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/23281/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 23281,
    "uuid": "1bc1a2336af44b1d9f573b4f16e8ff76",
    "title": "WCRP CMIP5: NASA Global Modeling and Assimilation Office (NASA GMAO) GEOS-5 model output collection",
    "abstract": "WCRP CMIP5: NASA Global Modeling and Assimilation Office (NASA GMAO) GEOS-5 model output collection.",
    "keywords": "CMIP5, WCRP, climate change, NASA-GMAO, GEOS-5, CMIP",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2017-03-17T14:04:23.828534",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23280/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23284/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23287/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23290/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23293/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23296/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23299/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23302/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23305/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23308/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23311/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23314/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23317/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23320/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23323/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23326/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23329/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23332/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23335/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23338/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23344/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23347/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23350/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23353/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23356/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23359/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23362/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23365/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23368/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23371/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23374/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23377/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23380/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23383/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23389/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23392/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23395/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23398/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23401/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23404/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23407/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23410/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23413/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23416/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/94319/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/94312/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/94313/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/94314/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/94315/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/94311/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/94317/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/94318/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/94316/?format=api"
    ]
}