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/8203/?format=api

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

{
    "ob_id": 8203,
    "uuid": "bde3e07047e99cdf61908c3e93d51c66",
    "title": "Global Ozone Monitoring Experiment-2 (GOME-2): Atmospheric Spectral METOP-A data at Level 1b",
    "abstract": "The Global Ozone Monitoring Experiment–2 (GOME–2), is an optical spectrometer, fed by a scan mirror which enables across–track scanning in nadir, as well as sideways viewing for polar coverage and instrument characterisation measurements using the moon. The scan mirror directs light into a telescope, designed to match the field of view of the instrument to the dimensions of the entrance slit. This scan mirror can also be directed towards internal calibration sources or towards a diffuser plate for calibration measurements using the sun.\r\n\r\nThis dataset contains atmospheric spectra (Level 1b data) from the GOME-2 instrument on-board the Eumetsat Polar System (EPS) Metop-A satellite.",
    "keywords": "GOME, ozone, trace gases",
    "publicationState": "published",
    "dataPublishedTime": "2009-03-19T15:11:07",
    "doiPublishedTime": null,
    "updateFrequency": "unknown",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/32894/?format=api",
        "dataPath": "/neodc/gome2_metop_a/data/l1b/",
        "oldDataPath": [
            "https://api.catalogue.ceda.ac.uk/api/v2/results/8204/?format=api"
        ],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 56068709863464,
        "numberOfFiles": 88732,
        "fileFormat": "Data are EPS native formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/2350/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/182/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21771/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25383/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25394/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25879/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25935/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25982/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25983/?format=api"
    ],
    "dataLineage": "Data collected and processed by EUMETSAT before a copy was obtained directly from EUMETSAT by NEODC",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5288/?format=api"
    ],
    "projects": [],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/8202/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30129/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33136/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33141/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33138/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33139/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33140/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33142/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46131/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33137/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/8211/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2621/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "noaccess",
            "accessRoles": null,
            "label": "noaccess: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/gome-2.pdf",
            "licenceClassifications": "unstated, any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}