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/8172/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 8172,
    "uuid": "65a7f71acfd09155c4d21a6491b834d6",
    "title": "National Centre for Earth Observation (NCEO): Ice Sheet Dynamics Data",
    "abstract": "Theme 5 (Cryosphere and Polar Oceans) of the National Centre for Earth Observation (NCEO) is aimed at resolving uncertainties in future climate and sea-level arising from behaviour of the cryosphere.  This dataset holds timeseries of Greenland glacier velocity fluctuations and Greenland glacier calving front fluctuations as maps and backscatter intensity images for the period March-July 2011. Timeseries of Antarctica glacier velocity and calving front fluctuations are expected later this year.  The velocity fields and backscatter data were transformed to map coordinates using the GLAS/ICESat 1 km Laser Altimetry Digital Elevation Model of Greenland which is provided at Polar Stereographic grids (DiMarzio, J., Brenner, A., Schutz, R., Schuman, A. & Zwally, H.J. (2007)).",
    "keywords": "NCEO, Ice, Cryosphere",
    "discoveryKeywords": [
        1138,
        1142
    ],
    "publicationState": "published",
    "dataPublishedTime": "2012-06-27T16:45:23",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/8173/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/8179/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5272/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5273/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33070/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33076/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33069/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33071/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33072/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33073/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42394/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42391/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54738/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42392/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42393/?format=api"
    ]
}