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/1424/?format=api

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

{
    "ob_id": 1424,
    "uuid": "52099eaf0874a317c980d0258c320df3",
    "title": "ISB52: Doppler Lidar measurements from RAF Northolt and Malvern, UK",
    "abstract": "This dataset contains Doppler lidar measurements from the ISB52 Improved Air Quality Forecasting project. The aim of the project was to develop a better understanding of air flow within the atmospheric boundary layer by gathering 3-dimensional air flow information using two identical Doppler lidars supplied by Qinetic and the University of Salford. The project compared parameters derived from the dual Doppler lidar measurements with inputs used in the UK Met Office air quality forecasting model. Field experiments were undertaken in March 2003 at Malvern and in July 2003 at RAF Northolt, West London, UK.",
    "keywords": "ISB52, lidar, atmosphere, boundary layer, air flow",
    "publicationState": "published",
    "dataPublishedTime": "2007-03-16T23:56:02",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/1425/?format=api",
        "dataPath": "/badc/isb52/data",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 44429602,
        "numberOfFiles": 336,
        "fileFormat": "Data are netCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/422/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/919/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55190/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55191/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55193/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55194/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55195/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55196/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55197/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55198/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55199/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55201/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55202/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55203/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55204/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79189/?format=api"
    ],
    "dataLineage": "Data from two identical Doppler lidars, one of which was the UFAM (Universities Facility for Atmospheric Measurement) Doppler lidar, obtained in March 2003 at Malvern and in July 2003 at RAF Northolt, West London, UK, passed on to the BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1054/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8826/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/1426/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/1423/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4503/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4502/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4505/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4506/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4507/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4518/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4517/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4504/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4511/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4508/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4509/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4514/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4510/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4516/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4512/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4513/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4515/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/1429/?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"
        }
    ]
}