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/38952/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 38952,
    "uuid": "70748c581bcb4f8c9a569e3fed984f1c",
    "title": "PRIMAVERA: Max Planck Institute for Meteorology (MPI-M) MPI-ESM1-2-XR model output collection",
    "abstract": "PRIMAVERA Project : Collection of simulations from the Max Planck Institute for Meteorology (MPI-M) MPI-ESM1-2-XR model.",
    "keywords": "PRIMAVERA, HighResMIP, climate change, MPI-M, MPI-ESM1-2-XR",
    "discoveryKeywords": [],
    "publicationState": "published",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/38950/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/38954/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/39123/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/39125/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/39127/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/39129/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/39131/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187303/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187304/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187305/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187306/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187302/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187309/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/187308/?format=api"
    ]
}