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/12986/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 12986,
    "uuid": "65e424f8d8c845a4b60ef6808d179313",
    "title": "ESA-DUE GlobAlbedo Broadband Bi-directional Reflectance Distribution Functions (BRDF)",
    "abstract": "\r\n\r\nSpectral BRDF, is the fundamental description of surface reflectance, being the ratio of reflected spectral radiance (Wm-2sr-1nm-1) exiting around a direction vector Ω (relative to a surface normal vector) to the spectral irradiance (Wm-2nm-1) incident on the surface from direction Ω at some wavelength λ.",
    "keywords": "ESA, GlobAlbedo, Albedo, ",
    "discoveryKeywords": [],
    "publicationState": "preview",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12983/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12984/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50781/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49736/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105382/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105393/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105420/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105444/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105378/?format=api"
    ]
}