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/6083/?format=api

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

{
    "ob_id": 6083,
    "uuid": "04af264b514596c57f1e6b0d1e51e9ab",
    "title": "ACSOE OXICOA OZPROF-96: Aberystwyth Ozone Profiles Data from Ozonesonde and Ozone DIAL LIDAR",
    "abstract": "The Atmospheric Chemistry Studies in the Oceanic Environment (ACSOE) OXIdising Capacity of the Ocean Atmosphere (OXICOA) Ozone Profile Experiment 96 (OZPROF-96) Aberystwyth Ozone Profiles Data from Ozonesonde and Ozone DIAL LIDAR contains tropospheric ozone data from balloon-launched ozonesondes and ground-based Ozone DIAL LIDAR in 1996.\r\nOn 12 July 1996, an ozonesonde was launched ahead of a warm front into a clear sky. It encountered a layer about 1 km deep between 11 km and 12 km altitude where ozone concentrations reached values too low to be measured by the sonde (i.e. less than 3 ppbv).",
    "keywords": "ACSOE, OXICOA, OZPROF, Ozone",
    "publicationState": "published",
    "dataPublishedTime": "2007-03-23T19:25:18",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/12693/?format=api",
        "dataPath": "/badc/acsoe/data/ozprof/aberystwyth/96",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 607163,
        "numberOfFiles": 20,
        "fileFormat": "The data files are NASA-Ames formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3412/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/740/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Data collected by instruments on Aberystwyth. Data acquired by BADC for archiving as programme was underway.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3943/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/2913/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/6082/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25821/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25826/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25823/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25824/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25825/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25820/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/48496/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25822/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25827/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/48458/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/48459/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/25884/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/6085/?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"
        }
    ]
}