send own data to signal-k

[Tommaso Speroni]

Hello everyone! 

I'm quite new here and I'm trying to send my own data to signal-k server.

For example when i receive data from a sensor (temperature or humidity) I'm able to send it using the data fiddler:

ex:

{
  "context": "vessels.urn:mrn:signalk:uuid:f615af09-56c1-4325-9390-4b22641fd06b",
  "updates": [
    {
      "timestamp": "2022-01-07T07:18:44Z",
      "values": [
        {
          "path": "environment.humidity",
          "value": 70
        }
      ]
    }
  ]
}

I see the data in the stream: 

http://localhost:8080/signalk/v1/api/vessels/self/

Now from a Python script I would like to do the same but reading the documentation is not clear to me how to send Delta via HTTP.

When I try to send via. HTTP with a PUT: 

this is the response

Thank you very much!

Tommaso

[Teppo Kurki]

https://github.com/SignalK/signalk-server/wiki/FAQ:-Frequently-Asked-Questions

--
You received this message because you are subscribed to the Google Groups "Signal K" group.
To unsubscribe from this group and stop receiving emails from it, send an email to signalk+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/signalk/306d3ef8-1575-445c-91eb-c49447fe5a06n%40googlegroups.com.

[Tommaso Speroni]

Thank you very much for your answer. 

But is not clear to me why doing a PUT

http://172.16.0.50:3000/signalk/v1/api/vessels/self/steering/autopilot/state

with 

{

"value": "auto"

}

I receive a 405:

{

"state": "COMPLETED",

"requestId": "622a7e3b-e263-4581-a552-3b55bf1fb80a",

"statusCode": 405,

"message": "PUT not supported for steering.autopilot.state",

"href": "/signalk/v1/requests/622a7e3b-e263-4581-a552-3b55bf1fb80a",

"user": "1234-45653-3434533"

}

Many thanks

[Jean Vasic]

Here is a Python3 example:

import asyncio
from websockets import connect

async def hello(uri):
    async with connect(uri) as websocket:
        message = await websocket.recv()
        print(message)

        login_msg ='{"requestId": "1234-45653-343454","login": {"username": "azerty","password": "uiop"}}'
        print(login_msg)
        await websocket.send(login_msg)
        print("login sent")
        message = await websocket.recv()
        print(message)

        beacon_msg = '{"context": "atons.urn:mrn:imo:mmsi:123456789","updates": [{"values": [{"path": "navigation.position.longitude","value": 14.99},{"path": "navigation.position.latitude","value": 31.99},{"path": "name","value": "BeaconPy"},{"path": "virtual","value": "true"},{"path": "atonType.name","value": "BLE Beacon Py"}]}]}'

        await websocket.send(beacon_msg)
        print("beacon sent:",beacon_msg)
        message = await websocket.recv()
        print(message)

asyncio.run(hello("ws://belpugapi:3000/signalk/v1/stream?subscribe=none"))