Get a list of Identifier objects. Idenfifiers have a 1..*:1 mapping with Observations.

### Available end points:

- `/identifier/` - Will list all Results in the database
- `/identifier.json` - Will return all Results in json format
- `/identifier/<object_id>/` - Returns Results object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `url`
- `idenfifierType`

### How to use filters:



`/identifier/?url=mst`

`/identifier.json?identifierType=ceda_abbreviation`

GET /api/v2/identifiers/8980/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 8980,
    "relatedTo": {
        "ob_id": 19564,
        "uuid": "d323783d14b44400b5a7fb156023a65e",
        "short_code": "ob"
    },
    "url": "http://dx.doi.org/10.5285/6ac947db-fc01-4ae0-ac4a-6d6ff016aad1",
    "identifierType": "doi",
    "shortUrl": "http://doi.org/10/f3qnvf"
}