api/account/login

Logs a user into the system by validating username and password against the auth database.

Sample response:

    "status":"200 OK",
    "code":"/api/status/ok",
    "messages": [{
      "username": "$username$", 
      "message": "Login succeeded", 
      "code":"/api/status/ok/account/login"
      "domain": "freebase.com"
    }]
}

Sample error response:

    "status": "400 Bad request", 
    "code": "/api/status/error", 
    "messages": [
      {
        "info": {
          "field": "username", 
          "value": null
        }, 
        "message": "Missing value", 
        "code": "/api/status/error/input/invalid"
      }, 
      {
        "info": {
          "field": "password", 
          "value": null
        }, 
        "message": "Missing value", 
        "code": "/api/status/error/input/invalid"
      }
    ]  
}