server side cleanup

server/api/middlewares/validation.js

@@ -0,0 +1,26 @@
+import httpErrors from 'http-errors';
+import validator from 'validator';
+
+export default function validation() {
+  return function validationMiddleware(ctx, next) {
+    ctx.assertPresent = function assertPresent(value, message) {
+      if (value === undefined || value === null || value === '') {
+        throw httpErrors.BadRequest(message);
+      }
+    };
+
+    ctx.assertEmail = function assertEmail(value, message) {
+      if (!validator.isEmail(value)) {
+        throw httpErrors.BadRequest(message);
+      }
+    };
+
+    ctx.assertUuid = function assertUuid(value, message) {
+      if (!validator.isUUID(value)) {
+        throw httpErrors.BadRequest(message);
+      }
+    };
+
+    return next();
+  };
+}