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/5262/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 5262,
    "uuid": "76d78a53a7a142e4a452b67385da1963",
    "title": "York/UEA/UFAM: Whole Air Sample bottles (WAS)",
    "abstract": "Seven cases holding a total of 64 stainless steel sample bottles can be stored in the aft cargo hold. The bottles are filled with air taken in flight from the air sample pipe and stored for post-flight analysis (usually by gas chromatography) in a labaoratory.",
    "keywords": "",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3448/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3449/?format=api"
    ],
    "instrumentType": "sampler",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23295/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23294/?format=api"
    ]
}