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/7781/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 7781,
    "uuid": "9ed8d70ffde5b757691f3d8124f13148",
    "title": "MEdium Resolution Imaging Spectrometer (MERIS) Level 3 Terrestrial Chlorophyll Index (MTCI) Data from the European Space Agency (ESA) Envisat Satellite",
    "abstract": "Global and regional composite (Level 3) products of the MEdium Resolution Imaging Spectrometer (MERIS) Level 2 geophysical data are generated by the UK Multi-Mission Product Archive Facility (UK-MM-PAF)/Infoterra Ltd (Part of Astrium GEO-Information Services). One of these products: MERIS Terrestrial Chlorophyll Index (MTCI) data are available from NEODC. The products are in GEOTIFF format, on latitude-longitude geocoded grids, and are accompanied by an XML-metadata file and a JPEG browse image.",
    "keywords": "MERIS, MTCI, ESA, ENVISAT",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2013-12-10T02:41:35",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/7782/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13676/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13678/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13680/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13683/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13685/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13687/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/13689/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5041/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5042/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32219/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43087/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32226/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32220/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32221/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32222/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43078/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32218/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54736/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43079/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43080/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43081/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43082/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43083/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43084/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43085/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43086/?format=api"
    ]
}