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/7454/?format=api

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

{
    "ob_id": 7454,
    "uuid": "0e0a9d1a27e2ff312ff58a8bb9414f6c",
    "title": "Bolton Experiment: Raingauge, Meteorology, Radar and Microwave measurements",
    "abstract": "The Bolton Experiment was an experimental test of the use of microwave attenuation to improve rainfall estimates in urban areas, and hence to enhance flood warning. Data was collected from microwave and radar links and a number of telemetered tipping bucket raingauges. The dataset contains microwave, raingauge and radar data. It also contains data analysis to extract information from the link attenuation data on path-averaged rainfall rate, and comparison with the results with those obtained from the raingauges and the radar. The dataset is now public.",
    "keywords": "Bolton, Raingauge, Meteorology, Radar, Microwave",
    "publicationState": "published",
    "dataPublishedTime": "2007-03-16T16:34:43",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/7455/?format=api",
        "dataPath": "/badc/bolton/data",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 2976351145,
        "numberOfFiles": 4021,
        "fileFormat": "Data are ASCII formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/2158/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/164/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21769/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25869/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25944/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25947/?format=api"
    ],
    "dataLineage": "Data was collected from microwave and radar links and a number of telemetered tipping bucket raingauges, by the University of Essex, the Rutherford Appleton Laboratory (RAL), and the University of Salford. Data are passed on to the BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4838/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4841/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4843/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4848/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4851/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4854/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4856/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4858/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4860/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4862/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4864/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4866/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4886/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4888/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4890/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4892/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4894/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4896/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4897/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4839/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4868/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4870/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4872/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4874/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4876/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4878/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4880/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4882/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4884/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/12049/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/7453/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31211/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31215/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31214/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31220/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31209/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31210/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31212/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31213/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31216/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31217/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31218/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31219/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/7456/?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"
        }
    ]
}