move examples to main repo so we can include_str them for publishing (#993)

* move exampels to main repo so we can include_str them for publishing

* update CI to not break examples

subxt/examples/tx_status_stream.rs

@@ -0,0 +1,58 @@
+use futures::StreamExt;
+use sp_keyring::AccountKeyring;
+use subxt::{
+    tx::{PairSigner, TxStatus},
+    OnlineClient, PolkadotConfig,
+};
+
+// Generate an interface that we can use from the node's metadata.
+#[subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata_small.scale")]
+pub mod polkadot {}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    // Create a new API client, configured to talk to Polkadot nodes.
+    let api = OnlineClient::<PolkadotConfig>::new().await?;
+
+    // Build a balance transfer extrinsic.
+    let dest = AccountKeyring::Bob.to_account_id().into();
+    let balance_transfer_tx = polkadot::tx().balances().transfer(dest, 10_000);
+
+    // Submit the balance transfer extrinsic from Alice, and then monitor the
+    // progress of it.
+    let signer = PairSigner::new(AccountKeyring::Alice.pair());
+    let mut balance_transfer_progress = api
+        .tx()
+        .sign_and_submit_then_watch_default(&balance_transfer_tx, &signer)
+        .await?;
+
+    while let Some(status) = balance_transfer_progress.next().await {
+        match status? {
+            // It's finalized in a block!
+            TxStatus::Finalized(in_block) => {
+                println!(
+                    "Transaction {:?} is finalized in block {:?}",
+                    in_block.extrinsic_hash(),
+                    in_block.block_hash()
+                );
+
+                // grab the events and fail if no ExtrinsicSuccess event seen:
+                let events = in_block.wait_for_success().await?;
+                // We can look for events (this uses the static interface; we can also iterate
+                // over them and dynamically decode them):
+                let transfer_event = events.find_first::<polkadot::balances::events::Transfer>()?;
+
+                if let Some(event) = transfer_event {
+                    println!("Balance transfer success: {event:?}");
+                } else {
+                    println!("Failed to find Balances::Transfer Event");
+                }
+            }
+            // Just log any other status we encounter:
+            other => {
+                println!("Status: {other:?}");
+            }
+        }
+    }
+    Ok(())
+}