Keep getting `Error 422` upon setting switch state

[Ostromogilski]

Describe the bug
For some unknown for me reason, I'm keeping to receive Error 422 sending POST request to SmartThings API to start my vacuum cleaner. I tried the same request in Postman and it works as expected. But once I put the request into plugin config I get Error occurred setting state of switch: HTTP request returned with error code 422 upon triggering the switch

Version (output of npm list -g homebridge homebridge-http-switch)

• homebridge: 1.6.0
• homebridge-http-switch: 0.5.36

Configuration

{
    "accessories": [
        {
            "accessory": "HTTP-SWITCH",
            "name": "Samsung Powerbot",
            "switchType": "stateful",
            "onUrl": {
                "url": "https://api.smartthings.com/v1/devices/4076b244-****-****-****-3315d7085113/commands",
                "method": "POST",
                "body": {
                        "commands": [
                            {
                                "component": "main",
                                "capability": "robotCleanerCleaningMode",
                                "command": "setRobotCleanerCleaningMode",
                                "arguments": [
                                    "cleaning"
                                ]
                            }
                        ]
                    },
                "headers": {
                    "Authorization": "Bearer 22afc817-****-****-****-5fda2d54af7c",
                    "Content-Type": "application/json"
                }
            },
            "offUrl": {
                "url": "https://api.smartthings.com/v1/devices/4076b244-****-****-****-3315d7085113/commands",
                "method": "POST",
                "body": {
                        "commands": [
                            {
                                "component": "main",
                                "capability": "robotCleanerCleaningMode",
                                "command": "setRobotCleanerCleaningMode",
                                "arguments": [
                                    "homing"
                                ]
                            }
                        ]
                    },
                "headers": {
                    "Authorization": "Bearer 22afc817-****-****-****-5fda2d54af7cc",
                    "Content-Type": "application/json"
                }
            },
            "pullInterval": 5000,
            "statusUrl": {
                "url": "https://api.smartthings.com/v1/devices/4076b244-****-****-****-3315d7085113/components/main/capabilities/samsungce.robotCleanerOperatingState/status",
                "method": "GET",
                "headers": {
                    "Authorization": "Bearer 22afc817-****-****-****-5fda2d54af7c",
                    "Content-Type": "application/json"
                },
                "statusPattern": "true"
            }
        }
    ],
    "platforms": [
        {
            "platform": "homebridge-http-switch"
        }
    ]
}

Additional context

I would greatly appreciate any advise on this matter.

[Ostromogilski]

Postman request with the same body works as expected:

[Ostromogilski]

it seems that plugin is adding \ for every line break, that doesn't work with SmartThings API:

{\"commands\":[{\"component\":\"main\",\"capability\":\"robotCleanerCleaningMode\",\"command\":\"setRobotCleanerCleaningMode\",\"arguments\":[\"homing\"]}]}

Is it possible to avoid adding this behavior?

Working format should be like this:

{"commands":[{"component":"main","capability":"robotCleanerMovement","command":"setRobotCleanerMovement","arguments":["homing"]}]}

[Ostromogilski]

My working configuration for Samsung PowerBot :

{
    "accessories": [
        {
            "accessory": "HTTP-SWITCH",
            "name": "Samsung Powerbot",
            "switchType": "stateful",
            "debug": false,
            "onUrl": {
                "url": "https://api.smartthings.com/v1/devices/YOUR_DEVICE_ID/commands",
                "method": "POST",
                "body": {
                    "commands": [
                        {
                            "component": "main",
                            "capability": "robotCleanerMovement",
                            "command": "setRobotCleanerMovement",
                            "arguments": [
                                "cleaning"
                            ]
                        }
                    ]
                },
                "headers": {
                    "Authorization": "Bearer YOUR_TOKEN",
                    "Content-Type": "application/json"
                }
            },
            "offUrl": {
                "url": "https://api.smartthings.com/v1/devices/YOUR_DEVICE_ID/commands",
                "method": "POST",
                "body": {
                    "commands": [
                        {
                            "component": "main",
                            "capability": "robotCleanerMovement",
                            "command": "setRobotCleanerMovement",
                            "arguments": [
                                "homing"
                            ]
                        }
                    ]
                },
                "headers": {
                    "Authorization": "Bearer YOUR_TOKEN",
                    "Content-Type": "application/json"
                }
            },
            "pullInterval": 5000,
            "statusUrl": {
                "url": "https://api.smartthings.com/v1/devices/YOUR_DEVICE_ID/components/main/capabilities/samsungce.robotCleanerOperatingState/status",
                "method": "GET",
                "headers": {
                    "Authorization": "Bearer YOUR_TOKEN",
                    "Content-Type": "application/json"
                }
            },
            "statusPattern": ".*\"value\":\"cleaning\".*"
        }
    ],
    "platforms": [
        {
            "platform": "homebridge-http-switch"
        }
    ]
}