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/24456/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 24456,
    "uuid": "e8e304c1449646d79f958becaab4276c",
    "title": "WALITEMP: in-situ airborne observations by the ATR42 - SAFIRE aircraft aircraft",
    "abstract": "In-situ airborne observations by the ATR42 - SAFIRE aircraft aircraft for WaLiTemp- Inter-comparison of airborne and ground-based lidar measurements for the characterization of atmospheric water vapour and temperature profiles (WALITEMP).",
    "keywords": "WALITEMP, EUFAR, aircraft, atmospheric",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2018-01-22T09:50:10",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/24455/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/24460/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/24464/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/24468/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100127/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100120/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100121/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100119/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100123/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100124/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100125/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100126/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100122/?format=api"
    ]
}