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/37370/?format=api

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

{
    "ob_id": 37370,
    "uuid": "c6e27bda1fc849c098a7fff7ff69fd5a",
    "title": "Halkali Agricultural School (Istanbul, Turkey): Daily Meteorological Observations 1896-1917",
    "abstract": "Daily weather observations measured by students and staff at Halkali Agricultural School (a school opened in 1892 for agriculture and animal husbandry during the Ottoman period) from 1896 to 1917 in Istanbul, Turkey have been transcribed from the original publications into digital form and translated from Ottoman Turkish (the Perso-Arabic script) to English (Latin alphabet). Over 55 thousand observations of daily maximum, minimum and average temperature, rainfall, soil and under soil (0.25m) temperature, humidity, pressure, and wind speed were recovered.",
    "keywords": "Meteorology",
    "publicationState": "citable",
    "dataPublishedTime": "2022-06-08T10:23:13",
    "doiPublishedTime": "2022-06-08T10:56:10",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/37371/?format=api",
        "dataPath": "/badc/deposited2022/Ottoman_data_halkali_1896_1917",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 694017645,
        "numberOfFiles": 275,
        "fileFormat": "Data are BADC-CSV and JPEG formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/10320/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/3467/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "The Halkal Agricultural School paid increased attention to meteorological observations and weather forecasts due to the weather's significance in agriculture. Since late 1896 until 1917, students and faculty at Halkali have measured numerous parameters, including daily maximum, minimum, and average temperature, precipitation, soil and subsoil (0.25m) temperature, humidity, pressure, wind speed, wind direction, and weather status. The primary objective of these observations was to conduct agricultural activities under suitable weather conditions.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12142/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/37372/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178534/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178535/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178536/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178537/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178538/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178539/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178544/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178545/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178546/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178547/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/37373/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2526/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}