ByteVector

ByteVector is a data type for byte array.

To assign a value to a ByteVector variable, you can use a string in Base16 (opens new window), Base58 (opens new window), or Base64 (opens new window) with the appropriate prefix:

let a = base16'52696465'
let b = base58'8t38fWQhrYJsqxXtPpiRCEk1g5RJdq9bG5Rkr2N7mDFC'
let c = base64'UmlkZQ=='

This method, unlike the fromBase16String, fromBase58String, and fromBase64String functions, does not increase the complexity of the script, since decoding is performed by the compiler.

To convert integer, boolean and string values to a byte array use toBytes function:

let a = 42.toBytes()
let b = true.toBytes()
let c = "Ride".toBytes()

For more byte array functions, see the Built-in Functions.

Limitations

The maximum size of a ByteVector variable is 32,767 bytes.

Exception: the bodyBytes field of transaction structure. You can pass this value as an argument to the rsaVerify and sigVerify verification functions (but cannot concatenate with other byte arrays in case the limit is exceeded).