From 46e4d2f663ea1a878c50888c8ea899e789ca6a01 Mon Sep 17 00:00:00 2001
From: David Stone <davidjamesstone@gmail.com>
Date: Mon, 26 Oct 2026 16:37:01 +0000
Subject: [PATCH] Add auth field to FormAdapterSubmissionMessageMeta and schema
 validation

---
 src/server/plugins/engine/types.ts        | 4 ++++
 src/server/plugins/engine/types/schema.ts | 6 +++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/server/plugins/engine/types.ts b/src/server/plugins/engine/types.ts
index fe35974b8..a22ddac9a 100644
--- a/src/server/plugins/engine/types.ts
+++ b/src/server/plugins/engine/types.ts
@@ -547,6 +547,10 @@ export interface FormAdapterSubmissionMessageMeta {
   versionMetadata?: FormVersionMetadata
   language?: string
   custom?: Record<string, unknown>
+  auth?: {
+    sub: string
+    issuer: string
+  }
 }
 
 export type FormAdapterSubmissionMessageMetaSerialised = Omit<
diff --git a/src/server/plugins/engine/types/schema.ts b/src/server/plugins/engine/types/schema.ts
index 9257c449c..94713fd13 100644
--- a/src/server/plugins/engine/types/schema.ts
+++ b/src/server/plugins/engine/types/schema.ts
@@ -38,7 +38,11 @@ export const formAdapterSubmissionMessageMetaSchema =
       .pattern(/^/, Joi.any())
       .unknown()
       .optional()
-      .description('Custom properties for the message')
+      .description('Custom properties for the message'),
+    auth: Joi.object({
+      sub: Joi.string().required(),
+      issuer: Joi.string().required()
+    }).optional()
   })
 
 export const formAdapterSubmissionMessageDataSchema =