Solana transaction simulation for builders and traders

These functions are available when using the SVM addon for Solana and SVM-compatible blockchains.

system_program_id

svm::system_program_id returns the id of the system program, 11111111111111111111111111111111.

output "system_program_id" {
    value = svm::system_program_id()
}
// > 11111111111111111111111111111111

default_pubkey

svm::default_pubkey returns a default public key, 11111111111111111111111111111111.

output "default_pubkey" {
    value = svm::default_pubkey()
}
// > 11111111111111111111111111111111

get_instruction_data_from_idl_path

svm::get_instruction_data_from_idl_path creates encoded instruction data for a program invocation, providing type checking and serialization based on the provided IDL file.

Inputs

Name	Required	Type	Description
`idl_path`	required	string	The path, relative to the txtx.yml, to the IDL `.json` file
`instruction_name`	required	string	The name of the instruction to generate data for
`arguments`	optional	array[string]	The instruction arguments to generate data for

output "data" {
    value = svm::get_instruction_data_from_idl("/path/to/idl.json", "my_instruction", ["arg1", "arg2"])
}
// > data: 0x95763bdcc47fa1b305000000776f726c64

get_instruction_data_from_idl

svm::get_instruction_data_from_idl creates encoded instruction data for a program invocation, providing type checking and serialization based on the provided IDL data.

Inputs

Name	Required	Type	Description
`idl`	required	string \| SVM_IDL	The program IDL
`instruction_name`	required	string	The name of the instruction to generate data for, as indexed by the IDL
`arguments`	optional	array[string]	The instruction arguments to generate data for

output "data" {
    value = svm::get_instruction_data_from_idl(variable.contract.idl, "my_instruction", ["arg1", "arg2"])
}
// > data: 0x95763bdcc47fa1b305000000776f726c64

get_program_from_anchor_project

svm::get_program_from_anchor_project retrieves the program deployment artifacts for a program in an Anchor project.

Inputs

Name	Required	Type	Description
`program_name`	required	string	The name of the program being deployed
`keypair_path`	optional	string	The location of the program keypair file
`idl_path`	optional	string	The location of the program IDL file
`bin_path`	optional	string	The location of the program binary file

variable "contract" {
    value = svm::get_program_from_anchor_project("my_program")
}
output "idl" {
    value = variable.contract.idl
}

get_program_from_native_project

svm::get_program_from_native_project retrieves the program deployment artifacts for a non-Anchor program.

Inputs

Name	Required	Type	Description
`program_name`	required	string	The name of the program being deployed
`keypair_path`	optional	string	The location of the program keypair file
`idl_path`	optional	string	The location of the program IDL file
`bin_path`	optional	string	The location of the program binary file

variable "contract" {
    value = svm::get_program_from_native_project("my_program")
}
output "idl" {
    value = variable.contract.idl
}

sol_to_lamports

svm::sol_to_lamports converts the provided SOL amount to lamports.

output "lamports" {
    value = svm::sol_to_lamports(1.1)
}
// lamports: 1100000000

lamports_to_sol

svm::lamports_to_sol converts the provided number of lamports amount to SOL.

output "sol" {
    value = svm::lamports_to_sol(1100000000)
}
// sol: 1.1

find_pda

svm::find_pda finds a valid PDA using the provided program id and seeds.

Inputs

Name	Required	Type	Description
`program_id`	required	string	The address of the program the PDA is derived from
`seeds`	optional	array[string]	An optional array of seeds (max 16, 32 bytes each)

variable "pda" {
    value = svm::find_pda("3bv3j4GvMPjvvBX9QdoX27pVoWhDSXpwKZipFF1QiVr6", ["data"])
}
output "pda" {
    value = std::encode_base58(variable.pda.pda)
}
output "bump" {
    value = variable.pda.bump_seed
}
// > pda: 4amHoWMBgLkPfM8Nq9ZP33Liq9FCuqrLoU1feejkdsUJ
// > bump: 252

get_associated_token_account

svm::get_associated_token_account computes the address of the associated token account for the provided wallet and token mint addresses.

Inputs

Name	Required	Type	Description
`wallet_address`	required	string	The address of the wallet
`token_mint_address`	optional	string	The address of the token mint

variable "token_account" {
    value = svm::get_associated_token_account(signer.caller.address, "So11111111111111111111111111111111111111112")
}

create_token_account_instruction

svm::create_token_account_instruction creates raw instruction bytes to create an associated token account.

Inputs

Name	Required	Type	Description
`funding_address`	required	string	The address of the funding account
`wallet_address`	required	string	The address of the wallet
`token_mint_address`	optional	string	The address of the token mint
`token_program_id`	optional	string	The address of the token program

action "call" "svm::process_instructions" {
    signers = [signer.caller]

    instruction {
        raw_bytes = svm::create_token_account_instruction(
            signer.caller.address, // funding address
            signer.caller.address, // wallet address
            variable.token_mint, // token mint address
            variable.token_program // token program id
        )
    }
}

u64

svm::u64 creates a byte array representation of a u64 integer, suitable for use as a seed in PDA derivation.

Inputs

Name	Required	Type	Description
`value`	required	integer	The u64 integer to convert to a byte array

variable "pda" {
    value = svm::find_pda("3bv3j4GvMPjvvBX9QdoX27pVoWhDSXpwKZipFF1QiVr6", [svm::u64(1000000000)])
}

i64

svm::i64 creates a byte array representation of an i64 integer, suitable for use as a seed in PDA derivation.

Inputs

Name	Required	Type	Description
`value`	required	integer	The i64 integer to convert to a byte array

variable "pda" {
    value = svm::find_pda("3bv3j4GvMPjvvBX9QdoX27pVoWhDSXpwKZipFF1QiVr6", [svm::i64(-1000000000)])
}

SVM Functions

system_program_id

default_pubkey

get_instruction_data_from_idl_path

Inputs

get_instruction_data_from_idl

Inputs

get_program_from_anchor_project

Inputs

get_program_from_native_project

Inputs

sol_to_lamports

lamports_to_sol

find_pda

Inputs

get_associated_token_account

Inputs

create_token_account_instruction

Inputs

u64

Inputs

i64

Inputs

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