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/29646/?format=api

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

{
    "ob_id": 29646,
    "uuid": "13ce539e6d8c4b5d92a50599daa89428",
    "title": "WCRP CMIP6: Canadian Centre for Climate Modelling and Analysis (CCCma) CanESM5 model output for the \"ssp370\" experiment",
    "abstract": "The World Climate Research Program (WCRP) Coupled Model Intercomparison Project, Phase 6 (CMIP6) data from the Canadian Centre for Climate Modelling and Analysis (CCCma) CanESM5 model output for the \"gap-filling scenario reaching 7.0 based on SSP3\" (ssp370) experiment. These are available at the following frequencies: AERday, AERmon, AERmonZ, Amon, Eday, EdayZ, LImon, Lmon, Oday, Ofx, Omon, Oyr, SIday, SImon, day and fx. The runs included the ensemble members: r10i1p1f1, r10i1p2f1, r11i1p1f1, r11i1p2f1, r12i1p1f1, r12i1p2f1, r13i1p1f1, r13i1p2f1, r14i1p1f1, r14i1p2f1, r15i1p1f1, r15i1p2f1, r16i1p1f1, r16i1p2f1, r17i1p1f1, r17i1p2f1, r18i1p1f1, r18i1p2f1, r19i1p1f1, r19i1p2f1, r1i1p1f1, r1i1p2f1, r20i1p1f1, r20i1p2f1, r21i1p1f1, r21i1p2f1, r22i1p1f1, r22i1p2f1, r23i1p1f1, r23i1p2f1, r24i1p1f1, r24i1p2f1, r25i1p1f1, r25i1p2f1, r2i1p1f1, r2i1p2f1, r3i1p1f1, r3i1p2f1, r4i1p1f1, r4i1p2f1, r5i1p1f1, r5i1p2f1, r6i1p1f1, r6i1p2f1, r7i1p1f1, r7i1p2f1, r8i1p1f1, r8i1p2f1, r9i1p1f1 and r9i1p2f1.\n\nCMIP6 was a global climate model intercomparison project, coordinated by PCMDI (Program For Climate Model Diagnosis and Intercomparison) on behalf of the WCRP and provided input for the Intergovernmental Panel on Climate Change (IPCC) 6th Assessment Report (AR6).\n\nThe official CMIP6 Citation, and its associated DOI, is provided as an online resource linked to this record.",
    "keywords": "CMIP6, WCRP, climate change, CCCma, CanESM5, ssp370, AERday, AERmon, AERmonZ, Amon, Eday, EdayZ, LImon, Lmon, Oday, Ofx, Omon, Oyr, SIday, SImon, day, fx",
    "publicationState": "published",
    "dataPublishedTime": "2019-11-09T00:29:43.829935",
    "doiPublishedTime": null,
    "updateFrequency": "asNeeded",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/29647/?format=api",
        "dataPath": "/badc/cmip6/data/CMIP6/ScenarioMIP/CCCma/CanESM5/ssp370",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 3565377644916,
        "numberOfFiles": 6292,
        "fileFormat": "Data are netCDF formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8047/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/529/?format=api",
    "nonGeographicFlag": false,
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    ],
    "dataLineage": "Data were produced and verified by Canadian Centre for Climate Modelling and Analysis (CCCma) scientists before publication via the Earth Systems Grid Federation (ESGF) and a copy obtained by the Centre for Environmental Data Analysis (CEDA).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/28435/?format=api"
    ],
    "observationcollection_set": [
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    ],
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    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/29648/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2520/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/CMIP6_Terms_of_Use.pdf",
            "licenceClassifications": ""
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}