P82epQxE

1// SDK & Node setup
2const { Universal: Ae, MemoryAccount, Node } = require('@aeternity/aepp-sdk')
3
4const privkey1 = '9096c6312d24e9768fa13e4e1267f35c370447001ce97cdf809808ddd7d4fd7f70137ec5930787af365fba4ab89c280bb97e2906befa75a7b2b0f8d3c62b1aac'
5const pubkey1 = 'ak_rMqRduEE8LiWTKsixtXUYui764HW87DJ2xZNmaGpqWz1o59DH'
6
7const privkey2 = 'ccc44a65df014555da2bda6bdb6fb72de8e8cb11cac89ff7457b1981a793a16183d55a5093ea6c66685653bf006d8964a14a6c4e1c7ad39e6a95a63afdf9ffe4'
8const pubkey2 = 'ak_214WSEqTB1MbkEKmS9Sh5V4fqHY9b6Xterex15JQTdyiDLdXYW'
9
10
11
12// accounts that will be used for the transactions
13const acc1 = MemoryAccount({ keypair: { secretKey: privkey1, publicKey: pubkey1 } });
14const acc2 = MemoryAccount({ keypair: { secretKey: privkey2, publicKey: pubkey2 } });
15
16
17
18// a reference to the aeternity blockchain
19var Chain;
20
21// instantiate a connection to the aeternity blockchain
22const main = async () => {
23  const node1 = await Node({ url: 'https://testnet.aeternity.io'})
24  // const node2 = ...
25
26    Chain = await Ae({
27      // Define Node
28      nodes: [
29        { name: 'someNode', instance: node1 },
30        // mode2
31      ],
32      compilerUrl: 'https://latest.compiler.aepps.com',
33      accounts: [
34        acc1,
35        acc2
36      ],
37      address: pubkey1
38
39    })
40    const height = await Chain.height()
41    console.log('Connected to Testnet Node! Current Block:', height)
42
43  
44
45
46
47// CONTRACT DEPLOYMENT
48
49// the code of your contract - watch out for correct indentations !
50    const code = 
51    `
52contract SimpleToken =
53
54    record state = {
55        total_supply : int,
56        name : string,
57        balances : map(address, int)
58        }
59    
60    entrypoint init(initial_balance : int, name : string) =
61     { name         = name,
62       total_supply = initial_balance,
63       balances     = {[Call.caller] = initial_balance}
64      }
65
66    entrypoint name() : string =
67        state.name
68
69    entrypoint balance(account : address) : int = 
70        state.balances[account = 0]
71
72
73    stateful entrypoint transfer(recipient : address, value : int) =
74        require(value >= 0, "NON_NEGATIVE_VALUE_REQUIRED")
75        require(balance(Call.caller) >= value, "Not enough funds")
76
77        put(state{ balances[Call.caller] = state.balances[Call.caller] - value } )
78        put(state{ balances[recipient] = state.balances[recipient = 0] + value })
79        true
80`
81
82    // create a contract instance
83   const SimpleToken = await Chain.getContractInstance(code);
84
85    // Deploy the contract
86    try {
87      console.log("Deploying contract....")
88      console.log("Using account for deployment: ", Chain.addresses()[0]);
89      await SimpleToken.methods.init(1337,'SimpleToken');
90      console.log("Contract deployed successfully!")
91      console.log("Contract address: ", SimpleToken.deployInfo.address)
92      console.log("Transaction ID: ", SimpleToken.deployInfo.transaction)
93      console.log("\n \n")  
94    } catch(e){
95      console.log("Something went wrong, did you set up the SDK properly?");
96      console.log("Deployment failed: ", e)
97    }
98
99      
100      
101//      await new Promise(resolve => setTimeout(resolve, 4000));
102
103
104
105    // CONTRACT FUNCTION CALL
106
107    try{
108      let callresult = await SimpleToken.methods.transfer('ak_214WSEqTB1MbkEKmS9Sh5V4fqHY9b6Xterex15JQTdyiDLdXYW', 42);
109      //var myContract = SimpleToken.methods;
110      console.log("Transaction ID: ", callresult.hash);
111      console.log("Advice: log the full callResult object for more useful information!")
112      console.log("Function call returned: ", callresult.decodedResult);
113    } catch (e){
114      console.log("Calling your function errored: ", e)
115    }
116      } 
117 main();
118 
119