Create NexusSmartChainTokenFactory.js

blockchain_integration/pi_network/pi-network-interoperability/bridge-contracts/nexus-smart-chain/NexusSmartChainTokenFactory.js

@@ -0,0 +1,55 @@
+const Web3 = require('web3');
+const Ethers = require('ethers');
+const { ApiPromise, WsProvider } = require('@polkadot/api');
+
+class NexusSmartChainTokenFactory {
+  constructor(factoryContractAddress, providerUrl) {
+    this.factoryContractAddress = factoryContractAddress;
+    this.web3 = new Web3(new Web3.providers.HttpProvider(providerUrl));
+    this.ethersProvider = new Ethers.providers.JsonRpcProvider(providerUrl);
+    this.api = new ApiPromise({
+      provider: new WsProvider(providerUrl)
+    });
+  }
+
+  async createToken(name, symbol, decimals, totalSupply) {
+    const txCount = await this.web3.eth.getTransactionCount(this.factoryContractAddress);
+    const tx = {
+      from: this.factoryContractAddress,
+      to: this.factoryContractAddress,
+      value: '0',
+      gas: '20000',
+      gasPrice: '20',
+            nonce: txCount,
+      data: `0x${this.encodeCreateToken(name, symbol, decimals, totalSupply)}`
+    };
+    const signedTx = await this.ethersProvider.signTransaction(tx, '0x1234567890abcdef');
+    await this.ethersProvider.sendTransaction(signedTx);
+  }
+
+  async getTokenAddress(name, symbol) {
+    return this.api.query.nexusSmartChainTokenFactory.tokenAddress(name, symbol);
+  }
+
+  encodeCreateToken(name, symbol, decimals, totalSupply) {
+    return this.web3.eth.abi.encodeFunctionCall({
+      name: 'createToken',
+      type: 'function',
+      inputs: [{
+        type: 'string',
+        name: 'name'
+      }, {
+        type: 'string',
+        name: 'symbol'
+      }, {
+        type: 'uint8',
+        name: 'decimals'
+      }, {
+        type: 'uint256',
+        name: 'totalSupply'
+      }]
+    }, [name, symbol, decimals, totalSupply]);
+  }
+}
+
+module.exports = NexusSmartChainTokenFactory;