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/27035/?format=api

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

{
    "ob_id": 27035,
    "uuid": "1d29816cee7e4fb586b80a3f7debcb8e",
    "title": "Meteorological Observations taken from Ben Nevis and Fort William (1883 -1904)",
    "abstract": "This dataset contains meteorological observations taken from Ben Nevis and Fort William (1883 -1904). These records were produced as part of the Operation Weather Rescue project. \r\n\r\nBetween 1883 and 1904, detailed meteorological observations were taken at the summit of Ben Nevis (56.80N, 5.00W, 1345m elevation) and in the town of Fort William (56.81N, 5.12W, 13m elevation). Hourly observations include temperature (both wet and dry bulb), rainfall, atmospheric pressure at both locations. Daily observations include minimum and maximum temperatures and rainfall. Additional observations taken at Fort William School during the same period are also included. Units are Celsius for temperature, mm for rainfall and mb for pressure.\r\n\r\nV2 is the latest version.",
    "keywords": "Weather, Meteorology, Ben Nevis, Fort William, Rainfall, Temperature, Pressure",
    "publicationState": "published",
    "dataPublishedTime": "2019-02-05T09:42:00",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/27036/?format=api",
        "dataPath": "/badc/deposited2019/operation-weather-rescue/data/ben-nevis-data",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 27302521,
        "numberOfFiles": 11,
        "fileFormat": "Data are CSV formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/7279/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2339/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Data were digitised as part of the Operation Weather Rescue project and sent to the Centre for Environmental Data Analysis (CEDA) for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/27037/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/28048/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/113315/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/113317/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/113318/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/113319/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/113320/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/113322/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/113321/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/113316/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/113323/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/113324/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/27038/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2526/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}