I used Klaytn smoothly and deployed many NFT’s on klaytn network on Opensea too.
But since tomorrow, truffle deploy is not working.
I tried to make new token based on KIP7
Here is my truffle-config.js
const config = require('./config');
const fs = require('fs');
const path = require("path");
const Caver = require('caver-js')
// const mnemonic = fs.readFileSync(".secret").toString().trim();
const accessKeyId = config.klaytn.access_id;
const secretAccessKey = config.klaytn.secret_key;
const HDWalletProvider = require("truffle-hdwallet-provider-klaytn");
const privateKey = config.wallet.baobab;
const cypressPrivateKey = config.wallet.cypress;
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.
//
// for ganache
development: {
host: "127.0.0.1", // Localhost (default: none)
port: 8545, // Standard Ethereum port (default: none)
network_id: "*", // Any network (default: none)
gas: 80000000
},
klaytn: {
provider: () => {
const pks = JSON.parse(fs.readFileSync(path.resolve(__dirname)+'/privateKeys.js'))
return new HDWalletProvider(pks, "http://localhost:8551", 0, pks.length)
},
network_id: '203', //Klaytn baobab testnet's network id
gas: '8500000',
gasPrice: null
},
kasBaobab: {
provider: () => {
const option = {
headers: [
{ name: 'Authorization', value: 'Basic ' + Buffer.from(accessKeyId + ':' + secretAccessKey).toString('base64') },
{ name: 'x-chain-id', value: '1001' }
],
keepAlive: false,
}
return new HDWalletProvider(privateKey, new Caver.providers.HttpProvider("https://node-api.klaytnapi.com/v1/klaytn", option))
},
network_id: '1001', //Klaytn baobab testnet's network id
gas: '8500000',
gasPrice:'25000000000'
},
kasCypress: {
provider: () => {
const option = {
headers: [
{ name: 'Authorization', value: 'Basic ' + Buffer.from(accessKeyId + ':' + secretAccessKey).toString('base64') },
{ name: 'x-chain-id', value: '8217' }
],
keepAlive: false,
}
return new HDWalletProvider(cypressPrivateKey, new Caver.providers.HttpProvider("https://node-api.klaytnapi.com/v1/klaytn", option))
},
network_id: '8217', //Klaytn baobab testnet's network id
gas: '8500000',
gasPrice:'25000000000'
},
baobab: {
provider: () => { return new HDWalletProvider(privateKey, "http://your.baobab.en:8551") },
network_id: '1001', //Klaytn baobab testnet's network id
gas: '8500000',
gasPrice: null
},
cypress: {
provider: () => { return new HDWalletProvider(privateKey, "http://your.cypress.en:8551") },
network_id: '8217', //Klaytn mainnet's network id
gas: '8500000',
gasPrice: null
}
// development: {
// host: "127.0.0.1", // Localhost (default: none)
// port: 8545, // Standard Ethereum port (default: none)
// network_id: "*", // Any network (default: none)
// },
// Another network with more advanced options...
// advanced: {
// port: 8777, // Custom port
// network_id: 1342, // Custom network
// gas: 8500000, // Gas sent with each transaction (default: ~6700000)
// gasPrice: 20000000000, // 20 gwei (in wei) (default: 100 gwei)
// from: <address>, // Account to send txs from (default: accounts[0])
// websockets: true // Enable EventEmitter interface for web3 (default: false)
// },
// Useful for deploying to a public network.
// NB: It's important to wrap the provider as a function.
// ropsten: {
// provider: () => new HDWalletProvider(mnemonic, `https://ropsten.infura.io/v3/YOUR-PROJECT-ID`),
// network_id: 3, // Ropsten's id
// gas: 5500000, // Ropsten has a lower block limit than mainnet
// confirmations: 2, // # of confs to wait between deployments. (default: 0)
// timeoutBlocks: 200, // # of blocks before a deployment times out (minimum/default: 50)
// skipDryRun: true // Skip dry run before migrations? (default: false for public nets )
// },
// Useful for private networks
// private: {
// provider: () => new HDWalletProvider(mnemonic, `https://network.io`),
// network_id: 2111, // This network is yours, in the cloud.
// production: true // Treats this network as if it was a public net. (default: false)
// }
},
// Set default mocha options here, use special reporters etc.
mocha: {
// timeout: 100000
},
// Configure your compilers
compilers: {
solc: {
version: "0.5.6", // 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: "constantinople"
}
}
}
}
And the response is this
Error: PollingBlockTracker - encountered an error while attempting to update latest block:
Error: Invalid JSON RPC response: “”
Usually this is a problem with the endpoint for API blockchain node.
Is there any solution or other alternative than this link,
https://node-api.klaytnapi.com/v1/klaytn ?