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/25939/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 25939,
    "uuid": "5fda5ee95a544a3b894dd4a5392be618",
    "title": "Sentinel 2B: High-resolution optical imaging data from the Multispectral Instrument (MSI)",
    "abstract": "This dataset collection contains land monitoring data from the Multispectral Instrument (MSI) on the European Space Agency (ESA) Sentinel 2B satellite. Sentinel 2B was launched on 7th March 2017 and provides sun-synchronous platform for the multispectral imaging data. The instrument uses 13 spectral bands from visible to the near infrared to obtain images with a swath width of 290km. Level 1C processing provides Top-Of-Atmosphere (TOA) reflectances in cartographic geometry. A further processing level, bottom-of-atmosphere (BOA) reflectance in cartographic geometry (prototype product) can be produced by the user with the Sentinel 2 toolbox. The BOA mode allows for the accurate assessment of biophysical parameters e.g. Leaf Area Index, with reduced cloud interference.",
    "keywords": "Sentinel, Multispectral Instrument, MSI",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2016-11-16T16:24:30",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/25276/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108427/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108422/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108425/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108423/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108424/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108426/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108429/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108428/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108430/?format=api"
    ]
}