Add delete handler and json-payload error response

src/handlers/mod.rs

@@ -1,2 +1,38 @@
+use actix_web::{error, Error, HttpRequest, HttpResponse};
+use serde::ser::SerializeStruct;
+use serde::{Serialize, Serializer};
+
+pub(crate) mod errors;
 pub mod v1;
-mod errors;
+
+enum EmgauwaJsonPayLoadError {
+    Error(error::JsonPayloadError),
+}
+
+impl Serialize for EmgauwaJsonPayLoadError {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        let mut s = serializer.serialize_struct("error", 3)?;
+        s.serialize_field("type", "json-payload-error")?;
+        s.serialize_field("code", &400)?;
+        s.serialize_field(
+            "description",
+            &match self {
+                EmgauwaJsonPayLoadError::Error(err) => format!("{}", err),
+            }
+        )?;
+        s.end()
+    }
+}
+
+pub fn json_error_handler(err: error::JsonPayloadError, _: &HttpRequest) -> Error {
+    error::InternalError::from_response(
+        "",
+        HttpResponse::BadRequest()
+            .content_type("application/json")
+            .json(EmgauwaJsonPayLoadError::Error(err)),
+    )
+    .into()
+}