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/45474/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 45474,
    "uuid": "9d26d3b145004db89bd30e23713aac96",
    "title": "REVEAL: in-situ airborne observations by the FAAM BAE-146 aircraft",
    "abstract": "In-situ airborne observations by the FAAM BAE-146 aircraft for REVEAL FAAM Aircraft Project.",
    "keywords": "REVEAL, FAAM, airborne, atmospheric measurments",
    "discoveryKeywords": [],
    "publicationState": "working",
    "dataPublishedTime": "2025-09-11T09:34:53",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/45473/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/45478/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/45486/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/45490/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/45498/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/45502/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/45506/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/45510/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/45637/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/217521/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/217522/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/217523/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/217524/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/217525/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/217526/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/217527/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/217528/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/217529/?format=api"
    ]
}