stellar-sdk/com.soneso.stellar.sdk.rpc.requests/SimulateTransactionRequest

SimulateTransactionRequest

@Serializable
data class SimulateTransactionRequest(val transaction: String, val resourceConfig: SimulateTransactionRequest.ResourceConfig? = null, val authMode: SimulateTransactionRequest.AuthMode? = null, val useUpgradedAuth: Boolean? = null)

Request for JSON-RPC method simulateTransaction.

Simulates a transaction to preview its effects without submitting it to the network. This is essential for Soroban transactions to calculate resource requirements and auth entries.

See also

Constructors

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constructor(transaction: String, resourceConfig: SimulateTransactionRequest.ResourceConfig? = null, authMode: SimulateTransactionRequest.AuthMode? = null, useUpgradedAuth: Boolean? = null)

Types

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@Serializable
enum AuthMode : Enum<SimulateTransactionRequest.AuthMode>

Authorization mode for simulation.

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@Serializable
data class ResourceConfig(val instructionLeeway: Long? = null)

Resource configuration for simulation.

Properties

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val authMode: SimulateTransactionRequest.AuthMode?

Authorization mode for simulation. Controls how auth entries are handled.

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val resourceConfig: SimulateTransactionRequest.ResourceConfig?

Optional configuration for resource estimation.

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val transaction: String

Base64-encoded XDR TransactionEnvelope to simulate.

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val useUpgradedAuth: Boolean?

When true, requests Protocol-27 ADDRESS_V2 auth entries instead of legacy ADDRESS entries in recording modes. RPC servers below Protocol 27 ignore the flag and still return legacy ADDRESS entries.

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