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/14150/?format=api

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

{
    "ob_id": 14150,
    "uuid": "4eb4e801424a47f7b77434291921f889",
    "title": "ESA Ozone Climate Change Initiative (Ozone CCI): Level 3 Nadir Ozone Profile Merged Data Product, version 2",
    "abstract": "This dataset contains Level 3 nadir profile ozone data  from the ESA Ozone Climate Change Initiative (CCI) project.   The Level 3 data are monthly averages on a regular 3D grid derived from level 2 ozone profiles.  In this version 2 of the dataset, data are available for 1997 and 2007 and 2008 only, and use data from the GOME instrument on ERS (1997) and the GOME-2 instrument on METOP-A (2007, 2008).",
    "keywords": "ESA, CCI",
    "publicationState": "published",
    "dataPublishedTime": "2016-03-08T16:54:39",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/14365/?format=api",
        "dataPath": "/neodc/esacci/ozone/data/nadir_profiles/l3/merged/v0002",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 536730525,
        "numberOfFiles": 37,
        "fileFormat": "Data is in NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3801/?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/1050/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13081/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13082/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13083/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13084/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13085/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13086/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13087/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13088/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13089/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13090/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13091/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13092/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13093/?format=api"
    ],
    "dataLineage": "Data were processed by the ESA CCI Ozone project team and supplied to CEDA as part of the ESA CCI Open Data Portal Project",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/14147/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/14148/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30128/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54348/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54350/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54349/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54351/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54528/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/104865/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105078/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105258/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54347/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2531/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_ozone_terms_and_conditions.pdf",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        },
        {
            "ob_id": 1140,
            "name": "ESACCI"
        }
    ]
}