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/10847/?format=api

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

{
    "ob_id": 10847,
    "uuid": "62eff59ecc759f7c1b2eaf22a8a96b51",
    "title": "Fire Radiative Power from MSG SEVIRI data",
    "abstract": "This dataset contains Fire Radiative Power (FRP) data over Africa from Meteosat Second Generation (MSG) Spinning Enhanced Visible and InfraRed Imager (SEVIRI) data.  Fires are detected by applying Roberts and Wooster's (2008) detection algorithm to SEVIRI data. FRP is estimated using the Middle InfraRed (MIR) radiance method (Wooster et al., 2003). The dataset was produced by Gareth Roberts and Martin Wooster (National Centre for Earth Observation (NCEO), Kings College London).",
    "keywords": "",
    "publicationState": "published",
    "dataPublishedTime": "2010-02-19T16:11:20",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/10848/?format=api",
        "dataPath": "/neodc/seviri_frp/data/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 2883155585,
        "numberOfFiles": 363,
        "fileFormat": "Data are netCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/6987/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/491/?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/1635/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1636/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9709/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9710/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9711/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9712/?format=api"
    ],
    "dataLineage": "Data provided to NEODC by Gareth Thomas, King's College London, 2010",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/7207/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/5001/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/10846/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30127/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39031/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39035/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39029/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39032/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39033/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39034/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39036/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39030/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108229/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/10851/?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"
        }
    ]
}