motoko_array_append.mo

import Array "mo:base/Array";
import Iter "mo:base/Iter";
import Prim "mo:prim";

actor {

    type CanisterMemoryInfo = {
        rts_version : Text;
        rts_memory_size: Nat;
        rts_heap_size: Nat;
        rts_total_allocation: Nat;
        rts_reclaimed : Nat;
        rts_max_live_size : Nat;
    };

    var store: [Nat] = [];

    public query func getSize() : async Nat {
        store.size()
    };

    public func appendData(count: Nat) : async (Nat, CanisterMemoryInfo) {
        Iter.iterate<Nat>(Iter.range(1, count), func(x, _index) {
            store := Array.append<Nat>(store, Array.make(x));
        });
        (store.size(), await getCanisterMemoryInfo())
    };

    public query func getCanisterMemoryInfo() : async CanisterMemoryInfo {
        return {
            rts_version = Prim.rts_version();
            rts_memory_size = Prim.rts_memory_size();
            rts_heap_size = Prim.rts_heap_size();
            rts_total_allocation = Prim.rts_total_allocation();
            rts_reclaimed = Prim.rts_reclaimed();
            rts_max_live_size = Prim.rts_max_live_size();
        };
    };

}