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/15357/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 15357,
    "uuid": "41216812e26d458dbef9daa603050538",
    "title": "VACAR: surface uv-lidar from the Chilbolton Observatory and in-situ airborne observations by the FAAM BAE-146 aircraft",
    "abstract": "In-situ airborne observations by the FAAM BAE-146 aircraft for Variational Assimilation of Cloud Affected Radiances (VACAR) with accompanying surface based UV Raman lidar observations from the Chilbolton Observatory, Hampshire",
    "keywords": "VACAR, COSIC, FAAM, airborne, atmospheric measurments",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2014-07-14T13:38:12",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/15356/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/15365/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16154/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16159/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16163/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/17835/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/17847/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/18061/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/18133/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/18137/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19843/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/59482/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/59474/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/59475/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/59480/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/59481/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/59473/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/59478/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/59479/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/59476/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/59477/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75310/?format=api"
    ]
}