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/19163/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 19163,
    "uuid": "b02ac774670248c7b8a700851ff6fd69",
    "title": "RAPID HadCM3",
    "abstract": "Rapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n",
    "keywords": "RAPID, Climate change, Atlantic Ocean's Thermohaline Circulation",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2008-12-10T02:40:23",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/4862/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/4868/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72089/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72091/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72090/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72088/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72092/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72093/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72094/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72087/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72466/?format=api"
    ]
}