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/21936/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 21936,
    "uuid": "f8271364bd914ad09803191057dfcaae",
    "title": "WCRP CMIP5: The MIROC team MIROC-ESM-CHEM model output collection",
    "abstract": "WCRP CMIP5: The MIROC team MIROC-ESM-CHEM model output collection.The MIROC team consisted of the following agencies: Japan Agency for Marine-Earth Science and Technology (JAMSTEC) and Centre for Climate System Research / National Institute for Environmental Studies, Japan.",
    "keywords": "CMIP5, WCRP, climate change, MIROC, MIROC-ESM-CHEM, CMIP",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2014-02-23T10:29:52.289616",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21935/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21939/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21942/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21945/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21948/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21951/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21954/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21957/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87775/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87764/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87765/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87768/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87769/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87773/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87774/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87763/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87766/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87770/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87767/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87771/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/87772/?format=api"
    ]
}