Refresh device or user token
Use this endpoint to refresh device token or user token acquired from the public API /login call. Endpoint is available at /token relative path.
Parameters:
- client_id: unique client ID. Use "api" value for user token acquired from the public API
- client_secret: API key
- grant_type: refresh_token
- refresh_token: the refresh token
Return value:
The Error object if error occurred, otherwise Token JSON object with the following structure:
{
    "token_type": "Bearer",
    "expires_in": NNN,
    "access_token": "xxx",
    "refresh_token": "yyy"
}- token_type – Always “Bearer”. 
- expires_in – Access token expiration time in seconds. 
- access_token – A device access token. 
- refresh_token – The new refresh token. 
