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/2755/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 2755,
    "uuid": "f32672c33ad46d34b07657818b5bd184",
    "title": "Data from the Egrett Microphysics Experiment, with Radiation, Lidar and Dynamics campaigns (EMERALD-1 and EMERALD-2), part of the Clouds, Water Vapour and Climate (CWVC) programme",
    "abstract": "The EMERALD projects were airborne measurement campaigns designed to study dynamical, microphysical and infra-red radiative properties of cirrus clouds, using both in-situ and remote measurement techniques. The dataset contains static air temperature, static air pressure, relative humidity, water vapour mixing ratio, and ozone mixing ratio. These data are part of the NERC Clouds, Water Vapour and Climate (CWVC) programme.",
    "keywords": "",
    "discoveryKeywords": [
        1138,
        1142
    ],
    "publicationState": "published",
    "dataPublishedTime": "2007-12-10T02:34:25",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/44919/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/44925/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/44926/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/44927/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/44930/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/44931/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1916/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/10307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1917/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12529/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12535/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12531/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12532/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12533/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44433/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12530/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44431/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54853/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44429/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44430/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44428/?format=api"
    ]
}