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/23650/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 23650,
    "uuid": "9b8aa82e39364cf48b95113d38fc2540",
    "title": "WCRP CMIP5: Centro Euro-Mediterraneo per I Cambiamenti Climatici (CMCC) CMCC-CM model output collection",
    "abstract": "WCRP CMIP5: Centro Euro-Mediterraneo per I Cambiamenti Climatici (CMCC) CMCC-CM model output collection.",
    "keywords": "CMIP5, WCRP, climate change, CMCC, CMCC-CM, CMIP",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2017-03-17T14:13:33.568316",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23649/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23653/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23656/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23659/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23662/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23665/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23668/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23671/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23674/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23677/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23680/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23683/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23686/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23689/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/23692/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/96497/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/96490/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/96491/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/96492/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/96493/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/96489/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/96495/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/96496/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/96494/?format=api"
    ]
}