are complemented by both secondary stations and satellite measurements. Following five years of planning, instrument design and implementation, the NDACC began network operations in January 1991. The dataset contains high quality measurements of a wide range of stratospheric chemical species and parameters derived from instruments operated at a number of ground stations around the world.",
    "keywords": "ATMOSPHERICTEMPERATURE ATMOSPHERE ATMOSPHERICWATERVAPOR AEROSOLS ATMOSPHERICCHEMISTRY",
    "publicationState": "published",
    "dataPublishedTime": "2007-03-08T23:06:02",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "superseded",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/6029/?format=api",
        "dataPath": "/badc/ndsc/data/ncep",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 731828289,
        "numberOfFiles": 21437,
        "fileFormat": "Data are NMC formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1762/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21758/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21771/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21787/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21817/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21823/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22413/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22426/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22437/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22442/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22445/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22890/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23106/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25383/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25391/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25394/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25397/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25398/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25399/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25400/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25854/?format=api"
    ],
    "dataLineage": "Data obtained by five primary stations in the Arctic, Antarctica, Hawaii, New Zealand and Alpine Europe, from January 1991.\r\nCopy of public data from NDACC (Network for the Detection of Atmospheric Composition Change) ftp site.\r\nData stopped updating when it moved to Data Handling Facility at LaRC.  The CEDA Archive decided to discontinue updates to this dataset.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3910/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/5920/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/5917/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25573/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25574/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25570/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25575/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25578/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25571/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25569/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25572/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54986/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25576/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25577/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/13555/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2521/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/missing_licence.pdf",
            "licenceClassifications": "unstated"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}