Why I cannot add data into Firebase in this way? - ios

Question

I am doing a project which is concerned about Firebase, I have tried to upload the data to the Firebase as the code in the tutorial from the Firebase website:
// An index to track Ada's memberships
{
"users": {
"alovelace": {
"name": "Ada Lovelace",
// Index Ada's groups in her profile
"groups": {
// the value here doesn't matter, just that the key exists
"techpioneers": true,
"womentechmakers": true
}
},
...
},
"groups": {
"techpioneers": {
"name": "Historical Tech Pioneers",
"members": {
"alovelace": true,
"ghopper": true,
"eclarke": true
}
},
...
}
}
and I follow this structure to write my own data structure, which looks like this:
func pushUser() {
let username = self.username
let userid = FIRAuth.auth()?.currentUser?.uid
let userInfo : [String : Any] = ["username" : username,
"userID" : userid,
"sggestedRoutes" : "",
"myTracedRoutes" : "",
"routes": {
"usualInfo" : true,
"calcuInfo" : true
}
]
let userRef = FIRDatabase.database().reference()
userRef.child("user").childByAutoId().setValue(userInfo)
}
in Swift3, but the debugger says the nested routes{} is not correct, I am quite confused about this, could anyone give me a hint on this?
Kind regards
After received the advice, I make some change on the code, but it is still not working on the Route part:(
func pushUser() {
let username = self.username
let userid = FIRAuth.auth()?.currentUser?.uid
let userInfo : [String : Any] =
["username" : username,
"userID" : userid,
"sggestedRoutes" : "",
"uploadedRoutes" : "",
"myTracedRoutes" : "",
["Routes":
["usualInfo" : true,
"calcuInfo" : true]
]
]
let userRef = FIRDatabase.database().reference()
userRef.child("user").childByAutoId().setValue(userInfo)
}

Answer 1

Try adding the routes as ["routes": ["usualInfo": true, "calcuInfo": true]]
Don't forget the correct closures for both children "user info" and "routes"