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/22087/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 22087,
    "uuid": "3982248dd440444ebee68e2ae64a0333",
    "title": "WCRP CMIP5: National Center for Atmospheric Research (NCAR) CCSM4 model output collection",
    "abstract": "WCRP CMIP5: National Center for Atmospheric Research (NCAR) CCSM4 model output collection.",
    "keywords": "CMIP5, WCRP, climate change, NCAR, CCSM4, CMIP",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2017-03-17T14:12:03.203578",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22086/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22090/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22093/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22096/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22099/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22102/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22105/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22108/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22111/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22114/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22117/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22120/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22123/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22126/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22129/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22132/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22135/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22138/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22141/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22144/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22147/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22150/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22153/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22156/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22159/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22162/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22165/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22168/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22171/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22174/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22177/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22180/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22183/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22189/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22192/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22195/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22198/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22201/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22204/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/22207/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/88562/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/88555/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/88556/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/88557/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/88558/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/88554/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/88560/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/88561/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/88559/?format=api"
    ]
}