Some notes about the usage of hyperion

README.md

Here I can write down some notes

hyperionnexteffect.py

import requests
import json

# settings
url = 'http://192.168.2.154:8090/json-rpc'
effects=["Knight rider", "Atomic swirl", "Rainbow swirl fast"]

# create a session
s = requests.Session()

# Switch to effect instance
switchjson = {'command': 'instance', 'subcommand': 'switchTo', 'instance': 1 }
i = s.post(url, json = switchjson)

# Find out the active effect
activeEffectsJson = {'command': 'serverinfo', 'tan': 1 }
si = s.post(url, json = activeEffectsJson )
info = si.json()

j = 0
if len(info['info']['activeEffects']) > 0 :
    # body of if statement
    activeEffectName = info['info']['activeEffects'][0]['name']
    i = effects.index(activeEffectName)
    j = i+1

    # end of list reached
    if j >= len(effects) :
        j = 0


# Change effect
effectjson = {'command': 'effect', 'effect': {'name': effects[j]}, 'priority': 50 }
e = s.post(url, json = effectjson)

print (e.text)

hyperionpreveffect.py

import requests
import json

# settings
url = 'http://192.168.2.154:8090/json-rpc'
effects=["Knight rider", "Atomic swirl", "Rainbow swirl fast"]

# create a session
s = requests.Session()

# Switch to effect instance
switchjson = {'command': 'instance', 'subcommand': 'switchTo', 'instance': 1 }
i = s.post(url, json = switchjson)

# Find out the active effect
activeEffectsJson = {'command': 'serverinfo', 'tan': 1 }
si = s.post(url, json = activeEffectsJson )
info = si.json()

j = 0
if len(info['info']['activeEffects']) > 0 :
    # body of if statement
    activeEffectName = info['info']['activeEffects'][0]['name']
    i = effects.index(activeEffectName)
    j = i-1

    # end of list reached
    if j < 0 :
        j = len(effects) -1


# Change effect
effectjson = {'command': 'effect', 'effect': {'name': effects[j]}, 'priority': 50 }
e = s.post(url, json = effectjson)

print (e.text)

hyperionswitch.sh

!/bin/bash

#instance=$( curl --header "Content-Type: application/json" --request POST --data '{"command":"serverinfo","tan":1}' http://192.168.2.154:8090/json-rpc | jq --raw-output '.instance' )
# Find out the status of the second instance for effects. If it is not running, start it. Otherwise switch back and turn it off
instance=$(curl --header "Content-Type: application/json" --request POST --data '{"command":"serverinfo","tan":1}' http://192.168.2.154:8090/json-rpc | jq --raw-output '.info.instance[] | select(.instance==1)>
if [ $instance = false ]; then
    curl --header "Content-Type: application/json" --request POST --data '{ "command": "componentstate", "componentstate": {"component": "ALL", "state": false} }' http://192.168.2.154:8090/json-rpc
    curl --header "Content-Type: application/json" --request POST --data '{ "command": "instance", "subcommand": "startInstance", "instance": 1 }' http://192.168.2.154:8090/json-rpc
    curl --header "Content-Type: application/json" --request POST --data '{ "command": "instance", "subcommand": "switchTo", "instance": 1 }' http://192.168.2.154:8090/json-rpc
else
    curl --header "Content-Type: application/json" --request POST --data '{ "command": "instance", "subcommand": "stopInstance", "instance": 1 }' http://192.168.2.154:8090/json-rpc
    curl --header "Content-Type: application/json" --request POST --data '{ "command": "instance", "subcommand": "switchTo", "instance": 0 }' http://192.168.2.154:8090/json-rpc
    curl --header "Content-Type: application/json" --request POST --data '{ "command": "componentstate", "componentstate": {"component": "ALL", "state": true} }' http://192.168.2.154:8090/json-rpc
    sleep 5s
    curl --header "Content-Type: application/json" --request POST --data '{ "command": "componentstate", "componentstate": {"component": "SMOOTHING", "state": true} }' http://192.168.2.154:8090/json-rpc
fi

The switch of the mode works fine, but for changing the instance and keep it, it is necessary to hold the session. It seems like the curl command creates a new session with every call. To solve this I have used python rather than shell scripting and it works to change the instance (and keep it) and then change effects.

top shows processes
getent passwd shows users from passwd file
sudo updateHyperionUser change hyperion service to the current user
systemctl status [email protected] show current service status

Good hints to allow access to the linux machine without entering password:
https://linuxize.com/post/how-to-setup-passwordless-ssh-login/

The hints here did the missing part to connect without password: https://forums.raspberrypi.com/viewtopic.php?t=226203