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/13273/?format=api

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

{
    "ob_id": 13273,
    "uuid": "bfab9e070c084686bd207af2bb6179be",
    "title": "ESA Cloud Climate Change Initiative (Cloud CCI): L3S cloud properties from merged MODIS instruments on Aqua and Terra, Version 1.0",
    "abstract": "Cloud properties derived from the merged series of MODIS instruments from NASA's Aqua and Terra satellites by the ESA Cloud CCI project. The L3S dataset consists of data combined (averaged) from into a global space-time grid, with a spatial resolution of 0.5 degrees lat/lon and a temporal resolution of 1 month.\r\n\r\nThis dataset is version 1.0 data from Phase 1 of the CCI project.",
    "keywords": "ESA, CCI",
    "publicationState": "removed",
    "dataPublishedTime": "2016-01-12T15:57:24",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "superseded",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/36849/?format=api",
        "dataPath": "/neodc/esacci/cloud/data/phase-1/L3S/modis_merged/",
        "oldDataPath": [
            "https://api.catalogue.ceda.ac.uk/api/v2/results/13274/?format=api"
        ],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 1071,
        "numberOfFiles": 1,
        "fileFormat": "Data are netCDF formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3600/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/529/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25845/?format=api"
    ],
    "dataLineage": "Data were processed by the ESA CCI Cloud project team and supplied to CEDA in the context of the ESA CCI Open Data Portal Project.",
    "removedDataTime": "2017-06-20T00:00:00",
    "removedDataReason": "These data were removed for the following reason: Data was removed at the request of the data producer. A newer version of the data has been produced.",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/13339/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50894/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50815/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50814/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50813/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/104923/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105140/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105318/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54162/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/10908/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2524/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_cloud_terms_and_conditions.pdf",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}