The Rust SDK represents Fuel's Strings as SizedAsciiString<LEN>, where the generic parameter LEN is the length of a given string. This abstraction is necessary because all strings in Fuel and Sway are statically-sized, i.e., you must know the size of the string beforehand.
Here's how you can create a simple string using SizedAsciiString:
To make working with SizedAsciiStrings easier, you can use try_into() to convert from Rust's String to SizedAsciiString, and you can use into() to convert from SizedAsciiString to Rust's String. Here are a few examples:
If your contract's method takes and returns, for instance, a Sway's str[23]. When using the SDK, this method will take and return a SizedAsciiString<23>, and you can pass a string to it like this:
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