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/12983/?format=api

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

{
    "ob_id": 12983,
    "uuid": "4425b0c4e5b346008cd4b1a09b5b96e3",
    "title": "ESA GlobAlbedo Broadband BRDF (Bi-directional Reflectance Distribution Functions) inversion - Version 1.0",
    "abstract": "As output from the BBDR (Braodband Directional Reflectance) to BRDF processing chain, a BRDF product is generated. This product contains all BRDF model parameters as derived from the Globalbedo inversion algorithm. \r\n\r\nSpectral BRDF, is the fundamental description of surface reflectance, being the ratio of reflected spectral radiance (Wm-2sr-1nm-1) exiting around a direction vector Ω (relative to a surface normal vector) to the spectral irradiance (Wm-2nm-1) incident on the surface from direction Ω at some wavelength λ.",
    "keywords": "ESA, GlobAlbedo, Albedo",
    "publicationState": "preview",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/12982/?format=api",
        "dataPath": "/neodc/globalbedo_broadband_brdf/data/inversion",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 31980935884065,
        "numberOfFiles": 297636,
        "fileFormat": "The data are netCDF formatted, and are compressed in gzip format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8686/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/529/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Data were produced by the GlobAlbedo project participants and are archived by CEDA",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/12987/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/12986/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30128/?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/104804/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50783/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51442/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/104793/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105213/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105023/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/104982/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/104820/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/197613/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51450/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51451/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51452/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51453/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51454/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51455/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51456/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51443/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51444/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51445/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51446/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51447/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51448/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51449/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/40617/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2611/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://www.globalbedo.org/copyright.php",
            "licenceClassifications": ""
        }
    ],
    "discoveryKeywords": []
}