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/24513/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 24513,
    "uuid": "7f85573628774e1bb9cd88d46d74b8c7",
    "title": "AROMAPEX: in-situ airborne observations by the DO228-212 /D-CFFU - DLR aircraft aircraft",
    "abstract": "In-situ airborne observations by the DO228-212 /D-CFFU - DLR aircraft aircraft for AROMAPEX- APEX flights for the AROMAT-2 activity.",
    "keywords": "AROMAPEX, EUFAR, aircraft, hyperspectral, remote sensing",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2018-01-22T09:51:56",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/24512/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/24517/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100347/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100339/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100340/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100346/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100338/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100343/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100344/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100345/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/100342/?format=api"
    ]
}