CounterContract

1pub contract CounterContract {
2
3    pub let CounterStoragePath: StoragePath
4    pub let CounterPublicPath: PublicPath
5    pub event AddedCount(currentCount: UInt64)
6
7
8    pub resource interface  HasCount {
9        pub fun currentCount(): UInt64
10    }
11
12    pub resource Counter: HasCount {
13
14        access(contract) var count: UInt64
15
16        init() {
17            self.count  = 0
18        }
19
20        pub fun plusOne(hash: String) {
21            self.count = self.count + 1
22        }
23
24        pub fun currentCount(): UInt64 {
25            return self.count
26        }
27
28    }
29
30
31    pub fun currentCount(): UInt64 {
32        let counter = self.account.getCapability<&{HasCount}>(self.CounterPublicPath)
33        let counterRef = counter.borrow()!
34        return counterRef.currentCount()
35    }
36
37    // initializer
38    //
39    init() {
40
41
42        self.CounterStoragePath = /storage/testCounterPrivatePath
43        self.CounterPublicPath = /public/testCounterPublicPath
44
45        let counter <- create Counter()
46        self.account.save(<-counter, to: self.CounterStoragePath)
47        self.account.link<&{HasCount}>(self.CounterPublicPath, target: self.CounterStoragePath)
48    }
49}
50