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/8295/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 8295,
    "uuid": "ffdb2eae199faa5de3be5838ea92dd96",
    "title": "Data from the Infrared Atmospheric Sounding Interferometer (IASI) on-board the Eumetsat Polar System (EPS) Metop-B Satellite",
    "abstract": "Data from the Infrared Atmospheric Sounding Interferometer (IASI) instrument on-board the Eumetsat Polar System Metop-B satellite. The IASI is designed to measure the infrared spectrum emitted by the Earth.\n\nIASI provides infrared soundings of the temperature profiles in the troposphere and lower stratosphere, moisture profiles in the troposphere, and some of the chemical components playing a key role in the climate monitoring, global change and atmospheric chemistry.  Data were directly acquired from Eumetsat.",
    "keywords": "",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2011-06-11T13:59:26",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/8296/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/8304/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5324/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33271/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33277/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44795/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44796/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33272/?format=api"
    ]
}