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/25647/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 25647,
    "uuid": "808b64d611f8433a8d1596e56bd24605",
    "title": "EU12_12: in-situ airborne observations by the NERC ARSF Dornier Do228-101 D-CALM Aircraft aircraft",
    "abstract": "In-situ airborne observations by the NERC ARSF Dornier Do228-101 D-CALM Aircraft aircraft for arsf EU12_12 project.",
    "keywords": "EU12_12, arsf, airborne, atmospheric measurments",
    "discoveryKeywords": [],
    "publicationState": "preview",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107264/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107265/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107266/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107267/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107268/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107269/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107270/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/107271/?format=api"
    ]
}