Example 4

Rust adjustments for Example "Generate Address".

What adjustments do I need to make in Rust?

In summary, here are the steps you need to take to create the API function.

Cargo.toml

There is no need to add any crates. It's the same as in Example 3.

api.rs - Used Paths

There is no need to add any path. It's the same as in Example 3.

api.rs - Function generate_address()

#[allow(dead_code)]
pub fn generate_address(wallet_info: WalletInfo) -> Result<String> {
    let rt = Runtime::new().unwrap();
    rt.block_on(async {
        let stronghold_filepath = wallet_info.stronghold_filepath;
        env::set_current_dir(&stronghold_filepath).ok();

        // Create the account manager
        let manager = AccountManager::builder().finish().await?;

        // Get the account we generated with `01_create_wallet`
        let account = manager.get_account((&wallet_info.alias).to_string()).await?;

        // Set the stronghold password
        manager
            .set_stronghold_password(&wallet_info.stronghold_password)
            .await?;

        let addresses = account.generate_addresses(1, None).await?;
        //println!("Generated address: {}", address[0].address().to_bech32());

        Ok(addresses[0].address().to_bech32())
    })
}

Checks using cargo build

All checks (-> except iOS Simulator) should work without any issue. Please also refer to the explanations of Example 3 and the corresponding video (2023-09-03: ToDo).

To examine the various targets, you should navigate from playground_app root directory to the rust directory:

cd rust

Then, within the rust directory, excute the following commands.

Android

If you haven't already, install the cargo-ndk command using:

cargo install cargo-ndk

I only check the ABI arm64-v8a.

a) If you've had NO problems with the 3rd party library libsodium, use the command:

cargo ndk -t arm64-v8a build

b) If you've HAD problems with the 3rd party library libsodium, use the command:

SODIUM_LIB_DIR="/path/to/libsodium" SODIUM_SHARED=1 cargo ndk -t arm64-v8a build

e.g.

SODIUM_LIB_DIR="/Users/yourname/playground_app/android/app/src/main/jniLibs/arm64-v8a" SODIUM_SHARED=1 cargo ndk -t arm64-v8a build

-> Why do you need SODIUM_LIB_DIR and SODIUM_SHARED here?

macOS

cargo build --target aarch64-apple-darwin

iOS Simulator

This check will fail, please refer to the explanations of Example 3 (Libsodium).

cargo build --target aarch64-apple-ios-sim

iOS Device

cargo build --target aarch64-apple-ios