smom-dbis-138/sdk/INTEGRATION_SUMMARY.md

Tatum SDK Integration Summary

Overview

This integration adds Tatum SDK support for ChainID 138 (DeFi Oracle Meta Mainnet), allowing developers to interact with the network using Tatum's SDK interface while using custom RPC endpoints.

What Was Added

1. SDK Configuration (src/config.ts)

• ChainID 138 configuration
• Default RPC endpoint configuration
• Network configuration object
• TypeScript types for configuration

2. Tatum Client (src/tatum-client.ts)

• initTatumSDK(): Initialize Tatum SDK with custom RPC URL
• initTatumSDKWithNodes(): Initialize with explicit node configuration
• verifyConnection(): Verify connectivity and chain ID

3. Examples

• Basic Usage (src/examples/basic-usage.ts): Connect and query chain data
• Send Transaction (src/examples/send-transaction.ts): Send transactions with proper chainId
• Deploy Contract (src/examples/deploy-contract.ts): Deploy and interact with contracts

4. Testing

• Connection Test (src/test-connection.ts): Test RPC connectivity and chain ID
• Smoke Test (src/smoke-test.ts): Comprehensive test suite

5. Scripts

• Setup Script (scripts/setup.sh): Automated setup
• RPC Test (scripts/test-rpc.sh): Bash script to test RPC endpoint

6. Documentation

• README.md: SDK usage guide
• TATUM_SDK.md: Comprehensive integration guide
• env.example: Environment variable template

Key Features

Custom RPC Support

• Point Tatum SDK at your own RPC endpoints
• All JSON-RPC traffic goes to your ChainID 138 nodes
• No dependency on Tatum's hosted nodes

ChainID 138 Integration

• Proper chainId configuration (138 / 0x8a)
• EIP-155 transaction signing
• Chain ID verification

Type Safety

• TypeScript types for all configurations
• Type-safe RPC calls
• Type-safe transaction signing

Examples and Tests

• Complete working examples
• Comprehensive test suite
• Easy-to-follow documentation

Limitations

As per Tatum documentation:

• Only RPC calls work: Tatum's cloud services (Notifications, Blockchain Data) won't work
• No indexer support: Private chains don't have indexer support
• Raw JSON-RPC only: Only standard JSON-RPC calls are available

Usage

Quick Start

cd sdk
npm install
cp env.example .env
# Edit .env with your RPC endpoint
npm run test

Programmatic Usage

import { initTatumSDK, verifyConnection } from './tatum-client';

const tatum = await initTatumSDK({
  rpcUrl: 'https://rpc.d-bis.org',
});

const info = await verifyConnection(tatum);
console.log('Chain ID:', info.chainId); // 138

Send Transaction

import { ethers } from 'ethers';
import { CHAIN_ID, DEFAULT_RPC_URL } from './config';

const provider = new ethers.JsonRpcProvider(DEFAULT_RPC_URL, {
  chainId: CHAIN_ID,
  name: 'defi-oracle-mainnet',
});

const wallet = new ethers.Wallet(PRIVATE_KEY, provider);
const tx = await wallet.sendTransaction({
  to: '0x...',
  value: ethers.parseEther('0.01'),
  chainId: CHAIN_ID, // Must be 138
});

Verification Checklist

• RPC endpoint accessible
• ChainID 138 configured
• Tatum SDK initialization working
• Chain ID verification working
• Transaction signing with chainId: 138
• Examples working
• Tests passing
• Documentation complete

Files Structure

sdk/
├── src/
│   ├── config.ts              # Configuration
│   ├── tatum-client.ts        # Tatum SDK client
│   ├── index.ts               # Main exports
│   ├── test-connection.ts     # Connection test
│   ├── smoke-test.ts          # Smoke test
│   └── examples/
│       ├── basic-usage.ts     # Basic example
│       ├── send-transaction.ts # Transaction example
│       └── deploy-contract.ts # Contract example
├── scripts/
│   ├── setup.sh               # Setup script
│   └── test-rpc.sh            # RPC test script
├── package.json               # Dependencies
├── tsconfig.json              # TypeScript config
├── env.example                # Environment template
└── README.md                  # Documentation

Next Steps

1. Deploy RPC Nodes: Ensure RPC nodes are deployed and accessible
2. Configure Endpoints: Update .env with your RPC endpoints
3. Test Connection: Run npm run test to verify connectivity
4. Run Examples: Try the provided examples
5. Integrate: Use the SDK in your applications

References

• Tatum SDK Documentation
• Ethereum JSON-RPC API
• EIP-155: Simple replay attack protection