apitypes: add APIError

Author: charludo

apitypes/apitypes.go

@@ -8,3 +8,11 @@ package apitypes
 
 // Port is the listening port of the HTTP API server.
 const Port = "1314"
+
+// APIError is the body returned by the Contrast HTTP API if a request was not successful.
+type APIError struct {
+	// Version is the Coordinator version.
+	Version    string `json:"version"`
+	StatusCode int    `json:"status_code"`
+	Err        string `json:"error"`
+}

apitypes/attest.go

@@ -22,11 +22,9 @@ type AttestationRequest struct {
 }
 
 // AttestationError is returned by the /attest endpoint if the request was not successful.
-type AttestationError struct {
-	// Version is the Coordinator version.
-	Version string `json:"version"`
-	Err     string `json:"error"`
-}
+//
+// It is an alias of [APIError], which all Contrast HTTP API endpoints return on error.
+type AttestationError = APIError
 
 // AttestationResponse contains all fields required for application-level verification.
 type AttestationResponse struct {