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/29924/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 29924,
    "uuid": "ec4926a38c0f4fb181f1e20eb93e0b64",
    "title": "ACRUISE: Atmospheric Composition and Radiative forcing changes due to UN International Ship Emissions regulations",
    "abstract": "In-situ ground based observations,  airborne observations by the FAAM BAE-146 aircraft, and process-level modelling output for the Atmospheric Composition and Radiative forcing changes due to UN International Ship Emissions regulations (ACRUISE) project.",
    "keywords": "ACRUISE, FAAM, airborne, atmospheric measurments",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2017-08-03T12:15:43",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/25285/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27968/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27970/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27972/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27974/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27976/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27978/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27980/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27982/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27984/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27986/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27988/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27990/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/27992/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36866/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36941/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36945/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36949/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36953/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36957/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36961/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36965/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36969/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36973/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36977/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36981/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36985/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36989/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36993/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/36997/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/37001/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/37458/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/37462/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/37466/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/37470/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129278/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129284/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129285/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129279/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129280/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129281/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129282/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129283/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129286/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129287/?format=api"
    ]
}