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/6270/?format=api

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

{
    "ob_id": 6270,
    "uuid": "f73a1ed90ca550c350f587d43a5e20aa",
    "title": "Flood Risk for Extreme Events (FREE) The Flood Action Team (FLoAT): Aerial images of Tewkesbury area, 24-31 July 2007",
    "abstract": "The Flood Action Team (FLoAT) project is intended to collate a variety of data collected during the June and July 2007 Flood events in the UK (e.g. Tewkesbury event in 2007). This project is funded by the Natural Environment Research Council (NERC) - project Ref. R8/H12/69 - through the Flood Risk for Extreme Events (FREE) NERC directed mode programme. Aerial images of the Tewkesbury area, which include the river Severn and the river Avon, were collected during the flood events of summer 2007.",
    "keywords": "FREE, FLoAT, Flooding, Images",
    "publicationState": "published",
    "dataPublishedTime": "2010-09-15T21:31:43",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/6271/?format=api",
        "dataPath": "/badc/free/data/R8-H12-69_FLoAT/Tewkesbury/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 278113917174,
        "numberOfFiles": 1404,
        "fileFormat": "Images are JPG formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1825/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/767/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Tewkesbury Aerial images collected during the June and July 2007 were supplied by UML, Cambridge University in 2010, to the BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4074/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/997/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/6269/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26532/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26537/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26534/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26535/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26536/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26538/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26531/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26533/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/6275/?format=api",
    "procedureCompositeProcess": null,
    "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"
        }
    ]
}