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/29258/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 29258,
    "uuid": "75cf176e53b648a3bae58168f4c20218",
    "title": "WCRP CMIP6: Centro Euro-Mediterraneo per I Cambiamenti Climatici (CMCC) CMCC-CM2-HR4 model output collection",
    "abstract": "World Climate Research Programme (WCRP) Coupled Model Intercomparison Project Phase 6 (CMIP6): Collection of simulations from the Centro Euro-Mediterraneo per I Cambiamenti Climatici (CMCC) CMCC-CM2-HR4 model.\n\nThe official CMIP6 Citation, and its associated DOI, is provided as an online resource linked to this record.",
    "keywords": "CMIP6, WCRP, climate change, CMCC, CMCC-CM2-HR4",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/29256/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31002/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31005/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31115/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/33714/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/33717/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/33720/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/33723/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34149/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34152/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125169/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125170/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125171/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125172/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125173/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125176/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125177/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125178/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125175/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125174/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/166093/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/166094/?format=api"
    ]
}