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/29923/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 29923,
    "uuid": "400efba73c1d40c78f44918429ce9c99",
    "title": "PICASSO: data from radiosonde flights, Chilbolton weather radar and in-situ airborne observations by the FAAM BAE-146 aircraft",
    "abstract": "In-situ airborne observations by the FAAM BAE-146 aircraft, radiosonde launches and the Chilbolton weather radar for the Parameterizing Ice Clouds using Airborne obServationS and triple-frequency dOppler radar data (PICASSO) project.\r\n\r\nThis dataset collection also links to a range of third party datasets that were also utilised by the project participants (Met Office rain radar, surface charts, Meteosat images, surface data from Chilbolton instruments and data from the X-band radar deployed at the site at the same time as the PICASSO observation days).",
    "keywords": "PICASSO, FAAM, airborne, atmospheric measurements",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "preview",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3471/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3482/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3531/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/5746/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12294/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14642/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14644/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14646/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14648/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14680/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14698/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14700/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26298/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26302/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26306/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26314/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26318/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26322/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26326/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26387/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26391/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27922/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27950/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27952/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27954/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27958/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27960/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/31948/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36833/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36862/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129272/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129271/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129268/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129269/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129270/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129276/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129277/?format=api"
    ]
}