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/3791/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 3791,
    "uuid": "c5f77b9eade060988ee9b067678aaabc",
    "title": "Met Office Hadley Centre Coupled Model 3 (HadCM3) data",
    "abstract": "Numerical model data from various Hadley Centre coupled model 3 (HadCM3) experiments. These data cover various time periods, but for the climate change experimenst are typically over the range 1989-2100 and contains all atmospheric fields derived from the HadCM3 model, at various time resolutions.",
    "keywords": "HadCM3, Hadley Centre",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2006-12-10T02:40:24",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40881/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40884/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40887/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40890/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40893/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40896/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40900/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40903/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40906/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40916/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40919/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40922/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40926/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40929/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40932/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40935/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40938/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40941/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40944/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40947/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40950/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40953/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40956/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40961/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/40964/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/41601/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2533/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2534/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/10356/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18806/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18808/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18809/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18810/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18812/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43658/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43659/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18807/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72380/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199138/?format=api"
    ]
}