Refactor using Tauri (#278)

crates/gpapi/src/utils/endpoint.rs

@@ -0,0 +1,20 @@
+use tokio::fs;
+
+use crate::GP_SERVICE_LOCK_FILE;
+
+async fn read_port() -> anyhow::Result<String> {
+  let port = fs::read_to_string(GP_SERVICE_LOCK_FILE).await?;
+  Ok(port.trim().to_string())
+}
+
+pub async fn http_endpoint() -> anyhow::Result<String> {
+  let port = read_port().await?;
+
+  Ok(format!("http://127.0.0.1:{}", port))
+}
+
+pub async fn ws_endpoint() -> anyhow::Result<String> {
+  let port = read_port().await?;
+
+  Ok(format!("ws://127.0.0.1:{}/ws", port))
+}