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Requests to Coinbase Wallet can be made by calling the makeRequest function provided by the SDK. This function also accepts a list of actions. 
cbwallet.makeRequest(
    Request(actions: [
        Action(jsonRpc: .eth_signTypedData_v3(
            address: "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826",
            message: Data()))
    ])
) { result in
    self.log("\(result)")
}

​
Batch requests

The client supports sending multiple actions as a single batch request. For example, the code below will make requests for a user account and to switch chains: 
cbwallet.makeRequest(
    Request(actions: [
        Action(jsonRpc: .eth_requestAccounts),
        Action(jsonRpc: .wallet_switchEthereumChain(chainId: "1666600000"))
    ])
) { result in
    self.log("\(result)")
}
An example request is provided in our sample application.