Multi tool use

Clash Royale CLAN TAG

how can I retrieve individual values from a multi value key in Swift 4/json dictionary?

There are many many examples of retrieving the value of a key, and I can do that. In this case, the key has multiple values. The key is "mining", followed by 6 values. The same key:value is repeated 30 times, with different values for the keys of course.

What I can't seem to solve is how to return the values. Especially the first one, 1532825277682891390, for example, which appears to be a sub-key with key/value pairs related to that.

The todo is: ["mining": {
1532825277682891390 = {
command = mining;
siteid = "Platform Mining";
ts = 1532825270557;
user1 = 73276;
value = 1;
};
1532826406100318457 = {
command = mining;
siteid = "Platform Mining";
ts = 1532826375712;
user1 = 73276;
value = 1;
};
1532827074955562013 = {
command = mining;
siteid = "Platform Mining";
ts = 1532827066645;
user1 = 73276;
value = 1;
};
153282775791322835 = {
command = mining;
siteid = "Platform Mining";
ts = 1532827753205;
user1 = 73276;
value = 1;
};

....
....
....
}


I can show the key:value for the "mining" key. There are only two keys in the dictionary, 'mining' and 'success' - I'm not worried about 'success', it usually returns '1'.

This is basically the code with a few examples and trial outputs, as I try out different things from other posts. I just can't get my head around this bit.
Do I need to put the dictionary into an array, and how do I do that, or can I just put each value into a var, so I can print them to a UITabDisplay?

func makeGetCall() {
// Set up the URL request
let todoEndpoint: String = "https://api.jsecoin.com/v1.7/mining/auth/"

let apiKey = "xxxxxxxxxxxxxxxxxxxxxxx"


guard let url = URL(string: todoEndpoint) else {
print("Error: cannot create URL")
return
}
var urlRequest = URLRequest(url: url)

urlRequest.setValue(apiKey, forHTTPHeaderField: "Authorization")
urlRequest.setValue("application/json", forHTTPHeaderField: "Content-Type")
// set up the session
let config = URLSessionConfiguration.default
let session = URLSession(configuration: config)

// make the request
let task = session.dataTask(with: urlRequest) {
(data, response, error) in
// check for any errors
guard error == nil else {
print("error calling GET on /todos/1")
print(error!)
return
}


// make sure we got data
guard let responseData = data else {
print("Error: did not receive data")
return
}
print("Got data: (responseData)")
// parse the result as JSON, since that's what the API provides
do {
guard let todo = try JSONSerialization.jsonObject(with: responseData, options: )
as? [String: Any] else {
print("error trying to convert data to JSON")
return
}
// now we have the todo
// let's just print it to prove we can access it
print("The todo is: " + todo.description)

// from this point on I"m experimenting ....

let dict = todo.description
print("The dict is: " + dict)

let keys = Array(todo.keys)
// prints ["mining", "success"]
print(keys)
/////////////////////////////////
if let alb = todo["mining"] {
// prints all the values for 'mining'.
// {
// 1532825277682891390 = {
// command = mining;
// siteid = "Platform Mining";
// ts = 1532825270557;
// user1 = 73276;
// value = 1;
// };
// ........ 30 entires
print(alb)
}
//======================
let index1 = todo.index(forKey: "mining")
let myMining = (todo[index1!].value)

// again prints all the mining values. Mining: {
// 1532825277682891390 = {
// command = mining;
// siteid = "Platform Mining";
// ts = 1532825270557;
// user1 = 73276;
// value = 1;
// };

print("Mining: (myMining)")

//============


1 Answer
1

You can do it in a similar way you have written for taking the keys of todo dictionary.

if let mining = todo["mining"] as? [String: Any] {
let miningKeys = Array(mining.keys)
// It will be like [1532825277682891390, 1532826406100318457]
}


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