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/10998/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 10998,
    "uuid": "3723592aadb362e4138750708d27f8fe",
    "title": "CCMVal-2 (Chemistry Climate Model Validation Activity 2) coupled chemistry climate models outputs",
    "abstract": "CCMVal was a large international effort to improve understanding of Chemistry-Climate Models (CCMs) and their underlying GCMs (General Circulation Models) through process-oriented evaluation, along with discussion and coordinated analysis of science results. \r\n\r\nThis dataset collection contains atmospheric chemical model feedback from research centres around the world.\r\n\r\nCCMVal was part of the World Climate Research Programme's (WCRP), which mission is to facilitate analysis and prediction of Earth system variability and change for use in an increasing range of practical applications of direct relevance, benefit and value to society. \r\n\r\nThis project was coordinated by SPARC (Stratosphere-troposphere Processes And their Role in Climate) as a core project of the World Climate Research Programme.\r\n",
    "keywords": "CCMVal, climate, model, CCM's, GCM's",
    "discoveryKeywords": [],
    "publicationState": "published",
    "dataPublishedTime": "2012-02-18T15:43:25",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/10999/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/7336/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/7337/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39690/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39689/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39696/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39691/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39692/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39693/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41756/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41758/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54744/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41757/?format=api"
    ]
}