rpc: init wrapper crate + global: snapshot

crates/brk_rpc/examples/rpc.rs

@@ -0,0 +1,21 @@
+use std::path::Path;
+
+use bitcoincore_rpc::RpcApi;
+use brk_rpc::{Auth, Client};
+
+fn main() {
+    brk_logger::init(None).unwrap();
+
+    let bitcoin_dir = Path::new(&std::env::var("HOME").unwrap())
+        .join("Library")
+        .join("Application Support")
+        .join("Bitcoin");
+
+    let auth = Auth::CookieFile(bitcoin_dir.join(".cookie"));
+
+    let client = Client::new("http://localhost:8332", auth).unwrap();
+
+    loop {
+        println!("{:?}", client.call(|c| c.get_block_count()).unwrap());
+    }
+}