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/25978/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 25978,
    "uuid": "f65252bf8ee5448baa1ae060cd07703a",
    "title": "Quality Assurance for Essential Climate Variables (QA4ECV)",
    "abstract": "The FP7 QA4ECV project was initiated in 2014 to demonstrate how reliable and traceable quality information can be provided for satellite and ground-based measurements of climate and air quality parameters. The project developed and applied a Quality Assurance framework on new and improved multi-decadal data records of the Land ECVs Albedo, Leaf Area Index (LAI), and Fraction of Absorbed Photosynthetically Active Radiation (FAPAR), and on the Atmosphere ECVs nitrogen dioxide (NO2), formaldehyde (HCHO), and carbon monoxide (CO).",
    "keywords": "",
    "discoveryKeywords": [],
    "publicationState": "preview",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/25938/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/25941/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/25942/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/25945/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/25947/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/25973/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204893/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108647/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108648/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204889/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204890/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204891/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204892/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108646/?format=api"
    ]
}