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truffle-config.js
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truffle-config.js
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const HDWalletProvider = require("truffle-hdwallet-provider");
const INFURA_API_KEY = process.env.INFURA_API_KEY;
const MNEMONIC = process.env.MNEMONIC;
const ropstenProvider = MNEMONIC
? new HDWalletProvider(
MNEMONIC,
`https://ropsten.infura.io/v3/${INFURA_API_KEY}`
)
: null;
module.exports = {
/**
* Networks define how you connect to your ethereum client and let you set the
* defaults web3 uses to send transactions. If you don't specify one truffle
* will spin up a development blockchain for you on port 9545 when you
* run `develop` or `test`. You can ask a truffle command to use a specific
* network from the command line, e.g
*
* $ truffle test --network <network-name>
*/
networks: {
// Useful for testing. The `development` name is special - truffle uses it by default
// if it's defined here and no other network is specified at the command line.
// You should run a client (like ganache-cli, geth or parity) in a separate terminal
// tab if you use this network and you must also set the `host`, `port` and `network_id`
// options below to some value.
//
development: {
host: "127.0.0.1", // Localhost (default: none)
port: 8545, // Standard Ethereum port (default: none)
network_id: "*" // Any network (default: none)
},
ropsten: {
provider: ropstenProvider,
gas: 8000000,
gasPrice: 30000000000,
from: "0x9D20420646c708Eb17bA18E281565DC1DeA7E71B",
network_id: 3,
skipDryRun: false
}
},
// Set default mocha options here, use special reporters etc.
mocha: {
// timeout: 100000
},
// Configure your compilers
compilers: {
solc: {
version: "0.5.9", // Fetch exact version from solc-bin (default: truffle's version)
// docker: true, // Use "0.5.1" you've installed locally with docker (default: false)
settings: {
// See the solidity docs for advice about optimization and evmVersion
optimizer: {
enabled: true,
runs: 200
}
// evmVersion: "petersburg"
}
}
}
};