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/6580/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 6580,
    "uuid": "e9eb2767d2a69f76de28b12d154d4977",
    "title": "Ensemble of Atmospheric Chemical Assimilation Model Output as part of the Cambridge Chemical Assimilation Data, part of the Assimilation of Remote-sensed Data for Applications in the Atmospheric and Oceanographic Sciences (ARDAAOS) program",
    "abstract": "The Cambridge Chemical Assimilation Data was produced as part of the Assimilation of Remote-sensed Data for Applications in the Atmospheric and Oceanographic Sciences (ARDAAOS) Natural Environment Research Council (NERC) thematic programme. It presents Chemical assimilation data from multiple sources, which is processed into a common file format making it easy to compare data from the various field campaigns and satellite missions.",
    "keywords": "",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2006-12-10T03:03:09",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6581/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4296/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4297/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28405/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28406/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28407/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28408/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28410/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44251/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44254/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28404/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44252/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44253/?format=api"
    ]
}