chore(server): Move api-server in to it's own DIR

api-server/server/utils/create-handled-error.js

@@ -0,0 +1,32 @@
+const _handledError = Symbol('handledError');
+
+export function isHandledError(err) {
+  return !!err[_handledError];
+}
+
+export function unwrapHandledError(err) {
+  return err[_handledError] || {};
+}
+
+export function wrapHandledError(err, {
+  type,
+  message,
+  redirectTo,
+  status = 200
+}) {
+  err[_handledError] = { type, message, redirectTo, status };
+  return err;
+}
+
+// for use with express-validator error formatter
+export const createValidatorErrorFormatter = (type, redirectTo) =>
+  ({ msg }) => wrapHandledError(
+    new Error(msg),
+    {
+      type,
+      message: msg,
+      redirectTo,
+      // we default to 400 as these are malformed requests
+      status: 400
+    }
+  );