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/32069/?format=api

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

{
    "ob_id": 32069,
    "uuid": "97d8054089a04235ab55a419622b4f1b",
    "title": "ESA Water Vapour Climate Change Initiative (Water_Vapour_cci): Total Column Water Vapour daily gridded data over land at 0.5 degree resolution, version 3.1",
    "abstract": "This dataset consists of daily total column water vapour (TCWV) over land, at a 0.5 degree resolution, observed by various satellite instruments.   It has been produced by the European Space Agency Water Vapour Climate Change Initiative (Water_Vapour_cci), and forms part of their TCVW over land Climate Data Record -1  (TCWV-land (CDR-1).\r\n\r\nThis version of the data is v3.1.",
    "keywords": "water vapour, CCI, TCWV",
    "publicationState": "published",
    "dataPublishedTime": "2021-12-20T16:39:52",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/33289/?format=api",
        "dataPath": "/neodc/esacci/water_vapour/data/TCWV-land/L3/v3.1/0.5deg/daily/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 8426298130,
        "numberOfFiles": 5664,
        "fileFormat": "Data are in NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8798/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/529/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1633/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6814/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6816/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9797/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/43317/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/43318/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/43319/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/43320/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/43321/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/43324/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/43325/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/43326/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/46671/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/46672/?format=api"
    ],
    "dataLineage": "Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/32934/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/32072/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142234/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142235/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142237/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142238/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142239/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142236/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/149452/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/149506/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/149453/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/149454/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/149455/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/149456/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/149457/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/149458/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/33286/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2529/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_watervapour_terms_and_conditions.pdf",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}