# SATU Developer SDKs

SATUCHAIN is EVM-compatible. Most standard EVM SDKs and developer tools work on SATUCHAIN by using the correct RPC endpoint and chain ID.<br>

***

### SATUCHAIN Testnet

Network Name: SATUCHAIN Testnet\
RPC URL: <https://rpc-testnet.satuchain.com>\
Chain ID: 17081945\
Currency Symbol: tSTU\
Block Explorer: <https://testnet.satuchain.com>

***

### JavaScript / TypeScript

#### ethers.js

Install:

```bash
npm i ethers
```

Read latest block:

```js
import { ethers } from "ethers";

const provider = new ethers.JsonRpcProvider("https://rpc-testnet.satuchain.com");
const blockNumber = await provider.getBlockNumber();

console.log("Latest block:", blockNumber);
```

#### viem

Install:

```bash
npm i viem
```

Read latest block:

```js
import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://rpc-testnet.satuchain.com"),
});

const blockNumber = await client.getBlockNumber();
console.log("Latest block:", blockNumber);
```

#### web3.js

Install:

```bash
npm i web3
```

Read latest block:

```js
import Web3 from "web3";

const web3 = new Web3("https://rpc-testnet.satuchain.com");
const blockNumber = await web3.eth.getBlockNumber();

console.log("Latest block:", blockNumber);
```

***

### React Wallet Tooling

#### wagmi + viem (recommended)

Install:

```bash
npm i wagmi viem
```

Optional (WalletConnect):

```bash
npm i @walletconnect/ethereum-provider
```

#### RainbowKit (Wallet UI)

Install:

```bash
npm i @rainbow-me/rainbowkit wagmi viem
```

***

### Smart Contract Tooling

#### Hardhat

Create project:

```bash
mkdir satuchain-hardhat && cd satuchain-hardhat
npm init -y
npm i -D hardhat
npx hardhat init
```

Add common plugins:

```bash
npm i -D @nomicfoundation/hardhat-toolbox dotenv
```

#### Foundry

Install:

```bash
curl -L https://foundry.paradigm.xyz | bash
foundryup
```

Verify:

```bash
forge --version
cast --version
```

#### Remix

Web IDE:\
<https://remix.ethereum.org/>

***

### Standard Contract Libraries

#### OpenZeppelin Contracts

Install:

```bash
npm i @openzeppelin/contracts
```

Usage:

```solidity
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
```

***

### Other Languages (Optional)

#### Python (web3.py)

Install:

```bash
pip install web3
```

Read latest block:

```python
from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://rpc-testnet.satuchain.com"))
print("Latest block:", w3.eth.block_number)
```

#### .NET (Nethereum)

Install:

```bash
dotnet add package Nethereum.Web3
```


---

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