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/14450/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 14450,
    "uuid": "2c2d7affc1b74e2ea7c7d3c74abd5354",
    "title": "UTLS Night-Time Chemistry of the Upper Troposphere and Lower Stratosphere: NO3 and NO2 measurements",
    "abstract": "NERC-UTLS Ozone Thematic Program, 'Night-Time Chemistry of the Upper Troposphere and Lower Stratosphere' project measuring sunrise NO3 and sunset NO2 column densities above Aberystwyth, Mid-Wales.",
    "keywords": "UTLS, Night time, Chemistry",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2000-12-10T02:34:39",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14451/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14457/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56059/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56061/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56062/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56063/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56066/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56070/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56060/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56064/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56067/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56068/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56069/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/56071/?format=api"
    ]
}