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/25327/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 25327,
    "uuid": "a8ef5ff945f14205b1716fedae239b0e",
    "title": "WCRP CCMI-1: Goddard Space Flight Center (GSFC) GEOSCCM model output",
    "abstract": "WCRP CCMI-1: Goddard Space Flight Center (GSFC) GEOSCCM model output.\r\n\r\nThe WCRP Chemistry Climate Model Initiative phase 1 (CCMI-1), is a global chemistry climate model intercomparison project, coordinated by the University of Reading on behalf of the World Climate Research Program (WCRP).",
    "keywords": "CCMI-1, WCRP, climate change, chemistry, GSFC, GEOSCCM",
    "discoveryKeywords": [],
    "publicationState": "preview",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/103813/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/103811/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/103812/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/103814/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/103815/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/103816/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/103817/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/103810/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/103818/?format=api"
    ]
}