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/29315/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 29315,
    "uuid": "b7982906b1a34c4ea8beab7af74081f0",
    "title": "WCRP CMIP6: Max Planck Institute for Meteorology (MPI-M) MPI-ESM1-2-HR model output collection",
    "abstract": "World Climate Research Programme (WCRP) Coupled Model Intercomparison Project Phase 6 (CMIP6): Collection of simulations from the Max Planck Institute for Meteorology (MPI-M) MPI-ESM1-2-HR 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, MPI-M, MPI-ESM1-2-HR",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/29313/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30800/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30803/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30806/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30809/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30812/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30956/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30959/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30962/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30965/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30968/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31070/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31073/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34089/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34092/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34191/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/34194/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/38582/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125538/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125539/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125540/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125541/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125542/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125545/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125546/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125547/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125544/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/125543/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/166175/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/166176/?format=api"
    ]
}