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/7652/?format=api

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

{
    "ob_id": 7652,
    "uuid": "64e8a72ca7bdda81191a263be8b9b320",
    "title": "NAMBLEX: University of Leicester's j(HCHO-NR) Spectral Radiometer Data from the Mace Head Atmospheric Research Facility, Ireland",
    "abstract": "The North Atlantic Marine Boundary Layer Experiment (NAMBLEX) campaign was conducted at Mace Head in Ireland from 24 July 2002 to 3 September 2002. During this campaign a suite of instruments, including several from the Universities Facility for Atmospheric Measurements (UFAM). This dataset consists of j(HCHO-NR) readings taken every minute from the University of Leicester's spectral radiometer.",
    "keywords": "NAMBLEX, Atmospheric Chemistry, Boundary Layer",
    "publicationState": "published",
    "dataPublishedTime": "2007-02-25T05:23:50",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/7653/?format=api",
        "dataPath": "/badc/namblex/data/leic-sr-jhcho-nr/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 1916144,
        "numberOfFiles": 3,
        "fileFormat": "Data are NASA-Ames 1001 formated"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3498/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/508/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70171/?format=api"
    ],
    "dataLineage": "Data were obtained by the Universities Facility for Atmospheric Measurements (UFAM) instruments in July-September 2002. Data provided as is by the NAMBLEX campaign participants to the BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4964/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/7595/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/7592/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31857/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31856/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31859/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31860/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31861/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31863/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31862/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/31858/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/7654/?format=api",
    "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"
        }
    ]
}