Transactions

Signed-off-by: Nurzhan Sakén <nurzhan.sakenov@gmail.com>

Rust/examples/transaction.rs

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+//! Shows how to work directly with transactions.
+
+use iroha::data_model::prelude::{Metadata, Mint};
+use iroha_examples::{AliceInWonderland, RosesOfAliceInWonderland};
+
+fn main() -> iroha_examples::Result<()> {
+    // Prepare the instructions you want to execute
+    let roses_of_alice_in_wland = RosesOfAliceInWonderland::id();
+    let mint_roses_of_alice_in_wland = Mint::asset_numeric(1_u32, roses_of_alice_in_wland);
+
+    // Combine the instructions
+    let instructions = [
+        mint_roses_of_alice_in_wland.clone(),
+        mint_roses_of_alice_in_wland,
+    ];
+
+    // Build a transaction with the prepared instructions and empty metadata
+    // on behalf of the account configured with the client
+    let as_alice_in_wland = AliceInWonderland::client();
+    let signed_tx = as_alice_in_wland.build_transaction(instructions, Metadata::default());
+
+    let _tx_hash_1 = as_alice_in_wland.submit_transaction(&signed_tx)?;
+
+    // Transaction 1 may or may not have been committed or rejected.
+    // If you want synchronous behavior, use the _blocking variant:
+
+    let _tx_hash_2 = as_alice_in_wland.submit_transaction_blocking(&signed_tx)?;
+
+    // If this line has been reached, Transaction 2 has been committed.
+    Ok(())
+}