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/26227/?format=api

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

{
    "ob_id": 26227,
    "uuid": "b7953003f065461c9568e3fd9a13460f",
    "title": "ACITES: Monthly ozone observations from European and North American sites and CASTNET data.",
    "abstract": "Monthly surface ozone concentration and ozone dry deposition flux fields from observations in Europe and North America and from CASTNET data saved in NetCDF format.",
    "keywords": "ACITES, Atmospheric Chemistry, Ozone, HTAP",
    "publicationState": "published",
    "dataPublishedTime": "2018-10-16T10:22:14",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/26228/?format=api",
        "dataPath": "/badc/acites/data/measurement_data",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 429206,
        "numberOfFiles": 86,
        "fileFormat": "netCDF"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/7083/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2203/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/24561/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50559/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50561/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57905/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57906/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57907/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57908/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57909/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57910/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/87813/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/87814/?format=api"
    ],
    "dataLineage": "1. > o3_observation directory\r\n   \r\n   > SITE_mon_ave.nc\r\n     Monthly average ozone dry deposition flux, surface\r\n     ozone concentration (where available) and ozone deposition\r\n     velocity.\r\n     \r\n\r\n2. > castnet_data directory\r\n\r\n   > CASTNET_mon_ave_SITE.nc\r\n     Monthly average ozone dry deposition flux, surface ozone\r\n     concentration and ozone deposition velocity for each year that \r\n     observations were available. The ozone dry deposition flux is\r\n     calculated. Note that data was not necessarily available for all\r\n     of the years between 1987-2014.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/12136/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/26222/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/141560/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/141559/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/141561/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109698/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109700/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109702/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/112058/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/112059/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/141558/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109696/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109701/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109699/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/26229/?format=api",
    "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"
        }
    ]
}