first commit

api/app/exceptions/user_error.ts

@@ -0,0 +1,18 @@
+import { Exception } from '@adonisjs/core/exceptions'
+import type { HttpContext } from '@adonisjs/core/http'
+
+/**
+ * An error whose message is meant for the user (shown as is in the
+ * dashboard). Defaults to a 400 status.
+ */
+export default class UserError extends Exception {
+  static status = 400
+
+  constructor(message: string, status?: number) {
+    super(message, { status: status ?? UserError.status })
+  }
+
+  async handle(error: this, ctx: HttpContext) {
+    ctx.response.status(error.status).send({ message: error.message })
+  }
+}