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/2295/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 2295,
    "uuid": "b6c714aad70936d663e2e235aa91187c",
    "title": "Euroclim500 - Causes of change in European mean and extreme climate over the past 500 years: climate variable output from HadCM3 numerical model",
    "abstract": "Numerical climate output from the HadCM3 climate model simulation runs for the NERC funded Euroclim500 project:  Causes of change in European mean and extreme climate over the past 500 years. These data were produced by Andrew Schurer,  Mike Mineter and Simon Tett using the HadCM3 climate model on the HECTOR supercomputer at the University of Edinburgh.",
    "keywords": "HadCM3, Climate",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2013-08-14T14:38:31",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/2296/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/2300/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/2303/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/2305/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/2307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/2309/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/2311/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/2313/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1589/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1590/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11124/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11128/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11125/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11126/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11127/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43422/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43426/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11123/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46769/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43423/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43424/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/55030/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43425/?format=api"
    ]
}