Upload dir async

src/Formidable.js

@@ -501,7 +501,16 @@ class IncomingForm extends EventEmitter {
       });
     }
     if (this.options.createDirsFromUploads) {
-      await createNecessaryDirectoriesAsync(filepath);
+      try {
+        await createNecessaryDirectoriesAsync(filepath);
+      } catch (errorCreatingDir) {
+        this._error(
+          new FormidableError(
+          `cannot create directory`,
+          errors.cannotCreateDir,
+          409,
+        ),);
+      }
     }
     return new PersistentFile({
       newFilename,

src/FormidableError.js

@@ -16,6 +16,7 @@ const unknownTransferEncoding = 1014;
 const maxFilesExceeded = 1015;
 const biggerThanMaxFileSize = 1016;
 const pluginFailed = 1017;
+const cannotCreateDir = 1018;
 
 const FormidableError = class extends Error {
   constructor(message, internalCode, httpCode = 500) {
@@ -44,6 +45,7 @@ export {
   unknownTransferEncoding,
   biggerThanTotalMaxFileSize,
   pluginFailed,
+  cannotCreateDir,
 };
 
 export default FormidableError;