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/5561/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 5561,
    "uuid": "70ac88bc486108ce47468f43382af020",
    "title": "CLOUDMAP2 project cloud products over Europe from the Along Track Scanning Radiometer 2 (ATSR-2)",
    "abstract": "The CLOUDMAP 2 project cloud products include cloud top pressure, height, phase, fraction, effective radius and optical depth derived using a variational analysis method applied to data from the Along Track Scanning Radiometer-2 (ATSR-2) over Europe. These data are the result of a contract to Eumetsat for application to the Spinning Enhanced Visible Infra-Red Imager (SEVIRI) and partly under the European Framework 5 CLOUMAP2 project.",
    "keywords": "cloudmap2, cloud",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2003-12-10T03:02:08",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/5562/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14303/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14305/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3654/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3655/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/10293/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12889/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/24186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/24185/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/24191/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/24187/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/24188/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/24189/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42549/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42551/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54968/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42550/?format=api"
    ]
}