1 files changed, 44 insertions, 0 deletions
diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..d40ddf3
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,44 @@
+use std::fmt::Display;
+
+use hyper::StatusCode;
+
+/// Encapsulates a status code and an error message.
+#[derive(Debug)]
+pub struct Error {
+    pub code: StatusCode,
+    pub message: String,
+}
+
+impl Display for Error {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "error: {}", self.message)
+    }
+}
+
+impl std::error::Error for Error {
+}
+
+impl Error {
+    /// Returns an HTTP response builder with the status code set to `self.code`.
+    pub fn response_builder(&self) -> hyper::http::response::Builder {
+        hyper::Response::builder().status(self.code)
+    }
+
+    // some conventient constructors for common errors
+
+    pub fn bad_request(message: String) -> Self {
+        Error{code: StatusCode::BAD_REQUEST, message}
+    }
+    pub fn not_found(message: String) -> Self {
+        Error{code: StatusCode::NOT_FOUND, message}
+    }
+    pub fn unauthorized(message: String) -> Self {
+        Error{code: StatusCode::UNAUTHORIZED, message}
+    }
+    pub fn internal(message: String) -> Self {
+        Error{code: StatusCode::INTERNAL_SERVER_ERROR, message}
+    }
+    pub fn method_not_allowed(message: String) -> Self {
+        Error{code: StatusCode::METHOD_NOT_ALLOWED, message}
+    }
+}
+\ No newline at end of file