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/38960/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 38960,
    "uuid": "73e5a395f46a4c61918ef82b03528dcc",
    "title": "PRIMAVERA: Centro Euro-Mediterraneo per I Cambiamenti Climatici (CMCC) CMCC-CM2-HR4 model output collection",
    "abstract": "PRIMAVERA Project : Collection of simulations from the Centro Euro-Mediterraneo per I Cambiamenti Climatici (CMCC) CMCC-CM2-HR4 model.",
    "keywords": "PRIMAVERA, HighResMIP, climate change, CMCC, CMCC-CM2-HR4",
    "discoveryKeywords": [],
    "publicationState": "published",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/38958/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/38961/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/38963/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/38965/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/38967/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187354/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187347/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187348/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187349/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187350/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187351/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187346/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187353/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187352/?format=api"
    ]
}