Get a list of Instrument objects. Instruments have a 1:1 mapping with Observations.

### Available end points:

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

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `title`
- `uuid`
- `keywords`
- `instrumentType`

### How to use filters:

- `/instruments/?title__startwith!=Instrument.title: DETAILS NEEDED`
- `/instruments/?uuid=c7fa005e2095425392b18adbd7b40617`
- `/instruments.json?instrumentType=radiometer`

GET /api/v2/instruments/20345/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 20345,
    "uuid": "b1f5d0b1910f4aa0943f009886940507",
    "title": "SAFIRE Falcon20 Core Instrument suite",
    "abstract": "SAFIRE (Service des Avions Francais Instrumentés pour la Recherche en Environnement) operated core instruments on board the SAFIRE-Falcon20 aircraft. Includes Inertial Reference/Navigation System,  Incident flow vector probe, Dew/Frost-point hygrometer (Buck and General Eastern), and AVAPS Dropsonde. Other optional instruments may be operated. Used in EUFAR flights.",
    "keywords": "fs-core EUFAR",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/9127/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/9128/?format=api"
    ],
    "instrumentType": "instrument",
    "subInstrument": [],
    "responsiblepartyinfo_set": []
}