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/3567/?format=api

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

{
    "ob_id": 3567,
    "uuid": "2680422627c5099234b34bd0f2dff656",
    "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Clear Air ACROBAT Radar Data",
    "abstract": "Data were collected from the 4th of April 2002 to the present by the Ultra-violet Raman lidar at Chilbolton Observatory, Hampshire. The dataset contains measurement and display of the full Doppler spectrum, and the moments Z, v and w of air.",
    "keywords": "CFARR, radar, meteorology",
    "publicationState": "published",
    "dataPublishedTime": "2006-09-14T08:58:39",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/3568/?format=api",
        "dataPath": "/badc/chilbolton/data/radar-acrobat",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 37503990178,
        "numberOfFiles": 48571,
        "fileFormat": "&lt;div property=\"cedacat:formats\"&gt;\r\n&lt;div class=\"formats\"&gt;Data availability and file format&lt;/div&gt;\r\n&lt;p&gt;CAESAR data are stored in either &lt;a href=\"http://badc.nerc.ac.uk/help/formats/netcdf/\"&gt;NetCDF&lt;/a&gt; or &lt;a href=\"http://badc.nerc.ac.uk/help/formats/NASA-Ames/\"&gt;NASA Ames&lt;/a&gt; format.  \r\n&lt;/p&gt;&lt;/div&gt;\r\n\r\n\r\n"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1010/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/63/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22455/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50416/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55287/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55288/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55289/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55290/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55291/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55292/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55293/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55294/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55295/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55296/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55297/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55298/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55299/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55300/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55301/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55302/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55303/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55304/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55305/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55306/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55308/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55309/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92247/?format=api"
    ],
    "dataLineage": "Data are collected by 4 radar systems, of which the largest is the 3 GHz Doppler radar (CAMRa), and 4 lidar systems, at Chilbolton Observatory, Hampshire.\r\nData are prepared by Chilbolton Facility for Atmospheric and Radio Research (CFARR) staff prior to submission to BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2420/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/3569/?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/7378/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15099/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15100/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15101/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15102/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15104/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41601/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41605/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15098/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41602/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41603/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41604/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/3571/?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"
        }
    ]
}