> For the complete documentation index, see [llms.txt](https://docs.bloxchain.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bloxchain.app/developers/sdk-examples.md).

# SDK examples

Curated snippets to get started. Full samples: [Examples basic](/protocol/examples-basic.md) (imported).

## Install

```bash
npm install @bloxchain/sdk @bloxchain/contracts viem
```

## Clients (viem)

```typescript
import { createPublicClient, createWalletClient, http } from 'viem';
import { sepolia } from 'viem/chains';
import { privateKeyToAccount } from 'viem/accounts';

const transport = http(process.env.RPC_URL!);
const chain = sepolia;
const accountAddress = process.env.ACCOUNT_ADDRESS as `0x${string}`;

export const publicClient = createPublicClient({ chain, transport });

const account = privateKeyToAccount(process.env.PRIVATE_KEY as `0x${string}`);
export const walletClient = createWalletClient({ account, chain, transport });
```

## Read contract owner (SecureOwnable)

```typescript
import { SecureOwnable } from '@bloxchain/sdk';

const ownable = new SecureOwnable(
  publicClient,
  walletClient,
  accountAddress,
  sepolia,
);

const owner = await ownable.getOwner();
console.log('Owner:', owner);
```

## Submit a transaction and wait

```typescript
const hash = await walletClient.writeContract({
  address: accountAddress,
  abi: ownable.abi,
  functionName: 'yourGovernedFunction',
  args: [/* per operation schema */],
  chain: sepolia,
  account: walletClient.account!,
});

const receipt = await publicClient.waitForTransactionReceipt({ hash });
if (receipt.status !== 'success') {
  throw new Error(`Transaction failed: ${hash}`);
}
```

Use registered operations and RBAC permissions from your deployment—see [Core patterns](/developers/sdk-core-patterns.md) and [Protocol getting started](/protocol/getting-started.md).

## Environment template

```bash
RPC_URL=https://ethereum-sepolia-rpc.publicnode.com
PRIVATE_KEY=0x...
ACCOUNT_ADDRESS=0x...
```

Pin `@bloxchain/sdk` and `@bloxchain/contracts` to the same [Protocol release](https://github.com/PracticalParticle/Bloxchain-Protocol/releases).

## Sanity scripts

Runnable integration references: `scripts/sanity-sdk/` in the [Bloxchain-Protocol](https://github.com/PracticalParticle/Bloxchain-Protocol) repository.

## Next steps

* [Quickstart](/getting-started/quickstart.md)
* [Core patterns](/developers/sdk-core-patterns.md)
* [API reference](/protocol/api-reference.md)


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