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/28268/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 28268,
    "uuid": "666320d5c4ac4b949a55695bfedf3958",
    "title": "WCRP CMIP6: Beijing Climate Center (BCC) BCC-ESM1 model output collection",
    "abstract": "World Climate Research Programme (WCRP) Coupled Model Intercomparison Project Phase 6 (CMIP6): Collection of simulations from the Beijing Climate Center (BCC) BCC-ESM1 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, BCC, BCC-ESM1",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28266/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28270/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28276/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28279/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28281/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28284/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28654/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28838/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28844/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28848/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28851/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28909/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28912/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28915/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28918/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/33473/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/119335/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/119336/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/119337/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/119338/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/119339/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/119342/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/119343/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/119344/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/119341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/119340/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/164787/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/164788/?format=api"
    ]
}