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/39041/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 39041,
    "uuid": "40c2fe53cce4446c8cf1321318ab62bf",
    "title": "PRIMAVERA: European Centre for Medium-Range Weather Forecasts (ECMWF) ECMWF-IFS-HR model output collection",
    "abstract": "PRIMAVERA Project : Collection of simulations from the European Centre for Medium-Range Weather Forecasts (ECMWF) ECMWF-IFS-HR model.",
    "keywords": "PRIMAVERA, HighResMIP, climate change, ECMWF, ECMWF-IFS-HR",
    "discoveryKeywords": [],
    "publicationState": "published",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/39039/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/39042/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/39044/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/39047/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/39160/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/39163/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/189275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/189268/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/189269/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/189270/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/189271/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/189272/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/189267/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/189274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/189273/?format=api"
    ]
}