feat: initial AWS Server Go SDK

errors.go

@@ -0,0 +1,44 @@
+package awsserversdk
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+type APIError struct {
+	StatusCode int
+	Code       int
+	Message    string
+	Data       json.RawMessage
+	Body       string
+}
+
+func (e *APIError) Error() string {
+	return fmt.Sprintf("aws server API: HTTP %d code %d: %s", e.StatusCode, e.Code, e.Message)
+}
+func IsUnauthorized(err error) bool {
+	value, ok := err.(*APIError)
+	return ok && (value.StatusCode == http.StatusUnauthorized || value.StatusCode == http.StatusForbidden)
+}
+func IsConflict(err error) bool {
+	value, ok := err.(*APIError)
+	return ok && value.StatusCode == http.StatusConflict
+}
+func IsBudgetExceeded(err error) bool {
+	value, ok := err.(*APIError)
+	if !ok || value.StatusCode != http.StatusConflict {
+		return false
+	}
+	var data map[string]any
+	return json.Unmarshal(value.Data, &data) == nil && data["shortfall"] != nil
+}
+
+type TaskError struct{ Task Task }
+
+func (e *TaskError) Error() string {
+	if e.Task.ErrorMessage != "" {
+		return e.Task.ErrorMessage
+	}
+	return "operation task failed: " + e.Task.Status
+}