Switch chains

Get the current chain

To get the current network, you can use the eth_chainId request (with no params)

Usage

do {
    guard let provider = try await OFSDK.shared.getEthereumProvider(params: OFGetEthereumProviderParams()) else {
        print("Provider not available")
        return nil
    }

    let req = RPCRequest<[String]>(id: 1, jsonrpc: "2.0", method: "eth_chainId", params: [])

    provider.send(request: req) { (resp: Web3Response<String>) in
        if let chainIdHex: String = resp.result {
            let chainIdDec = Int(chainIdHex.dropFirst(2), radix: 16) ?? -1
            print("chainId (hex): \(chainIdHex), (dec): \(chainIdDec)")
        }
    }
} catch {
    print("Failed to get current network: \(error)")
}

Switch chain

To switch the smart wallet to a different network, send a wallet_switchEthereumChain JSON-RPC request to the wallet's EIP-1193 provider. In the request's params, specify your target chainId as a hexadecimal string.

Usage

do {
    guard let provider = try await OFSDK.shared.getEthereumProvider(params: OFGetEthereumProviderParams()) else {
        print("Provider not available")
        return nil
    }

    let req = RPCRequest<[[String: String]]>(id: 1, jsonrpc: "2.0", method: "wallet_switchEthereumChain", params: [["chainId": "0x5"]])

    provider.send(request: req) { (resp: Web3Response<String>) in
        if let chainIdHex: String = resp.result {
            let chainIdDec = Int(chainIdHex.dropFirst(2), radix: 16) ?? -1
            print("chainId (hex): \(chainIdHex), (dec): \(chainIdDec)")
        }
    }
} catch {
    print("Failed to switch chain: \(error)")
}

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