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/30512/?format=api

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

{
    "ob_id": 30512,
    "uuid": "4ecb0d6ce0ca4032b79dc80e52d374eb",
    "title": "ICECAPS-ACE: surface snow surface brightness temperature taken at Summit Station Greenland",
    "abstract": "This dataset contains surface snow surface brightness temperature measured on the roof of the Summit Station Greenland detected by an infrared radiation thermometer (KT15 Infrared Temperature Sensor). Data are 1 minute averages concatenated into monthly files.\r\n\r\nThese data were collected as part of the joint Natural Environmental Research Council (NERC) and US National Science Foundation (NSF) -funded Integrated Characterisation of Energy, Clouds, Atmospheric state, and Precipitation at Summit - Aerosol Cloud Experiment (ICECAPS-ACE) project.\r\n\r\nThese data were continued through the 3 year extension to the ICECAPS-ACE project called ICECAPS-MELT.",
    "keywords": "ICECAPS-ACE, Aerosol, Cloud, Snow, Temperature, Brightness",
    "publicationState": "published",
    "dataPublishedTime": "2020-07-03T10:57:38",
    "doiPublishedTime": null,
    "updateFrequency": "asNeeded",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/30513/?format=api",
        "dataPath": "/badc/icecaps-ace/data/skin-temperature/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 162600279,
        "numberOfFiles": 80,
        "fileFormat": "Data are netCDF formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8310/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2625/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1633/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22987/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23015/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23016/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23020/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23024/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23037/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23038/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/28887/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/28888/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/28890/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/28891/?format=api"
    ],
    "dataLineage": "Data were collected by the ICECAPS project team and deposited at the Centre for Environmental Data Analysis (CEDA) for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/30502/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/38309/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30507/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132003/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132004/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132005/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132006/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132007/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132008/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132011/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132009/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/168923/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132837/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132838/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/30515/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2522/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}