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/26216/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 26216,
    "uuid": "b4d24b3df3754b9d9028447eb3cd89c6",
    "title": "UKCP18 Regional Climate Model Projections for the UK",
    "abstract": "UK-scale data from regional climate model for the UK from North-West Europe regional climate model runs from 1980-2080 produced by the Met Office for UK Climate Projections 2018 (UKCP18). The data is available at various temporal resolutions: daily, monthly, seasonal and annual and various spatial resolutions: on a 12km OSGB grid, for major UK river catchments and each of the countries of the United Kingdom.",
    "keywords": "UKCP18, UKCP, Climate, UK, Simulations, RCM",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2018-11-26T09:00:00",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26204/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26207/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26210/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26213/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204879/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/112304/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/112305/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/112306/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/112308/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/110964/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/112310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/112307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/112309/?format=api"
    ]
}