Ethereum & EVM Integration

sdk.evm

EVM blockchain operations module for Ethereum and compatible chains.

createPublicClient

Create a public client for a specific chain.

try await sdk.evm.createPublicClient(chainId: Int) -> PublicClient

Parameters

chainId (Int) - Chain ID of the network

Returns

PublicClient - Public client for the specified chain

Example

let sdk = DynamicSDK.instance()

// Ethereum mainnet
let mainnetClient = try await sdk.evm.createPublicClient(chainId: 1)

// Base Sepolia testnet
let baseSepoliaClient = try await sdk.evm.createPublicClient(chainId: 84532)

// Get gas price
let gasPrice = try await baseSepoliaClient.getGasPrice()
print("Gas price: \(gasPrice.value) wei")

sendTransaction

Send an EVM transaction.

try await sdk.evm.sendTransaction(
    transaction: EthereumTransaction,
    wallet: BaseWallet
) -> String

Parameters

transaction (EthereumTransaction) - Transaction to send
wallet (BaseWallet) - Wallet to send from

Returns

String - Transaction hash

Example

let sdk = DynamicSDK.instance()

// Get gas price first
let client = try await sdk.evm.createPublicClient(chainId: 84532)
let gasPrice = try await client.getGasPrice()

// Create transaction
let transaction = EthereumTransaction(
    to: "0xRecipientAddress...",
    value: 1000000000000000,  // 0.001 ETH in Wei
    gasLimit: 21000,
    maxFeePerGas: Int(gasPrice.value * 2),
    maxPriorityFeePerGas: Int(gasPrice.value)
)

// Send transaction
if let wallet = sdk.wallets.userWallets.first {
    let txHash = try await sdk.evm.sendTransaction(
        transaction: transaction,
        wallet: wallet
    )
    print("Transaction hash: \(txHash)")
}

signTransaction

Sign a transaction without sending it.

try await sdk.evm.signTransaction(
    transaction: EthereumTransaction,
    wallet: BaseWallet
) -> String

Parameters

transaction (EthereumTransaction) - Transaction to sign
wallet (BaseWallet) - Wallet to sign with

Returns

String - Signed transaction

Example

let sdk = DynamicSDK.instance()

let transaction = EthereumTransaction(
    to: "0xRecipientAddress...",
    value: 1000000000000000,
    gasLimit: 21000,
    maxFeePerGas: 20000000000,
    maxPriorityFeePerGas: 1000000000
)

if let wallet = sdk.wallets.userWallets.first {
    let signedTx = try await sdk.evm.signTransaction(
        transaction: transaction,
        wallet: wallet
    )
    print("Signed transaction: \(signedTx)")
}

writeContract

Write to a smart contract.

try await sdk.evm.writeContract(
    wallet: BaseWallet,
    input: WriteContractInput
) -> String

Parameters

wallet (BaseWallet) - Wallet to send from
input (WriteContractInput) - Contract call input

Returns

String - Transaction hash

Example

let sdk = DynamicSDK.instance()

// ERC20 transfer
let input = WriteContractInput(
    contractAddress: "0xTokenContract...",
    functionName: "transfer",
    args: ["0xRecipient...", "1000000000000000000"],
    abi: Erc20.abi
)

if let wallet = sdk.wallets.userWallets.first {
    let txHash = try await sdk.evm.writeContract(wallet: wallet, input: input)
    print("Transaction hash: \(txHash)")
}

sdk.solana

Solana blockchain operations module.

createConnection

Create a connection to Solana.

try await sdk.solana.createConnection() -> SolanaConnection

Returns

SolanaConnection - Connection to Solana network

Example

let sdk = DynamicSDK.instance()

let connection = try await sdk.solana.createConnection()
let blockhash = try await connection.getLatestBlockhash()
print("Latest blockhash: \(blockhash)")

createSigner

Create a signer for a Solana wallet.

try await sdk.solana.createSigner(wallet: BaseWallet) -> SolanaSigner

Parameters

wallet (BaseWallet) - Solana wallet to create signer for

Returns

SolanaSigner - Signer for the wallet

Example

let sdk = DynamicSDK.instance()

let solanaWallets = sdk.wallets.userWallets.filter { $0.chain.uppercased() == "SOL" }

if let wallet = solanaWallets.first {
    let signer = try await sdk.solana.createSigner(wallet: wallet)
    
    // Sign a message
    let signature = try await signer.signMessage(message: "Hello, Solana!")
    print("Signature: \(signature)")
}

SolanaSigner

Signer for Solana operations.

signMessage

Sign a message.

try await signer.signMessage(message: String) -> String

signEncodedTransaction

Sign a base64-encoded transaction.

try await signer.signEncodedTransaction(base64Transaction: String) -> String

signAndSendEncodedTransaction

Sign and send a base64-encoded transaction.

try await signer.signAndSendEncodedTransaction(base64Transaction: String) -> String

Example

let sdk = DynamicSDK.instance()

let solanaWallets = sdk.wallets.userWallets.filter { $0.chain.uppercased() == "SOL" }

if let wallet = solanaWallets.first {
    let signer = try await sdk.solana.createSigner(wallet: wallet)
    
    // Sign and send transaction
    let signature = try await signer.signAndSendEncodedTransaction(
        base64Transaction: base64EncodedTx
    )
    print("Transaction signature: \(signature)")
}

sdk.networks

Available blockchain networks.

evm

Get available EVM networks.

let evmNetworks = sdk.networks.evm  // [GenericNetwork]

Example

let sdk = DynamicSDK.instance()

for network in sdk.networks.evm {
    print("Network: \(network.name)")
    print("Chain ID: \(network.chainId.value)")
}

solana

Get available Solana networks.

let solanaNetworks = sdk.networks.solana  // [GenericNetwork]

Example

let sdk = DynamicSDK.instance()

for network in sdk.networks.solana {
    print("Network: \(network.name)")
}

EthereumTransaction

Transaction object for EVM chains.

EthereumTransaction(
    to: String,
    value: Int,
    gasLimit: Int,
    maxFeePerGas: Int,
    maxPriorityFeePerGas: Int,
    data: String? = nil
)

Properties

Property	Type	Description
`to`	String	Recipient address
`value`	Int	Amount in Wei
`gasLimit`	Int	Gas limit
`maxFeePerGas`	Int	Maximum fee per gas
`maxPriorityFeePerGas`	Int	Priority fee per gas
`data`	String?	Contract call data (optional)

WriteContractInput

Input for smart contract interactions.

WriteContractInput(
    contractAddress: String,
    functionName: String,
    args: [Any],
    abi: String
)

Properties

Property	Type	Description
`contractAddress`	String	Contract address
`functionName`	String	Function to call
`args`	[Any]	Function arguments
`abi`	String	Contract ABI JSON

Complete EVM Example

import DynamicSDKSwift

let sdk = DynamicSDK.instance()

// Get EVM wallet
guard let wallet = sdk.wallets.userWallets.first(where: { 
    $0.chain.uppercased() == "EVM" 
}) else {
    print("No EVM wallet found")
    return
}

// Get gas price
let chainId = 84532 // Base Sepolia
let client = try await sdk.evm.createPublicClient(chainId: chainId)
let gasPrice = try await client.getGasPrice()

// Create and send transaction
let transaction = EthereumTransaction(
    to: "0xRecipient...",
    value: 10000000000000000,  // 0.01 ETH
    gasLimit: 21000,
    maxFeePerGas: Int(gasPrice.value * 2),
    maxPriorityFeePerGas: Int(gasPrice.value)
)

let txHash = try await sdk.evm.sendTransaction(
    transaction: transaction,
    wallet: wallet
)

print("Transaction sent: \(txHash)")

Complete Solana Example

import DynamicSDKSwift

let sdk = DynamicSDK.instance()

// Get Solana wallet
guard let wallet = sdk.wallets.userWallets.first(where: { 
    $0.chain.uppercased() == "SOL" 
}) else {
    print("No Solana wallet found")
    return
}

// Create connection and signer
let connection = try await sdk.solana.createConnection()
let signer = try await sdk.solana.createSigner(wallet: wallet)

// Get blockhash
let blockhash = try await connection.getLatestBlockhash()
print("Blockhash: \(blockhash)")

// Sign a message
let signature = try await signer.signMessage(message: "Hello from Solana!")
print("Signature: \(signature)")

Getting Started

Authentication

Wallets

Blockchain

SDK Reference

​sdk.evm

​createPublicClient

​Parameters

​Returns

​Example

​sendTransaction

​Parameters

​Returns

​Example

​signTransaction

​Parameters

​Returns

​Example

​writeContract

​Parameters

​Returns

​Example

​sdk.solana

​createConnection

​Returns

​Example

​createSigner

​Parameters

​Returns

​Example

​SolanaSigner

​signMessage

​signEncodedTransaction

​signAndSendEncodedTransaction

​Example

​sdk.networks

​evm

​Example

​solana

​Example

​EthereumTransaction

​Properties

​WriteContractInput

​Properties

​Complete EVM Example

​Complete Solana Example

sdk.evm

createPublicClient

Parameters

Returns

Example

sendTransaction

Parameters

Returns

Example

signTransaction

Parameters

Returns

Example

writeContract

Parameters

Returns

Example

sdk.solana

createConnection

Returns

Example

createSigner

Parameters

Returns

Example

SolanaSigner

signMessage

signEncodedTransaction

signAndSendEncodedTransaction

Example

sdk.networks

evm

Example

solana

Example

EthereumTransaction

Properties

WriteContractInput

Properties

Complete EVM Example

Complete Solana Example