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/814/?format=api

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

{
    "ob_id": 814,
    "uuid": "0960f9dda95f854ce1d7fbbb813fce51",
    "title": "CWAVE: University of Wales, Aberystwyth ozone DIAL LIDAR at Chilbolton, Hampshire UK.",
    "abstract": "The Cloud and Water Vapour Experiment (CWAVE) was a measurement campaign at the CCLRC-Chilbolton Observatory; it was supporting associated with two EC FP5 projects, CLOUDMAP2 and CLOUDNET. A wide range of satellite and ground based instruments measured a variety of atmospheric properties ranging from cloud parameters to water vapour. In addition, the measurements coincided with the results from a reduced resolution Unified Model (UM) run by the Met Office.",
    "keywords": "CWVC, LIDAR, DIAL",
    "publicationState": "published",
    "dataPublishedTime": "2007-03-09T16:56:03",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/815/?format=api",
        "dataPath": "/badc/cwave/groundbased-other/polarisation_lidar",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 4514533,
        "numberOfFiles": 16,
        "fileFormat": "Data are netCDF formatted\r\n"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/227/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54654/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54655/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54656/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54657/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54658/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54659/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54660/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54661/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54662/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54663/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54664/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54665/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54666/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54667/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54668/?format=api"
    ],
    "dataLineage": "Data are collected by the Chilbolton Observatory and prepared by facility staff before submission to BADC.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/544/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/816/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/813/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2693/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2698/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2691/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2694/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2695/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2696/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2697/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2692/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54233/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54566/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/819/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2570/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "cwave",
            "label": "restricted: cwave group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/cwave.pdf",
            "licenceClassifications": "unstated"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}