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/16532/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 16532,
    "uuid": "d49440ea831142838f94fb2859197e08",
    "title": "COSMICS: in-situ airborne observations by the FAAM BAE-146 aircraft",
    "abstract": "In-situ airborne observations by the FAAM BAE-146 aircraft for COSMICS - Cold-air Outbreak and sub-Millimetre Ice Cloud Study.",
    "keywords": "COSMICS, FAAM, airborne, atmospheric measurments",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2016-01-12T12:56:05",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16536/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16611/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16615/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/17643/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/17647/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/17659/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/17663/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/17667/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/17671/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/17675/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/63386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/63378/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/63379/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/63385/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/63377/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/63382/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/63383/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/63384/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/63380/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/63381/?format=api"
    ]
}