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/11021/?format=api

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

{
    "ob_id": 11021,
    "uuid": "504312b7a9f4e905181c8484f8a3c405",
    "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Direct Visible Radiometer Data",
    "abstract": "Data were collected by the Chilbolton Facility for Atmospheric and Radio Research (CFARR) Direct Visible Radiometer from 27th Februrary 2013 to the present at Chilbolton, Hampshire. The dataset contains measurements of high accuracy direct solar radiation measurement research on a plane/level surface.",
    "keywords": "radiometer, direct, visible, irradiance, CFARR",
    "publicationState": "published",
    "dataPublishedTime": "2003-10-01T18:37:20",
    "doiPublishedTime": null,
    "updateFrequency": "monthly",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/11022/?format=api",
        "dataPath": "/badc/chilbolton/data/radiometer-visible-direct",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 226592506,
        "numberOfFiles": 2120,
        "fileFormat": "Data are netCDF formatted. Images are PNG formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3062/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/59/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50512/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54762/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54763/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54764/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60771/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60772/?format=api"
    ],
    "dataLineage": "Data are acquired by the Chilbolton Facility directly from the instrument before manual checking and release for archiving with the Centre for Environmental Data Analysis on a monthly basis.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/7368/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/3464/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/3461/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/7378/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/32603/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39786/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39785/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39787/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39788/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50819/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42055/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42058/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39789/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/103969/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42056/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42057/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50820/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/11024/?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"
        }
    ]
}