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/21630/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 21630,
    "uuid": "5bf40de9960d4e76b2eced9144eb2e74",
    "title": "WCRP CMIP5: The MIROC team MIROC4h model output collection",
    "abstract": "WCRP CMIP5: The MIROC team MIROC4h model output collection.The MIROC team consisted of the following agencies: Atmosphere and Ocean Research Institute (AORI) and Japan Agency for Marine-Earth Science and Technology (JAMSTEC).",
    "keywords": "CMIP5, WCRP, climate change, MIROC, MIROC4h, CMIP",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2013-11-21T13:06:51.410096",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21629/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21633/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21636/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21639/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21642/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21645/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21648/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21651/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21654/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21657/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21660/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21663/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/21666/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85514/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85503/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85504/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85507/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85508/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85512/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85513/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85502/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85505/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85509/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85506/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85510/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/85511/?format=api"
    ]
}