add option to result converter

codex/errors.nim

@@ -7,6 +7,8 @@
 ## This file may not be copied, modified, or distributed except according to
 ## those terms.
 
+import std/options
+
 import pkg/stew/results
 import pkg/chronos
 import pkg/questionable/results
@@ -29,6 +31,12 @@ template mapFailure*[T, V, E](
 template mapFailure*[T, V](exp: Result[T, V]): Result[T, ref CatchableError] =
   mapFailure(exp, CodexError)
 
+template toResult*[T](exp: Option[T]): Result[T, ref CatchableError] =
+  if exp.isSome:
+    success exp.get
+  else:
+    T.failure("Option is None")
+
 proc allFutureResult*[T](fut: seq[Future[T]]): Future[?!void] {.async.} =
   try:
     await allFuturesThrowing(fut)