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/6302/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 6302,
    "uuid": "00f58d1d7b6c8f38993e77c79e72da92",
    "title": "European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis Interim (ERA-Interim) model data",
    "abstract": "ERA-Interim is the latest European Centre for Medium-Range Weather Forecasts (ECMWF) global atmospheric reanalysis of the period 1989 to August 2019. This follows on from the ERA-15 and ERA-40 re-analysis projects. The dataset includes data on surface, PV, potential temperature and pressure surfaces. Model level data available as GRIB formatted data on spectral and reduced Gaussian grids. \r\n\r\nMonthly mean of daily mean and  synoptic monthly mean data are also available as part of this collection.\r\n\r\nAdditional datasets derived from these data are also available.",
    "keywords": "ECMWF, ERA, ERA, Interim, reanalysis, surface, model, Gaussian, N256, analysis, forecast, monthly-mean",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2009-12-10T03:19:47",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6303/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6312/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6314/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6316/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6318/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6320/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6322/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6324/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6326/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6328/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6330/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6333/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14465/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26050/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26051/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26052/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26053/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26054/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26055/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26056/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26057/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26059/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26060/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26061/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26067/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26069/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26071/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/26073/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4104/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4105/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/10315/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26657/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41018/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41019/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26658/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26659/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26660/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26662/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26656/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/109142/?format=api"
    ]
}