46 lines
1.3 KiB
JavaScript
46 lines
1.3 KiB
JavaScript
import {
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NonceTxMiddleware, SignedTxMiddleware, Client,
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Contract, Address, LocalAddress, CryptoUtils
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} from 'loom-js'
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import { TileMapState, TileMapTx } from './proto/dots_pb'
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export default class ContractClient {
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constructor() {}
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async createContract() {
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const privateKey = CryptoUtils.generatePrivateKey()
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const publicKey = CryptoUtils.publicKeyFromPrivateKey(privateKey)
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const client = new Client(
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'default',
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'wss://draw.status.im/websocket',
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'wss://draw.status.im/queryws',
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)
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// required middleware
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client.txMiddleware = [
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new NonceTxMiddleware(publicKey, client),
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new SignedTxMiddleware(privateKey)
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]
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// address of the `TileChain` smart contract on the Loom DAppChain
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const contractAddr = await client.getContractAddressAsync('TileChain')
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this.callerAddress = new Address(client.chainId, LocalAddress.fromPublicKey(publicKey))
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this.contract = new Contract({
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contractAddr,
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callerAddr: this.callerAddress,
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client
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})
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}
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async setTileMapState(data) {
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const setTileMapState = new TileMapTx()
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setTileMapState.setData(data)
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await this.contract.callAsync('SetTileMapState', setTileMapState)
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}
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async getTileMapState() {
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return await this.contract.staticCallAsync('GetTileMapState', new TileMapState(), new TileMapState())
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}
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}
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