feat: openssl based hoppscotch-relay for request forwarding (#4442)

packages/hoppscotch-relay/src/error.rs

@@ -0,0 +1,16 @@
+use serde::Serialize;
+use thiserror::Error;
+
+#[derive(Debug, Error, Serialize)]
+pub enum RelayError {
+    #[error("Invalid method")]
+    InvalidMethod,
+    #[error("Invalid URL")]
+    InvalidUrl,
+    #[error("Invalid headers")]
+    InvalidHeaders,
+    #[error("Request run error: {0}")]
+    RequestRunError(String),
+}
+
+pub type RelayResult<T> = std::result::Result<T, RelayError>;