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/30918/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 30918,
    "uuid": "7aab09ba913845b3b8aa87032cf6fd66",
    "title": "WCRP CMIP6: University of Arizona - Department of Geosciences (UA) MCM-UA-1-0 model output collection",
    "abstract": "World Climate Research Programme (WCRP) Coupled Model Intercomparison Project Phase 6 (CMIP6): Collection of simulations from the University of Arizona - Department of Geosciences (UA) MCM-UA-1-0 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, UA, MCM-UA-1-0",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30916/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31487/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31490/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31493/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31496/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/43958/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/43984/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/43987/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/134665/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/134657/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/134659/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/134660/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/134661/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/134662/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/134663/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/134664/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/134658/?format=api"
    ]
}