Request Sync broken: Request contains an invalid argument.

according to https://developers.google.com/actions/smarthome/create-app#request-sync

curl -i -s -k -X POST -H "Content-Type: application/json" -d '{agent_user_id: "59c7a80d27e03a44449accb2"}' "https://homegraph.googleapis.com/v1/devices:requestSync?key=asd"

HTTP/1.1 400 Bad Request
Vary: X-Origin
Vary: Referer
Content-Type: application/json; charset=UTF-8
Date: Thu, 23 Nov 2017 14:37:11 GMT
Server: ESF
Cache-Control: private
X-XSS-Protection: 1; mode=block
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
Alt-Svc: hq=":443"; ma=2592000; quic=51303431; quic=51303339; quic=51303338; quic=51303337; quic=51303335,quic=":443"; ma=2592000; v="41,39,38,37,35"
Accept-Ranges: none
Vary: Origin,Accept-Encoding
Transfer-Encoding: chunked

{
  "error": {
    "code": 400,
    "message": "Request contains an invalid argument.",
    "status": "INVALID_ARGUMENT"
  }
}

Trying with invalid agent_user_id I got:

HTTP/1.1 404 Not Found
Vary: X-Origin
Vary: Referer
Content-Type: application/json; charset=UTF-8
Date: Thu, 23 Nov 2017 14:40:58 GMT
Server: ESF
Cache-Control: private
X-XSS-Protection: 1; mode=block
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
Alt-Svc: hq=":443"; ma=2592000; quic=51303431; quic=51303339; quic=51303338; quic=51303337; quic=51303335,quic=":443"; ma=2592000; v="41,39,38,37,35"
Accept-Ranges: none
Vary: Origin,Accept-Encoding
Transfer-Encoding: chunked

{
  "error": {
    "code": 404,
    "message": "Requested entity was not found.",
    "status": "NOT_FOUND"
  }
}

[daaru00]

Hi @asturel, I received the same error and I found the error was not about the request you made but the response received from your server about the SYNC request. For example, using the async parameter I no longer receive the error because the request will be made asynchronously after being queued:

POST https://homegraph.googleapis.com/v1/devices:requestSync
{
  "agentUserId": string,
  "async": boolean
}

here the documentation about it: https://developers.google.com/actions/reference/smarthome/rest/v1/devices/requestSync

[iifawzi]

Using async: true won’t solve the problem! it doesn’t return errors because the requests are handled asynchronously.

The error is usually because there’s a not allowed property in the request.