simulateTransaction RPC Method

Parameters

transaction

string

REQUIRED

The transaction to be simulated (serialized in base64)

Returns

result

object

An object containing the following fields:

transactionData

string

The data to use when submitting the simulated transaction. It is not present in the case of error

events

array

An array of the events emitted during the contract invocation

minResourceFee

string

The minimum resource fee to add when submitting the transaction

results

array

The result for the Host Function invocation which contains the following fields:

auth

string

An array of serialized base64 strings representing per-address authorizations recorded during the simulation of this Host Function call

xdr

string

The return value of the Host Function call

cost

object

An object which contains the information about the instructions used

cpuInsns

string

The total cpu instructions consumed by this transaction

memBytes

string

The total memory bytes allocated by this transaction

restorePreamble

object

If present, it signifies the detection of expired ledger entries that require restoration before submitting the InvokeHostFunction operation

latestLedger

string

The current latest closed ledger (LCL) observed by the node when this response was generated

Request

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curl --location 'https://docs-demo.stellar-mainnet.quiknode.pro/' \
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--header 'Content-Type: application/json' \
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--data '{
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    "jsonrpc": "2.0",
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    "id": 8675309,
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    "method": "simulateTransaction",
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    "params": {
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        "transaction": "YOUR_TRANSACTION"
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    }
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}'

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