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/1396/?format=api

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

{
    "ob_id": 1396,
    "uuid": "8538100c4c22915bec39f431d68f737a",
    "title": "VIRTEM: C-130 Met Office aircraft in-situ instrumentation and radiosonde measurements",
    "abstract": "Validation data for the IASI (Infrared Atmospheric Sounding Interferometer) satellite instrument. IASI was a moderate resolution (0.25cm^-1) Fourier Transform spectrometer which was scheduled for flight in 2002 on the European METOP satellite. IASI delivered vertical profiles of temperature and humidity data with a resolution of 1km. VIRTEM was an EU project to validate the instrumentation and retrieval methods to be used on IASI.This dataset contains radiosonde, air pressure and air temperature measurements from the C-130 Met Office Hercules aircraft.",
    "keywords": "VIRTEM, Temperature, Pressure, Aircraft",
    "publicationState": "published",
    "dataPublishedTime": "2007-02-21T20:00:40",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/1397/?format=api",
        "dataPath": "/badc/virtem/data/ukmo",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 1035896,
        "numberOfFiles": 25,
        "fileFormat": "Data are NASA Ames formatted\r\n"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/414/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/24/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25404/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/91563/?format=api"
    ],
    "dataLineage": "Data was acquired by IASI (Infrared Atmospheric Sounding Interferometer) satellite instrument on the European METOP satellite. Data is later passed on to the BADC where it is stored in an archive.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1035/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1038/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1036/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1037/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1041/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/1368/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/1365/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4392/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4397/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4391/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4394/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4395/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4396/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4401/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/4393/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/13988/?format=api",
    "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"
        }
    ]
}