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/27881/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 27881,
    "uuid": "e489099fb2844a1192036a6323238ef4",
    "title": "Zwamps: in-situ airborne observations by the FAAM BAE-146 aircraft",
    "abstract": "In-situ airborne observations by the FAAM BAE-146 aircraft for ZWAMPS FAAM Aircraft Project (Zwamps).",
    "keywords": "Zwamps, FAAM, airborne, atmospheric measurments",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2019-10-07T14:51:01",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27880/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27883/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27885/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27887/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/30617/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/117333/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/117325/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/117326/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/117332/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/117324/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/117329/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/117330/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/117331/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/117327/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/117328/?format=api"
    ]
}