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/12404/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 12404,
    "uuid": "9a1295858ff14fc6acea73e356a8842c",
    "title": "GAUGE (Greenhouse gAs UK and Global Emissions) project : Ground based and airborne atmospheric measurement data collection",
    "abstract": "Collection of data produced by the GAUGE (Greenhouse gAs Uk and Global Emissions) Project.\r\n\r\nThe GAUGE project aimed to produce robust estimates of the UK Greenhouse Gas budget, using new and existing measurement networks and modelling activities at a range of scales. It aimed to integrate inter- calibrated information from ground-based, airborne, ferry-borne, balloon-borne, and space-borne sensors, including new sensor technology.\r\n\r\nGAUGE was part of the Greenhouse Gas Emissions and Feedback Programme funded by the Natural Environment Research Council (NERC).",
    "keywords": "GAUGE, FAAM, Chemistry, Gases",
    "discoveryKeywords": [
        1138,
        1142
    ],
    "publicationState": "published",
    "dataPublishedTime": "2015-06-29T14:11:00",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/4499/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/15578/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/15586/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/15920/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16025/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16081/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16085/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16093/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16097/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16101/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16105/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16109/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16113/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16548/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16552/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/16561/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26760/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26761/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27474/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27483/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27614/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27780/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27786/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8948/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47326/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47327/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47328/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47329/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47332/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47333/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47330/?format=api"
    ]
}