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/11602/?format=api

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

{
    "ob_id": 11602,
    "uuid": "94594949023ea41d47713153ad07d44b",
    "title": "CRUTEM4.2.0.0-2013-03: Climatic Research Unit (CRU) Gridded Dataset of Global Historical Near-Surface Air TEMperature Anomalies Over Land (version 4.2.0.0 Jan. 1850 - Mar. 2013)",
    "abstract": "CRUTEM4 is a gridded dataset of global historical near-surface air temperature anomalies over land. \r\n\r\nThis specific version is CRUTEM4.2.0.0-2013-03, available for each month from January 1850 to March 2013, on a 5 degree grid. \r\n\r\nHemispheric and global anomaly series are provided. \r\n\r\nThe dataset is a collaborative product of the Climatic Research Unit at the University of East Anglia and the Met Office Hadley Centre. \r\n\r\nThe CRUTEM4 dataset is updated on a monthly basis; these updates are available from the institutions listed below (see Links).",
    "keywords": "CRUTEM, Hadley, UEA, CRU",
    "publicationState": "citable",
    "dataPublishedTime": "2013-07-19T13:42:44",
    "doiPublishedTime": "2013-09-19T23:00:00",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/11603/?format=api",
        "dataPath": "/badc/cru/data/crutem/crutem4/CRUTEM4.2.0.0-2013-03",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 6422146,
        "numberOfFiles": 9,
        "fileFormat": "All the data files (ASCII \".dat\" and netcdf \".nc\") are compressed (.gz extension).\r\nTo understand how to read the CRUTEM4.2.0.0-2013-03 data files, please refer to the CRUTEM4.2.0.0-2013-03_File_Format_explained PDF documentation (under Linked Documentation below).\r\n\r\n\r\n"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3254/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Data were prepared by Climate Research Unit group at the University of East Anglia before submission to the BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/7679/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8339/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/7680/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/13164/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/12165/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46314/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/40979/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44940/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44942/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/40980/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/40981/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/40982/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/40983/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54947/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44941/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/168520/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/168521/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/12207/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2522/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}