Get a list of Collections objects. Collections have a 1:1 mapping with Observations.

### Available end points:

- `/observationcollections/` - Will list all Collections in the database
- `/observationcollections.json` - Will return all Collections in json format
- `/observationcollections/<object_id>/` - Returns Collections object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `uuid`
- `title`
- `keywords`
- `discoveryKeywords`
- `publicationState`

### How to use filters:

- `/observationcollections/?uuid=ab4ca8d019d148f78afba1cd20872bdd`

- `/observationcollections.json?publicationState=citable`

GET /api/v2/observationcollections/23821/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 23821,
    "uuid": "e3494256b4674e50973872839030674c",
    "title": "WCRP CMIP5: The NIMR-KMA team HadGEM2-AO model output collection",
    "abstract": "WCRP CMIP5: The NIMR-KMA team HadGEM2-AO model output collection.The NIMR-KMA team consisted of the following agencies: National Institute of Meteorological Research (NIMR) and Korea Meteorological Administration (KMA).",
    "keywords": "CMIP5, WCRP, climate change, NIMR-KMA, HadGEM2-AO, CMIP",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2017-03-17T14:00:20.266438",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23820/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23824/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23827/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23830/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23833/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/97440/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/97431/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/97432/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/97438/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/97439/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/97430/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/97434/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/97435/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/97433/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/97436/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/97437/?format=api"
    ]
}