Add middleware for fetching all keystore configs.

Author: jameseaster

lib/middleware.js

@@ -43,6 +43,16 @@ export function createGetKeystoreConfig({routes}) {
   });
 }
 
+// creates middleware to get all the keystore configs for root controller
+export function createGetAllKeystoreConfigs() {
+  return asyncHandler(async (req, _, next) => {
+    const controller = req.query.controller;
+    const results = await storage.getAll({req, controller});
+    req.keystores = results.map(r => r.config);
+    next();
+  });
+}
+
 // creates middleware for handling KMS operations
 export function createKmsOperationMiddleware() {
   const {kmsOperationOptions} = config['kms-http'];