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/13062/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 13062,
    "uuid": "aa3990d2df1345e08292ad6ef1f1cc3e",
    "title": "Paroscientific Met 4",
    "abstract": "Meteorological sensor that records pressure and temperature. The measurement frequency of this sensor is 1Hz, and the data held at CEDA has a frequency of 5 minutes. \r\n\r\nFor the purposes of the Snowdon Mountain Railway GNSS experiment, they were mounted at two co-located static GNSS reference stations at the base of the railway at Llanberis (SNLB) and at the summit (SNSU).\r\n\r\nThis instrument was operated by Newcastle University.",
    "keywords": "ncl-met-4",
    "identifier_set": [],
    "instrumentType": "met_sensor",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49999/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49998/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/141014/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/141015/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49997/?format=api"
    ]
}