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/28952/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 28952,
    "uuid": "69323c36acb840b284f670df8da693e2",
    "title": "WCRP CMIP6: Norwegian Climate Centre (NCC) NorESM2-LM model output collection",
    "abstract": "World Climate Research Programme (WCRP) Coupled Model Intercomparison Project Phase 6 (CMIP6): Collection of simulations from the Norwegian Climate Centre (NCC) NorESM2-LM 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, NCC, NorESM2-LM",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28948/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28949/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28950/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28954/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28957/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/28960/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/29130/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30929/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30932/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31137/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31140/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31226/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31229/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31232/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31235/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31238/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31241/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31454/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31457/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31460/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31463/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31532/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/33480/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34254/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34287/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34413/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34416/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34419/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34422/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34548/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40049/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/123421/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/123422/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/123423/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/123424/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/123425/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/123428/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/123429/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/123430/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/123427/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/123426/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/165685/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/165686/?format=api"
    ]
}