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/13687/?format=api

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

{
    "ob_id": 13687,
    "uuid": "1f61866afdf848349df7eabbc6ba2c07",
    "title": "MERIS Terrestrial Chlorophyll Index (MTCI) Level 3 composites: Southern Africa",
    "abstract": "Global and regional composite (Level 3) products of the MEdium Resolution Imaging Spectrometer (MERIS) Level 2 geophysical data are generated by the UK Multi-Mission Product Archive Facility (UK-MM-PAF)/Infoterra Ltd. One of these products: MERIS Terrestrial Chlorophyll Index (MTCI) data are available from NEODC. The products are in GEOTIFF format, on latitude-longitude geocoded grids, and are accompanied by an XML-metadata file and a JPEG browse image.",
    "keywords": "MERIS, Terrestrial Chlorophyll Index, TCI",
    "publicationState": "published",
    "dataPublishedTime": "2019-04-10T13:32:55",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/13688/?format=api",
        "dataPath": "/neodc/mtci/data/southern_africa",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 26817307824,
        "numberOfFiles": 356,
        "fileFormat": "Data are gzipped tar files containing metadata (XML), preview image (JPEG) and L3 product (GeoTIFF)."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/2242/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22325/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22334/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25848/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25902/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25927/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25930/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25932/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25985/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25986/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25987/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25988/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25989/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25990/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25991/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25992/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25993/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25994/?format=api"
    ],
    "dataLineage": "These data were transferred to NEODC from Infoterra via File Transfer Protocol (FTP)",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/7784/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/7781/?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/52320/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52306/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52308/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52314/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52315/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52311/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52309/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54816/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52312/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52313/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52316/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52317/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52318/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52319/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/7785/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2597/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "mtci",
            "label": "restricted: mtci group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/mtci.pdf",
            "licenceClassifications": "unstated, any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}