feat: initial commit — antigravity proxy with MITM, standalone LS, and snapshot tooling

src/api/util.rs

@@ -0,0 +1,36 @@
+//! Shared utilities for API handlers.
+
+use axum::{
+    http::StatusCode,
+    response::{sse::Event, IntoResponse, Json},
+};
+use std::time::{SystemTime, UNIX_EPOCH};
+
+use super::types::{ErrorDetail, ErrorResponse};
+
+pub(crate) fn err_response(
+    status: StatusCode,
+    message: String,
+    error_type: &str,
+) -> axum::response::Response {
+    let body = ErrorResponse {
+        error: ErrorDetail {
+            message,
+            error_type: error_type.to_string(),
+        },
+    };
+    (status, Json(body)).into_response()
+}
+
+pub(crate) fn now_unix() -> u64 {
+    SystemTime::now()
+        .duration_since(UNIX_EPOCH)
+        .unwrap_or_default()
+        .as_secs()
+}
+
+pub(crate) fn responses_sse_event(event_type: &str, data: serde_json::Value) -> Event {
+    Event::default()
+        .event(event_type)
+        .data(serde_json::to_string(&data).unwrap())
+}