buildUserOperationFromTx

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import { buildUserOperationFromTx } from "@aa-sdk/core";

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import type { RpcTransactionRequest } from "viem";
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import { smartAccountClient } from "./smartAccountClient";
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// [!code focus:99]
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// buildUserOperationFromTx converts a traditional Ethereum transaction and returns
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// the unsigned user operation struct after constructing the user operation struct
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// through the middleware pipeline
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const tx: RpcTransactionRequest = {
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from, // ignored
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to,
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data: encodeFunctionData({
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abi: ContractABI.abi,
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functionName: "func",
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args: [arg1, arg2, ...],
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}),
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};
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const uoStruct = await smartAccountClient.buildUserOperationFromTx(tx);
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// signUserOperation signs the above unsigned user operation struct built
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// using the account connected to the smart account client
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const request = await smartAccountClient.signUserOperation({ uoStruct });
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// You can use the BundlerAction `sendRawUserOperation` (packages/core/src/actions/bundler/sendRawUserOperation.ts)
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// to send the signed user operation request to the bundler, requesting the bundler to send the signed uo to the
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// EntryPoint contract pointed at by the entryPoint address parameter
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const entryPointAddress = client.account.getEntryPoint().address;
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const uoHash = await smartAccountClient.sendRawUserOperation({ request, entryPoint: entryPointAddress });