When calling: https://api.testnet.aptoslabs.com/v1/transactions/simulate, prompt: invalid_input

[Dong-Jianguo]

Discord user ID

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Describe your question in detail.

I want to use Aptos's api to simulate transactions, where the transaction type I use is: script_payload.
This is the API I requested: https://api.testnet.aptoslabs.com/v1/transactions/simulate?estimate_gas_unit_price=true&estimate_max_gas_amount=true

Here are my parameters:
{
"sender": "0xc3196b462bf1ce2da0ea951254dacbb04a018a41366fb52325687342a35f2499",
"sequence_number": "175",
"max_gas_amount": "400000",
"gas_unit_price": "100",
"expiration_timestamp_secs": "1742586758",
"payload": {
"code": {
"bytecode": "0xa11ceb0b0700000a06010006020604030a0c05160b072140086160000 0010102020003070002040001000101050201000103060c0a02080000010 a0206737472696e6703617070066f7261636c6506537472696e671666756 c66696c6c5f6f7261636c655f726571756573740f6f7261636c655f72657 3706f6e736500000000000000000000000000000000000000000000000000000000000011ea0ea8bf782d479bb571f94317da3020849c5ed7274 81ad6a5c6ba49787f31c468a49e08a8993fc2ea78f1abe35430067d489e7 f29dfc7b843335405897427d000001070b000a010b0211000b01110102",
"abi": { "view": false, "return": [], "entry": true, "name": "main", "visibility": "public", "is_entry": true, "is_view": false, "generic_type_params": [], "params": [ "&signer", "vector", "0x1::string::String" ] } }, "type": "script_payload", "function": "0x468a49e08a8993fc2ea78f1abe35430067d489e7f29dfc7b843335405897427d::oracle::fulfill_oracle_request", "type_arguments": [], "arguments": [ "ec5e0d005b814fd237876e237fb44eaccf6767fc129552bbd27981d38367cdcb", "djgtest222222" ] }, "signature": { "public_key": "0x238293c76362aa01d6e38d43edcbff5fba7ec9b54a82fa863a322a1d89c8e2ba", "sender": null, "signature": "0x00000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000", "type": "ed25519_signature" } } This is the response: { "message": "Failed to create SignedTransaction from SubmitTransactionRequest: Failed to parse transaction payload: invalid transaction argument: Struct(Runtime([Vector([U8(100), U8(106), U8(103), U8(116), U8(101), U8(115), U8(116), U8(50), U8(50), U8(50), U8(50), U8(50), U8(50)])]))", "error_code": "invalid_input", "vm_error_code": null }

What error, if any, are you getting?

Failed to create SignedTransaction from SubmitTransactionRequest: Failed to parse transaction payload: invalid transaction argument: Struct(Runtime([Vector([U8(100), U8(106), U8(103), U8(116), U8(101), U8(115), U8(116), U8(50), U8(50), U8(50), U8(50), U8(50), U8(50)])]))

What have you tried or looked at? Or how can we reproduce the error?

No response

Which operating system are you using?

N/A

Which SDK or tool are you using? (if any)

REST API

Describe your environment or tooling in detail

Calling Aptos API using Java