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/3042/?format=api

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

{
    "ob_id": 3042,
    "uuid": "952daf68b7632e2007e9efd0b298f0ea",
    "title": "COPS: vertical wind profiles from the University of Leeds Sodar no. 1 located at Archern, Germany.",
    "abstract": "The data were collected by a Doppler Sodar, operated by the University of Leeds, at Achern, Germany. The data provided are 15 minute averages of backscatter, horizontal wind and vertical wind.\r\n\r\nThe dataset contains the following measurements:\r\nWind speed\r\nWind direction\r\nEastward wind\r\nBackscatter\r\nUpward air velocity\r\nHeight\r\nNorthward wind.\r\n",
    "keywords": "COPS, wind profile",
    "publicationState": "published",
    "dataPublishedTime": "2007-08-23T10:59:31",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/3043/?format=api",
        "dataPath": "/badc/cops/data/leeds-sodar1",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 7036597,
        "numberOfFiles": 16,
        "fileFormat": "The data are binary or ASCII formatted.\r\n\r\n"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/817/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/53/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52678/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52679/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52680/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52681/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52682/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52683/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52684/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63576/?format=api"
    ],
    "dataLineage": "Data were collected by the Facility for Airborne Atmospheric Measurements (FAAM) aircraft and the deployment of a number of the UK Universities' Facility for Atmospheric Measurement (UFAM) mobile instruments in summer 2007.\r\nData were then prepared by project participants and then submitted to BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2089/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/3036/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/3033/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13685/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13687/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13688/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13689/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13691/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42958/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42961/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13686/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49329/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42959/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42960/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/3045/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2522/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}