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/3520/?format=api

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

{
    "ob_id": 3520,
    "uuid": "4bdf63d37669853f7783aa993335a45c",
    "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR): sky imagery from the AXIS 2100 Cloud Camera mounted at the Chilbolton Obseratory",
    "abstract": "Data are of sky images collected by an AXIS 2100 digital camera over Chilbolton, Hampshire. The data collected are from 21st of January 2005 to the present and are available in avi movie files and tar files of jpeg images. Images are taken every 15 seconds.",
    "keywords": "CFARR, cloud camera",
    "publicationState": "published",
    "dataPublishedTime": "2003-09-19T14:18:37",
    "doiPublishedTime": null,
    "updateFrequency": "asNeeded",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/3521/?format=api",
        "dataPath": "/badc/chilbolton/data/camera-axis2100",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 590214662771,
        "numberOfFiles": 7000,
        "fileFormat": "Images are jpeg formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/987/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/59/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21919/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22450/?format=api"
    ],
    "dataLineage": "Images are automatically collected by the AXIS 2000 camera at the Chilbolton Observatory, Hampshire. The images are then processed movie files by Chilbolton Facility for Atmospheric and Radio Research (CFARR) staff prior to submission to CEDA for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2381/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/3464/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/3461/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/4611/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14954/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42020/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14957/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76288/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14953/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42023/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14955/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14956/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42021/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14959/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42022/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/3523/?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"
        }
    ]
}