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/1042/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 1042,
    "uuid": "220f1c04ffe39af29233b78c2cf2699a",
    "title": "Operational Numerical Weather Prediction (NWP) Output from the North Atlantic European (NAE) Part of the Met Office Unified Model (UM)",
    "abstract": "Data from the operational NWP (Numerical Weather Prediction) output from the North Atlantic European (NAE) part of the Met Office Unified Model. The NAE model runs on a grid centred around the UK. Analyses and first forecast steps are stored to give an hourly resolution for 6 hours following each analysis time-step. This archive currently holds data from January 2012 onwards but data will be back populated for earlier years.",
    "keywords": "NWP, Met Office, UM, unified model, Global atmospheric model",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2013-09-18T19:20:20",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/1043/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/1046/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/1048/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/1050/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/1052/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/1054/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3940/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3942/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3944/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3946/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3948/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3950/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/7580/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/7582/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/7584/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/7586/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/7588/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/7590/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13823/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13825/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13827/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13829/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13831/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13835/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13837/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13839/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13841/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/762/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/763/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3320/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3322/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3323/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3324/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46814/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3321/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41531/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41532/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54748/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/168744/?format=api"
    ]
}