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/866/?format=api

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

{
    "ob_id": 866,
    "uuid": "67ac200fa0f13e5a68faab025576b9a7",
    "title": "MSF Fourier Transform spectrometers data at the STFC MSF for the CWVC-HITRAN campaign",
    "abstract": "The aim of HITRAN (high-resolution transmission molecular absorption database) was to characterise the amount and wavelength-dependence of absorption by water vapour and other atmospheric species. It was part of the Natural Environment Research Council (NERC) funded Clouds, Water Vapour and Climate (CWVC) program. The dataset contains spectral line parameters derived from laboratory measurements on pure water vapour, and mixtures of water vapour and air. The measurements were made at STFC Rutherford Appleton Laboratory Molecular Spectroscopy Facility, and the line fitting was carried out by the Department of Meteorology at the University of Reading. The spectral line parameters are displayed in HITRAN format. Water vapour lines were fitted to the laboratory data in the spectral range 5037 to 5585 cm-1. These data are public.",
    "keywords": "ATMOSPHERE EARTHSCIENCE",
    "publicationState": "published",
    "dataPublishedTime": "2007-02-16T16:37:36",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/867/?format=api",
        "dataPath": "/badc/cwvc/data/H2O_absorption",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 5487786,
        "numberOfFiles": 4,
        "fileFormat": "&lt;div property=\"cedacat:formats\"&gt;\n&lt;div class=\"formats\"&gt;Availability of data and file format&lt;/div&gt;\n&lt;p&gt;\nData are stored in the BADC\n&lt;a href=\"http://badc.nerc.ac.uk/cgi-bin/data_browser/data_browser/badc/cwvc/data/H2O_absorption\"&gt;CWVC HITRAN project data archive&lt;/a&gt;.\n\n&lt;/p&gt;&lt;p&gt;\nThe data are in &lt;a href=\"http://badc.nerc.ac.uk/help/formats/hitran/\"&gt;hitran&lt;/a&gt;  \nformat.\n&lt;/p&gt;\n\n\n&lt;p /&gt;&lt;/div&gt;\n"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/239/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/11/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25844/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52354/?format=api"
    ],
    "dataLineage": "Data files supplied as is by the Science and Technology Facilities Council (STFC) Molecular Spectroscopy Facility (MSF) in 2004, and stored in the BADC archive.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/591/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/868/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/865/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2830/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2834/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2832/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2833/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2838/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2829/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2828/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2831/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2835/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54646/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2836/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/2837/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/871/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2526/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}