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/2464/?format=api

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

{
    "ob_id": 2464,
    "uuid": "669c1c7e7cf809d76e7bec9d562b9b9f",
    "title": "EXPORT: Ozone and backscatter measurements from the CNRS UV LIDAR onboard the UPMC-SA Mystere aircraft",
    "abstract": "This dataset contains ozone and backscatter measurements from the CNRS UV LIDAR onboard the UPMC-SA Mystere aircraft flown during the European eXport of Precursors and Ozone by long-Range Transport (EXPORT) project .\r\n\r\nThe primary objective of EXPORT was to characterise and quantify the photochemical air pollution both forming over Europe and being exported eastwards from Europe. The data held at BADC were collected during a co-ordinated 3 aircraft flying campaign in August 2000 based at Oberpfaffenhofen in Southern Germany. Measurements were made of many photochemical parameters including ozone, its precursors, other oxidants and both gas phase and particulate tracers in the air over Europe and that being transported eastwards out of Europe.",
    "keywords": "EXPORT, LIDAR, Meteorology, Ozone, Aircraft",
    "publicationState": "published",
    "dataPublishedTime": "2007-02-21T23:13:41",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2465/?format=api",
        "dataPath": "/badc/export/data/mystere",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 634263,
        "numberOfFiles": 191,
        "fileFormat": "Data are NASA Ames formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/674/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/40/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21758/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21771/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21785/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21817/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21823/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22438/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22440/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22850/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22852/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22854/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25382/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25390/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25393/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25394/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25398/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25402/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25850/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25861/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25893/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25894/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25895/?format=api"
    ],
    "dataLineage": "Data were collected during a co-ordinated 3 aircraft flying campaign in August 2000 based at Oberpfaffenhofen in Southern Germany. Data files submitted as is to the BADC archive in 2000/2001.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1723/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/2466/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/14434/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/6573/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/2463/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11621/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11622/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11623/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11624/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11626/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54234/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11620/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11619/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54235/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/2470/?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"
        }
    ]
}