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/13747/?format=api

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

{
    "ob_id": 13747,
    "uuid": "f044d036605b451da19b902af963cf9c",
    "title": "Snow-Vegetation-Atmosphere Interactions over Heterogeneous Landscapes: Abisko Weather Observations data",
    "abstract": "Vegetation and meteorological observations (snow and radiation) were collected by various ground instruments in an area of forest near Abisko (Sweden) and Sodankylä (Finland) during measurement campaigns in March 2011 and March 2012. This dataset contains the data produced by a Vaisala WXT520 weather transmitter used to measure temperature, relative humidity, wind speed, wind direction and atmsopheric pressure during the radiometer experiments in each plot in March 2011. This was a NERC funded project.",
    "keywords": "NERC, weather observations, abisko",
    "publicationState": "published",
    "dataPublishedTime": "2015-12-14T20:22:24",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/13748/?format=api",
        "dataPath": "/badc/nerc-rm2010/data/snow-vegetation-atmosphere/abisko/weather",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 531555,
        "numberOfFiles": 6,
        "fileFormat": "BADC CSV"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3683/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/765/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25880/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/56169/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57963/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57964/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57965/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57966/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57967/?format=api"
    ],
    "dataLineage": "Campaign research data.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8682/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/12273/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/7768/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52610/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52609/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52614/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52608/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52615/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52607/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52612/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52613/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52611/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54893/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/14272/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2543/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/missing_licence.pdf",
            "licenceClassifications": "unstated"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}