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/23944/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 23944,
    "uuid": "96e8b5074d724ec0b3486b2d49628876",
    "title": "WCRP CMIP5: National Centers for Environmental Prediction (NCEP) CFSv2-2011 model output collection",
    "abstract": "WCRP CMIP5: National Centers for Environmental Prediction (NCEP) CFSv2-2011 model output collection.",
    "keywords": "CMIP5, WCRP, climate change, NOAA-NCEP, CFSv2-2011, CMIP",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2017-03-17T14:54:23.091663",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23943/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23947/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23950/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23953/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23956/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23959/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23962/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23965/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23968/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23971/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23974/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23977/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23980/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23983/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23986/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98123/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98116/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98117/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98118/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98119/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98115/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98121/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98122/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98120/?format=api"
    ]
}