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/40858/?format=api

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

{
    "ob_id": 40858,
    "uuid": "5e78ff91e9cd4143bfa3b7358efd2607",
    "title": "ForestScan: Tree census data (diameter and species name) of FBRMS-01: Paracou, French Guiana 1ha plot IRD-CNES, October 2021",
    "abstract": "This dataset consists of data collected during the October 2021 census. A few trees were also measured in January 2022 as they could not be accessed in 2021.  The data collection includes treeID, position, DBH_cm (girth in cm), observations, POM_cm (Point of measurement) status, census, date, family, genus and species. Botanical identification was done by Julien Engel (IRD). Trees were positioned using TLS scan by Olivier Martin. This tree census was funded by CNES (France).",
    "keywords": "Tree census data of FBRMS-01: Paracou, French Guiana, plot IRD-CNES",
    "publicationState": "citable",
    "dataPublishedTime": "2025-03-28T14:55:01",
    "doiPublishedTime": "2025-03-28T16:51:47.417139",
    "updateFrequency": "",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/40857/?format=api",
        "dataPath": "/neodc/forestscan/data/french_guiana/paracou/Inventory-Paracou2021-CNESplot",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 54882,
        "numberOfFiles": 3,
        "fileFormat": "Text file"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12164/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4713/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/13271/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/40337/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/43715/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/40623/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30128/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198720/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198721/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198722/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198723/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198724/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198725/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208915/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208916/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/209165/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/209166/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2528/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://creativecommons.org/licenses/by/4.0/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}