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/459/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 459,
    "uuid": "2d446fb05331419d934c7dd4f31878fd",
    "title": "NIMBUS-7 Total Ozone Mapping Spectrometer (TOMS)",
    "abstract": "TOMS was one of eight instruments designed to provide continuous, long-term monitoring of atmospheric, oceanic and surface parameters on a global basis throughout most of the 1980s. The Nimbus-7 TOMS instrument operated from 1st November 1978 to 5th May 1993.",
    "keywords": "",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/343/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/344/?format=api"
    ],
    "instrumentType": "instrument",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1298/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1297/?format=api"
    ]
}