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/14148/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 14148,
    "uuid": "5806da02ef934a7c83d959bed50c2252",
    "title": "ESA Ozone Climate Change Initiative (Ozone CCI) Dataset Collection",
    "abstract": "Datasets of ozone products produced by the ozone project within the ESA Climate Change Initiative (CCI).  The project focuses on developing, delivering and characterizing a number of ozone ECV data products generated from European nadir, limb and occultation satellite sensors.\r\n\r\nThree main product lines have been developed:\r\n\r\nTotal ozone from nadir UV backscatter sensors:\r\nA time-series covering the period from 1995 until present generated by merging total ozone measurements from the GOME, SCIAMACHY, GOME-2 and OMI instruments. All European sensors are processed using the state-of-the-art direct-fitting algorithm developed for GOME (GDP5). \r\n\r\nOzone profiles from nadir UV backscatter sensors:\r\nA merged ozone profile data set from GOME, SCIAMACHY, OMI and GOME-2 instruments generated for a minimum of two contiguous years. Best elements from existing retrieval codes are combined in a single CCI algorithm applied to all sensors.\r\n\r\nOzone profiles from limb and occultation sensors:\r\nA merged ozone profile data set covering at least two contiguous years created from all limb/occultation sensors onboard of ENVISAT (GOMOS, MIPAS, SCIAMACHY) as well as from the Third Party Missions OSIRIS, SMR and ACE/FTS.",
    "keywords": "ESA, Ozone, CCI, ECV",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14149/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14150/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14151/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14152/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14153/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14154/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14155/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14156/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14157/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14158/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/14159/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/33000/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/33001/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54339/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54340/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54337/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54518/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105400/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105428/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105452/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54338/?format=api"
    ]
}