1  const HDWalletProvider = require("@truffle/hdwallet-provider");
 2  const Web3 = require('web3');
 3  
 4  require('dotenv').config();
 5  
 6  module.exports = {
 7  
 8    networks: {
 9      
10      kovan: {
11        provider: function() {
12          return new HDWalletProvider(
13            process.env.MNENOMIC,
14            "wss://kovan.infura.io/ws/v3/" + process.env.INFURA_API_KEY
15          )
16        },
17        network_id: 42,
18        networkCheckTimeout: 1000000,
19        timeoutBlocks: 200,
20        gasPrice: 1e9 // 1 gewi
21      },
22  
23      //for eth
24      /*development: {
25        host: "127.0.0.1",     // Localhost (default: none)
26        port: 7545,            // Standard Ethereum port (default: none)
27        network_id: "*",       // Any network (default: none)
28        gas: 8000000,
29      }*/
30  
31      development: {
32        provider: () => new Web3.providers.HttpProvider('http://127.0.0.1:9545/ext/bc/C/rpc'),
33        network_id: "*",
34        gas: 8000000,
35        gasPrice: 25000000000 // 25 nAVAX for now
36      },
37    
38      matic: {
39        provider: function() {
40          return new HDWalletProvider(
41            process.env.MNENOMIC,
42            "https://polygon-mainnet.infura.io/v3/" + process.env.INFURA_API_KEY
43          )
44        },
45        network_id: 137,
46        networkCheckTimeout: 1000000,
47        timeoutBlocks: 200,
48        gasPrice: 50e9 // 50 gewi
49      },
50  
51      mumbai: {
52        provider: function() {
53          return new HDWalletProvider(process.env.TESTNET_PRIVATE_KEY, "https://matic-mumbai.chainstacklabs.com/")
54        },
55        gas: 8000000,
56        network_id: 80001,
57        networkCheckTimeout: 1000000,
58        timeoutBlocks: 200,
59        from: "0xe977757dA5fd73Ca3D2bA6b7B544bdF42bb2CBf6",
60        gasPrice: 401e8 // 50 gewi
61      }
62    },
63  
64    compilers: {
65      solc: {
66        version: "0.6.0",
67        settings: {
68          optimizer: {
69            enabled: true,
70            runs: 200
71          }
72        }
73      }
74    },
75    /*
76    plugins: [
77      'truffle-plugin-verify',
78      'truffle-contract-size'
79    ],
80  
81    api_keys: {
82      etherscan: process.env.ETHERSCAN_KEY
83    }*/
84  };