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/6742/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 6742,
    "uuid": "50d3bcfabff933e00e707f219723f3ad",
    "title": "QUEST Earth System Data Initiative (QESDI)",
    "abstract": "QUEST projects both used and produced an immense variety of global data sets that needed to be shared efficiently between the project teams. These global synthesis data sets are also a key part of QUEST's legacy, providing a powerful way of communicating the results of QUEST among and beyond the UK Earth System research community.\r\n\r\nThis dataset collection contains climatology, soil. population, ecosystem and land cover data.\r\n\r\nTo facilitate this data exchange, and to avoid replication of the often labour-intensive efforts to source and visualize data, QUEST set up the QUEST Earth System Data Initiative - QESDI - a mechanism for easy, centralized access with flexible statistical and visualization tools for consistent processing and presentation of global data sets.",
    "keywords": "QUEST, QESDI, ISLSCP II, soil, ecosystem, climatology",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2009-08-25T10:57:29",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6743/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6745/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6750/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6756/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19070/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19074/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19076/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19077/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4436/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4437/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28950/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28948/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28951/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28952/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28953/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46801/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72551/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28949/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72552/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72548/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72546/?format=api"
    ]
}