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/20150/?format=api

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

{
    "ob_id": 20150,
    "uuid": "dc36731ace3046b284dafd809eecf7b9",
    "title": "UKCIP02: 5km gridded data for UK climate projection scenarios (2002)",
    "abstract": "5km gridded resolution data for four climate projection scenarios, produced in support of the UK Climate Impacts Programme 2002 (UKCIP02) by the Met Office Hadley Centre. \r\n\r\nThere are data for monthly and seasonal average anomalies with respect to simulated 1961~90 average for four alternative future climates for the UK. The four emissions scenarios are Low (LO), Medium-Low (ML), Medium-High (MH) and High (HI).\r\n\r\nMonthly data for cloud, precipitation (prec), temperature (temp), maximum temperature (tmax), minimum temperature (tmin) and wind are available using the following convention in the filename:\r\n2020s = predictions for 2011 to 2040,\r\n2050s = predictions for 2041 to 2070,\r\n2080s = predictions for 2071 to 2100.",
    "keywords": "UKCIP, UKCIP02, Climate, Projections, UKCP",
    "publicationState": "published",
    "dataPublishedTime": "2017-02-20T12:46:09",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/20154/?format=api",
        "dataPath": "/badc/ukcip02/data/5km_resolution/gridded",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 365426164,
        "numberOfFiles": 865,
        "fileFormat": "The data are provided as text files. "
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3269/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/509/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Data were produced by the Met Office Hadley Centre, analysed by the Tyndall Centre and passed to the NCAS British Atmospheric Data Centre (NCAS BADC) for archival.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/11714/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/11710/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78346/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78347/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78342/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78343/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78344/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78370/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78339/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78340/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78345/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78348/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78371/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/148607/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/11713/?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"
        }
    ]
}