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/10976/?format=api

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

{
    "ob_id": 10976,
    "uuid": "4aaec0b607abe5ed25cab12adfaac5f0",
    "title": "MISR Level 2 Land Surface Data V002 (MIL2ASLS)",
    "abstract": "Land surface data including bihemispherical and directional-hemispherical reflectances (albedo), hemispherical directional and bidirectional reflectance factors (BRF), BRF model parameters, leaf-area index (LAI), fraction of photosynthetically active radiation (FPAR), and normalized difference vegetation index (NDVI) on a 1.1 km grid, derived from the Multi-angle Imaging SpectroRadiometer (MISR), on-board EOS Terra. ",
    "keywords": "MISR, NASA",
    "publicationState": "published",
    "dataPublishedTime": "2014-09-24T14:53:58",
    "doiPublishedTime": null,
    "updateFrequency": "asNeeded",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/10977/?format=api",
        "dataPath": "/neodc/misr/data/mil2asls",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 6103936304371,
        "numberOfFiles": 141591,
        "fileFormat": "Data are HDF-EOS formated"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3052/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/177/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64848/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64849/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64850/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64851/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64852/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64853/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64854/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64855/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64856/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64857/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64858/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64859/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64860/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64861/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64862/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64863/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64864/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64865/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64866/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64867/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64868/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64869/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64870/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64871/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64872/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64873/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64874/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64875/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64876/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64877/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64878/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64879/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64880/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64881/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64882/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64883/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64884/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64885/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64886/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64887/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64888/?format=api"
    ],
    "dataLineage": "The data were obtained by the MISR Science Team, which were then downloaded and made available by the Quality Assurance for Essential Climate Variable (QA4ECV) Team to the NEODC for archiving after completeness checks had been carried out using MD5 checksums to ensure bitwise complete transfers.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/7317/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/10971/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/10968/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30129/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52408/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39589/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39594/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39588/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39591/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39592/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39593/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39590/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/10980/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2559/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "https://eosweb.larc.nasa.gov/citing-asdc-data",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}