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/32623/?format=api

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

{
    "ob_id": 32623,
    "uuid": "f6c384ae730744d2ba929e0fad77160a",
    "title": "Spectroscopic data for transitions in water (1H 16O2) extending into the near-ultraviolet",
    "abstract": "This dataset contains spectroscopic data for transitions in water (1H 16O2 (H2O with oxygen 16 and hydrogen 1)) extending into the near-ultraviolet. These data were calculated using a mixture of first principle quantum mechanics and input from the experiment. \r\n\r\nThe data is provided in HITRAN format as described in the associated readme file. The data were collected as part of the NERC grant Short wavelength absorption by water vapour (NE/T000767/1).",
    "keywords": "NERC, NE/T000767/1, Spectroscopic, UV",
    "publicationState": "published",
    "dataPublishedTime": "2021-06-15T13:27:58",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/32621/?format=api",
        "dataPath": "/badc/deposited2021/WAT-UV296_water_line/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 121029527,
        "numberOfFiles": 3,
        "fileFormat": "Data are Hirtan formatted."
    },
    "timePeriod": null,
    "geographicExtent": null,
    "nonGeographicFlag": true,
    "phenomena": [],
    "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/32622/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/145445/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/145446/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/145447/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/145448/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/145449/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/145450/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/145451/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/145452/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/145453/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/168961/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/145454/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/32673/?format=api",
    "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"
        }
    ]
}