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/20886/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 20886,
    "uuid": "9674fce8f90d4287bf8a3884ff595e4f",
    "title": "WCRP CMIP5: Institut Pierre-Simon Laplace (IPSL) IPSL-CM5B-LR model output collection",
    "abstract": "WCRP CMIP5: Institut Pierre-Simon Laplace (IPSL) IPSL-CM5B-LR model output collection.",
    "keywords": "CMIP5, WCRP, climate change, IPSL, IPSL-CM5B-LR, CMIP",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2017-03-17T13:57:50.636225",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/20885/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/20889/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/20892/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/20895/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/20898/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/20901/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/20904/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/20907/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/20910/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/20913/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/20916/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/81683/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/81676/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/81677/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/81678/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/81679/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/81675/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/81681/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/81682/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/81680/?format=api"
    ]
}