# deploy.js

**Published by:** [90ba](https://paragraph.com/@eaglebird/)
**Published on:** 2023-03-14
**URL:** https://paragraph.com/@eaglebird/deploy-js

## Content

import { CodePromise, Abi, ContractPromise } from '@polkadot/api-contract'; import { ApiPromise, WsProvider, Keyring} from '@polkadot/api'; // import .contract file as json string import { json } from "./abi.js" import { mnemonicToMiniSecret, naclKeypairFromSeed, } from "@polkadot/util-crypto"; try { let address; // variable for storing the address of the deployed contract // API creation for connection to the chain const wsProvider = new WsProvider('wss://wss-testnet.5ire.network/'); const api = await ApiPromise.create({ provider: wsProvider }); // convert json into usable contract ABI let contractAbi = new Abi(json, api?.registry?.getChainProperties()); // instantiating wasm blob on the blockchain const code = new CodePromise(api, json, json.source.wasm); // gas limit for deployment const gasLimit = 100000n * 1000000n // endoement const value = 100n * 1000n // adding fire account for paying the gas fee const PHRASE = ''; const seedUser = mnemonicToMiniSecret(PHRASE); const keyring = new Keyring({ type: "ed25519" }); const userKeyring = keyring.addFromPair(naclKeypairFromSeed(seedUser)); // parameters for constructor function inside the contract let params = []; params.push(userKeyring.publicKey); params.push(userKeyring.publicKey); let constructorIndex = 0; try { // upload wasm blob let transferMethod = code && contractAbi?.constructors[constructorIndex]?.method && value ? code.tx[contractAbi.constructors[constructorIndex].method]({ gasLimit: gasLimit, storageDepositLimit: null, value: value }, ...params) : null; // code deploy const unsub = await transferMethod.signAndSend(userKeyring, async (response) => { if (response.status.isInBlock || response.status.isFinalized) { address = response.contract.address.toString(); console.log("address ====== ", address); unsub(); } }); } catch (e) { console.log("error catch", e); } } catch(err){ console.log("error",err.toString()) }

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