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/4583/?format=api

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

{
    "ob_id": 4583,
    "uuid": "f333f33ff7f10ef5fdbcd26f10eff1d3",
    "title": "MRF A779 JET2000 flight: Airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft",
    "abstract": "The African Easterly Jet (AEJ) is part of a climatic system which is of critical importance to African and global weather and climate, but is poorly observed and not well represented in model analyses. For the JET2000 project the Met Office Met Research flight (MRF) aircraft performed four flights, involving transects along and across the jet and the baroclinic zone, to make observations of unprecedented resolution for this part of the world. 110 dropsondes were dropped along the fight path. \r\n\r\nThe Meteorological Research Flight (MRF) was a Met Office facility, which flew a well-instrumented C-130 Hercules aircraft for atmospheric research purposes. The flight was located over Cape Verde and Niamey, Niger.\r\n\r\nThis dataset contains airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft flight A779 for the JET2000 project.",
    "keywords": "JET2000, C-130",
    "publicationState": "published",
    "dataPublishedTime": "2007-02-28T23:27:54",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/4584/?format=api",
        "dataPath": "/badc/ukmo-mrf/data/a779",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 169222651,
        "numberOfFiles": 33,
        "fileFormat": "Data are NASA Ames formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/5113/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1608/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50544/?format=api"
    ],
    "dataLineage": "Data collected by instruments on-board the MRF C-130 during flight A779. Data acquired by BADC for archiving during the JET2000 project.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3083/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8637/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8638/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8639/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8640/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8641/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8642/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8643/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/4559/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/5570/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/431/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/4556/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21255/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21259/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21254/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21253/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21256/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21257/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21258/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21261/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21260/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/19469/?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"
        }
    ]
}