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/26222/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 26222,
    "uuid": "43fdd19d25b44ec2a9176288d1085ef0",
    "title": "Atmospheric Chemistry In The Earth System (ACITES)",
    "abstract": "The Atmospheric Chemistry In The Earth System (ACITES) Network has been funded by the Natural Environment Research Council to bring together the atmospheric chemistry process community and the Earth system modelling community. \r\n\r\nThe ACITES data collection includes: Monthly global surface ozone concentration and ozone dry deposition flux fields from models and observation , land cover data.  The data collection also includes the python code used to create the netCDF data files.",
    "keywords": "ACITES, Atmospheric Chemistry, Ozone, Land Surface",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2018-10-16T10:07:22",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26224/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26225/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26227/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/141570/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130053/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130054/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109679/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109677/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/112054/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/112055/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130052/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109681/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109676/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109678/?format=api"
    ]
}